Ranked by the close-to-close change of the trading session each announcement landed in. How this is measured.
Data as of the trading session of
,
18
of 20 completed market sessions produced ranked moves.
That date is the last ranked session, not the last priced one, so follow-through dates run later.
On 100 of these rows the measured session was reconstructed from the announcement time, because it predates our stored session records.
Every percentage on a row, the follow-through readings included, is measured against that row's own pre-news close, which the row names. A day +5 reading is therefore the move from before the announcement, not a further change on top of the headline percentage.
Rows are ordered by the move measured when the board was ranked. A percentage recomputed from the session's own closing prices can sit a little above or below its neighbours; the rank is the one the measured move gave the row.
against the close of 12/31/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/29/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 7.0% bigger, at -76.10%.
Month end -75.11% on 2025-01-31
This month ended before the fifth session after the move.
Close before and after
$2.25 to $0.6500 as traded
Session open, high, low
$0.8000, $0.8497, $0.6208
Opening gap
-64.44%
Close inside the session range
0.13 of the range, where 1.00 is the high
Session volume
12,955,568 shares, $8,421,119
Relative volume
39.6x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
5
STSSMore than one ranked move this monthrelease reads positive2+ ranked moves
-68.05%
against the close of 01/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/03/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
9.6% of the drop was recovered five sessions later.
Month end -60.98% on 2025-01-31
Close before and after
$2.05 to $0.8891 split-adjusted
Session open, high, low
$1.20, $1.54, $0.8000
Opening gap
-41.46%
Close inside the session range
0.12 of the range, where 1.00 is the high
Session volume
12,314,304 shares, $10,948,648
Relative volume
73.4x the median of the 20 sessions before the pre-news close
Baseline gap
3 calendar days from the pre-news close to the measured session
8
XTIAMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
-55.74%
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 17.5% bigger, at -52.42%.
Month end -53.16% on 2025-01-31
Close before and after
$32.50 to $18.00 as traded
Session open, high, low
$26.63, $28.00, $17.25
Opening gap
-18.08%
Close inside the session range
0.07 of the range, where 1.00 is the high
Session volume
2,403,025 shares, $43,254,450
Relative volume
41.5x the median of the 20 sessions before the pre-news close
Baseline gap
2 calendar days from the pre-news close to the measured session
13
QUBTAlso on the opposite board this monthon both boards
-43.34%
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Earningscatalyst from a later release the same sessionRelease reads positive, stock fell 43.34%
5.6% of the drop was recovered five sessions later.
Month end -51.57% on 2025-01-31
Close before and after
$4.13 to $2.34 split-adjusted
Session open, high, low
$3.35, $3.35, $1.96
Opening gap
-18.89%
Close inside the session range
0.27 of the range, where 1.00 is the high
Session volume
4,369,945 shares, $10,225,671
Relative volume
8.9x the median of the 20 sessions before the pre-news close
Baseline gap
3 calendar days from the pre-news close to the measured session
15
EVTLAlso on the opposite board this monthon both boards
-42.35%
against the close of 01/22/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 10.2% bigger, at -46.66%.
Month end -45.26% on 2025-01-31
Close before and after
$9.28 to $5.35 split-adjusted
Session open, high, low
$5.71, $5.99, $5.10
Opening gap
-38.47%
Close inside the session range
0.28 of the range, where 1.00 is the high
Session volume
4,907,177 shares, $26,253,397
Relative volume
16.2x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
16
XTIAMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
-42.10%
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 25.0% bigger, at -52.63%.
Month end -59.84% on 2025-01-31
Close before and after
$12.63 to $7.31 split-adjusted
Session open, high, low
$8.00, $8.30, $3.85
Opening gap
-36.63%
Close inside the session range
0.78 of the range, where 1.00 is the high
Session volume
6,229,676 shares, $45,538,932
Relative volume
12.9x the median of the 20 sessions before the pre-news close
Baseline gap
2 calendar days from the pre-news close to the measured session
17
LAESMore than one ranked move this monthAlso on the opposite board this monthrelease reads positive2+ ranked moveson both boards
-41.54%
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads positive, stock fell 41.54%
against the close of 01/15/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads positive, stock fell 40.50%
against the close of 01/29/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads positive, stock fell 36.42%
Five sessions later the drop was 7.8% bigger, at -39.26%.
