December 2024 Stock Gainers on News, Micro Caps Included
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
,
21
of 21 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 12/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 234.8% bigger, at +2526.62%.
Month end +2538.13% on 2024-12-31
Close before and after
$1.39 to $11.88 as traded
Session open, high, low
$2.23, $17.66, $1.84
Opening gap
+60.43%
Close inside the session range
0.63 of the range, where 1.00 is the high
Session volume
174,400,354 shares, $2,071,876,206
Relative volume
over 1,000x 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
2
LDTCunder $25M todayAlso on the opposite board this monthon both boards
+380.34%
against the close of 12/06/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 11/29/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
over 1,000x 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