Month end -35.28% on 2025-01-31
Close before and after
$14.06 to $8.94 split-adjusted
Session open, high, low
$10.27, $10.32, $8.51
Opening gap
-26.96%
Close inside the session range
0.24 of the range, where 1.00 is the high
Session volume
1,385,938 shares, $12,390,286
Relative volume
12.9x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
22
MBOTAlso on the opposite board this monthon both boards
-33.92%
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 9.4% bigger, at -37.10%.
Month end -34.98% on 2025-01-31
Close before and after
$2.83 to $1.87 split-adjusted
Session open, high, low
$2.32, $2.33, $1.67
Opening gap
-18.20%
Close inside the session range
0.30 of the range, where 1.00 is the high
Session volume
8,731,757 shares, $16,328,386
Relative volume
36.7x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
23
BZAIMore than one ranked move this monthrelease reads positive2+ ranked moves
-32.29%
against the close of 01/15/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 24.2% bigger, at -38.70%.
Month end -38.31% on 2025-01-31
Close before and after
$23.05 to $15.87 split-adjusted
Session open, high, low
$20.00, $20.00, $14.79
Opening gap
-13.23%
Close inside the session range
0.21 of the range, where 1.00 is the high
Session volume
9,828,546 shares, $155,979,025
Relative volume
11.6x the median of the 20 sessions before the pre-news close
Baseline gap
2 calendar days from the pre-news close to the measured session
25
QMCOMore than one ranked move this month2+ ranked moves
-30.33%
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/21/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/14/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/23/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 67.9% bigger, at -45.90%.
Month end -45.90% on 2025-01-31
Close before and after
$18.07 to $13.13 as traded
Session open, high, low
$12.45, $13.91, $12.09
Opening gap
-31.12%
Close inside the session range
0.57 of the range, where 1.00 is the high
Session volume
2,425,125 shares, $31,841,891
Relative volume
1.5x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
31
EVAXMore than one ranked move this monthrelease reads positive2+ ranked moves
-27.17%
against the close of 01/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads positive, stock fell 27.17%
Five sessions later the drop was 67.5% bigger, at -45.50%.
Month end -59.08% on 2025-01-31
This month ended before the fifth session after the move.
Close before and after
$6.00 to $4.37 split-adjusted
Session open, high, low
$5.42, $6.09, $4.32
Opening gap
-9.67%
Close inside the session range
0.03 of the range, where 1.00 is the high
Session volume
793,709 shares, $3,468,508
Relative volume
5.6x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
32
EVAXMore than one ranked move this month2+ ranked moves
-27.14%
against the close of 01/29/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
21.5% of the drop was recovered five sessions later.
Month end -29.14% on 2025-01-31
Close before and after
$15.99 to $11.66 split-adjusted
Session open, high, low
$12.40, $13.10, $11.30
Opening gap
-22.45%
Close inside the session range
0.20 of the range, where 1.00 is the high
Session volume
5,684,558 shares, $66,281,946
Relative volume
4.8x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
34
QSIMore than one ranked move this monthrelease reads positive2+ ranked moves
-27.03%
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads positive, stock fell 27.03%
71.3% of the drop was recovered five sessions later.
Month end -25.14% on 2025-01-31
Close before and after
$2.65 to $1.93 split-adjusted
Session open, high, low
$2.34, $2.44, $1.85
Opening gap
-11.72%
Close inside the session range
0.14 of the range, where 1.00 is the high
Session volume
32,634,151 shares, $62,983,911
Relative volume
0.9x the median of the 20 sessions before the pre-news close
Baseline gap
3 calendar days from the pre-news close to the measured session
35
BZAIMore than one ranked move this month2+ ranked moves
-26.66%
against the close of 01/14/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
15.3% of the drop was recovered five sessions later.
Month end -30.01% on 2025-01-31
Close before and after
$45.79 to $33.71 split-adjusted
Session open, high, low
$37.88, $38.00, $30.20
Opening gap
-17.27%
Close inside the session range
0.45 of the range, where 1.00 is the high
Session volume
4,041,518 shares, $136,239,572
Relative volume
13.2x the median of the 20 sessions before the pre-news close
Baseline gap
3 calendar days from the pre-news close to the measured session
37
LAESMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
-26.22%
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/14/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/17/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
56.8% of the drop was recovered five sessions later.
Month end -10.54% on 2025-01-31
Close before and after
$112.38 to $83.79 split-adjusted
Session open, high, low
$86.25, $87.95, $75.06
Opening gap
-23.25%
Close inside the session range
0.68 of the range, where 1.00 is the high
Session volume
18,433,614 shares, $1,544,552,517
Relative volume
9.2x the median of the 20 sessions before the pre-news close
Baseline gap
4 calendar days from the pre-news close to the measured session
42
RZLVAlso on the opposite board this monthrelease reads positiveon both boards
-25.23%
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Earningscatalyst from a later release the same session
14.2x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
44
FFIEMore than one ranked move this month2+ ranked moves
-25.00%
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/28/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 30.6% bigger, at -31.98%.
Month end -29.32% on 2025-01-31
This month ended before the fifth session after the move.
Close before and after
$295.10 to $222.84 split-adjusted
Session open, high, low
$222.80, $238.00, $218.30
Opening gap
-24.50%
Close inside the session range
0.23 of the range, where 1.00 is the high
Session volume
3,271,285 shares, $728,973,149
Relative volume
10.5x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
46
QSIMore than one ranked move this month2+ ranked moves
-24.46%
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 11.7% bigger, at -27.32%.
Month end -43.35% on 2025-01-31
Close before and after
$3.50 to $2.64 split-adjusted
Session open, high, low
$2.71, $2.97, $2.30
Opening gap
-22.46%
Close inside the session range
0.51 of the range, where 1.00 is the high
Session volume
50,559,465 shares, $133,476,988
Relative volume
1.6x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
47
FFIEMore than one ranked move this month2+ ranked moves
-24.21%
against the close of 01/03/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/17/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/21/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 80.9% bigger, at -39.54%.
Month end -21.29% on 2025-01-31
Close before and after
$5.26 to $4.11 split-adjusted
Session open, high, low
$5.39, $5.44, $4.05
Opening gap
+2.47%
Close inside the session range
0.04 of the range, where 1.00 is the high
Session volume
5,524,204 shares, $22,704,478
Relative volume
2.2x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
52
BDMDAlso on the opposite board this monthon both boards
-21.81%
against the close of 01/17/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/14/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/29/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Earningscatalyst from a later release the same session
8.5% of the drop was recovered five sessions later.
Month end -20.00% on 2025-01-31
Close before and after
$74.04 to $58.00 split-adjusted
Session open, high, low
$62.28, $63.69, $54.44
Opening gap
-15.88%
Close inside the session range
0.38 of the range, where 1.00 is the high
Session volume
9,682,743 shares, $561,599,094
Relative volume
9.4x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
56
WKEYAlso on the opposite board this monthon both boards
-21.33%
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/28/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Clinical Trial Resultscatalyst from a later release the same session
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 19.9% bigger, at -24.59%.
Month end -20.51% on 2025-01-31same session
This month ended before the fifth session after the move.
Close before and after
$223.11 to $177.36 split-adjusted
Session open, high, low
$196.10, $198.65, $177.31
Opening gap
-12.11%
Close inside the session range
0.00 of the range, where 1.00 is the high
Session volume
15,072,265 shares, $2,673,216,920
Relative volume
9.8x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
62
HSDTAlso on the opposite board this monthon both boards
-20.39%
against the close of 01/21/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/21/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/23/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/29/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 21.5% bigger, at -23.11%.
Month end -28.27% on 2025-01-31
Close before and after
$71.13 to $57.60 split-adjusted
Session open, high, low
$64.82, $65.50, $57.21
Opening gap
-8.87%
Close inside the session range
0.05 of the range, where 1.00 is the high
Session volume
965,774 shares, $55,628,582
Relative volume
6.7x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
72
STSSMore than one ranked move this month2+ ranked moves
-18.91%
against the close of 01/28/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 2.8% bigger, at -19.22%.
Month end -27.52% on 2025-01-31
Close before and after
$22.89 to $18.61 split-adjusted
Session open, high, low
$19.51, $20.44, $17.75
Opening gap
-14.77%
Close inside the session range
0.32 of the range, where 1.00 is the high
Session volume
21,871,092 shares, $407,021,022
Relative volume
1.7x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
74
GRRRMore than one ranked move this month2+ ranked moves
-18.53%
against the close of 01/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/28/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/21/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
It recovered the whole drop and closed 5.67% above the pre-news price.
Month end +14.89% on 2025-01-31
This month ended before the fifth session after the move.
Close before and after
$1.41 to $1.17 split-adjusted
Session open, high, low
$1.38, $1.60, $1.06
Opening gap
-2.13%
Close inside the session range
0.20 of the range, where 1.00 is the high
Session volume
8,595,490 shares, $10,056,723
Relative volume
6.2x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
80
SPCBAlso on the opposite board this monthon both boards
-16.94%
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/22/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
0.4% of the drop was recovered five sessions later.
Month end -13.66% on 2025-01-31
Close before and after
$142.35 to $118.58 as traded
Session open, high, low
$117.50, $122.80, $115.45
Opening gap
-17.46%
Close inside the session range
0.43 of the range, where 1.00 is the high
Session volume
17,146,934 shares, $2,033,283,434
Relative volume
8.6x the median of the 20 sessions before the pre-news close
Baseline gap
1 calendar day from the pre-news close to the measured session
84
HOTHAlso on the opposite board this monthon both boards
-16.67%
against the close of 01/07/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/22/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/14/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/29/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/21/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/08/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 41.0% bigger, at -22.99%.
Month end -16.91% on 2025-01-31
Close before and after
$48.50 to $40.59 split-adjusted
Session open, high, low
$46.64, $47.56, $40.04
Opening gap
-3.84%
Close inside the session range
0.07 of the range, where 1.00 is the high
Session volume
3,030,947 shares, $123,026,139
Relative volume
4.9x the median of the 20 sessions before the pre-news close
Baseline gap
2 calendar days from the pre-news close to the measured session
90
GRRRMore than one ranked move this month2+ ranked moves
-16.20%
against the close of 01/03/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 158.3% bigger, at -41.84%.
Month end -42.22% on 2025-01-31
Close before and after
$23.52 to $19.71 split-adjusted
Session open, high, low
$18.89, $22.82, $18.69
Opening gap
-19.69%
Close inside the session range
0.25 of the range, where 1.00 is the high
Session volume
5,134,328 shares, $101,197,605
Relative volume
1.6x the median of the 20 sessions before the pre-news close
Baseline gap
3 calendar days from the pre-news close to the measured session
91
QMCOMore than one ranked move this month2+ ranked moves
-16.08%
against the close of 01/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/14/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/29/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/31/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/17/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 01/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 0.7% bigger, at -15.27%.
Month end -11.71% on 2025-01-31
This month ended before the fifth session after the move.
Close before and after
$56.00 to $47.51 split-adjusted
Session open, high, low
$51.36, $51.91, $47.37
Opening gap
-8.29%
Close inside the session range
0.03 of the range, where 1.00 is the high
Session volume
14,256,542 shares, $677,328,310
Relative volume
4.4x the median of the 20 sessions before the pre-news close
Baseline gap
3 calendar days from the pre-news close to the measured session
NYSE and Nasdaq companies with a market capitalization of $25M or more, measured today. The exchange is the one recorded on each announcement, and a release naming several tickers records one venue for all of them. A session that changed hands for less than $25,000 in total is not ranked, because a percentage set by a handful of shares is a print rather than a move. On a board older than a year a fund is identified by its name alone, because an instrument class describes whoever holds the ticker today.645 smaller events this month are held out of this month's eligible pool; switch to include them.212 events never entered this month's eligible pool, because the ticker is a warrant, a unit, a right or a preferred rather than common stock, or carries a stored capitalization above $10 trillion, which is larger than any company has reached.Include the $5M to $25M band
3 candidate events for this board could not be anchored to a trading session and are not listed.
Company names are not shown on months older than a year, because only the current holder of each ticker is known.
Whole board, unfiltered
In January 2025, the median decliner was 6.3% deeper below its pre-news close five sessions later; the largest catalyst group was Other Announcement, 34 of the 100 events, at a median of -21.8%.
Close-to-close change on the measured trading session, against the previous close.
NYSE and Nasdaq companies with a market capitalization of $25M or more, measured today. The exchange is the one recorded on each announcement, and a release naming several tickers records one venue for all of them. A session that changed hands for less than $25,000 in total is not ranked, because a percentage set by a handful of shares is a print rather than a move. On a board older than a year a fund is identified by its name alone, because an instrument class describes whoever holds the ticker today.
Fewer than 10 events in this group, so no figures are shown.
The day +5 figures are measured over the events in each group that have a five-session close, the count printed beside them, not over every event in the group.
6 other catalyst types, 12 events: Leadership Change, M&A / Acquisition, Guidance Change, FDA & Regulatory, Buyback / Dividend, No Stated Cause.
Median change since the measured close as a share of the drop
Day +1
100.0% of 100
4.6%deeper below baseline, of 100
Day +5
93.9% of 99
6.3%deeper below baseline, of 99
Month end
95.9% of 98
7.6%deeper below baseline, of 98
Month end falls before day +5 for 23 of these 98 events, so this row is not a later horizon than the one above it. 98 of the 100 events have a month-end close later than the measured session; 2 have it on the measured session itself.
Both figures in a row are measured over the events that have a close at that horizon, the count printed beside each of them, not over all 100 events on this board, which is why the denominators differ between rows.
Repeat runners
Some companies move on news more than once. The left list holds the ones that moved twice or more this month; the right list holds the ones that also moved in the months before it. The ranking above shows one row per move, so a name that keeps coming back is only visible here.
Moved twice or more inside January 2025
Two or more ranked moves this month, each on a different trading day.
Price bands are not shown on months older than a year, because the stored prices are adjusted for splits done since and a company that has reverse-split lands in a band its shares never traded in.
When the announcement landed
Pre-market57.0%
Intraday7.0%
After hours36.0%
Volume against normal
Under 5x36 events, 37.1%
5x to 20x43 events, 44.3%
Over 20x18 events, 18.6%
3 events have too little trading history for a relative volume, and are not in the tiers above.
Industry
Pharmaceutical Preparations21 events, 21.0%
Biological Products, (no Diagnostic Substances)4 events, 4.0%
Surgical & Medical Instruments & Apparatus4 events, 4.0%
Crude Petroleum & Natural Gas3 events, 3.0%
Radio & Tv Broadcasting & Communications Equipment3 events, 3.0%
Semiconductors & Related Devices3 events, 3.0%
36 other industries, 47 events
Industry not known: 15.0%
When the release and the price disagreed
11 events on this board carry the flag.
Flagged events sat 14.5 percentage points below the rest of the board five sessions later.
Median at day +5, flagged
-37.5%
Median at day +5, not flagged
-23.0%
Against December 2024
100 events in the comparable window.
December 2024 median -23.8%, selected from the 5,954 events in that month's eligible pool
January 2025 median -22.1%, 1.7 points shallower than December 2024. January 2025's median is taken over the 100 ranked rows, selected from the 8,012 events in that month's eligible pool.
The two windows drew on pools of very different size, so part of the gap between the medians is how deep into each pool the top hundred reaches rather than how severe the moves were.
How this ranking is measured
Close-to-close change on the measured trading session, against the previous close.
An announcement before 16:00 ET is measured on that trading day; one at or after 16:00 ET, or on a weekend, is measured on the next trading day.
One row per company and measured session. Other announcements the company made in the same session are listed inside the row.
A ranking is a coincidence of news and price on the same session, not proof that the news caused the move. Part of an intraday move can precede the announcement.
No Stated Cause marks a release in which the company itself says it knows of no reason for the move, while Other Announcement marks a release these rules could not classify.
Eligibility uses each company's capitalization today, not its capitalization at the time. Archive boards can therefore change as companies grow or shrink.
Prices are adjusted for stock splits the company has done since, so an older row's dollar figures are stated on today's share count and are not the prices that traded that day. The percentage move, the dollar volume and the relative volume are unaffected, because both prices carry the same adjustment. The session's share count carries the adjustment too, so the shares figure beside the dollar volume is that count restated on today's basis rather than the number of shares that changed hands. Where the ticker was retired the price series stops with it and no later adjustment reached it, so those rows are marked as traded and their dollars are the ones that changed hands on the day.
Market cap is not shown on months older than a year, because only today's figure exists.
NYSE and Nasdaq companies with a market capitalization of $25M or more, measured today. The exchange is the one recorded on each announcement, and a release naming several tickers records one venue for all of them. A session that changed hands for less than $25,000 in total is not ranked, because a percentage set by a handful of shares is a print rather than a move. On a board older than a year a fund is identified by its name alone, because an instrument class describes whoever holds the ticker today.
On 100 of these rows the measured session was reconstructed from the announcement time, because it predates our stored session records.
This archive starts at 2020-04, the first month with ranked moves.
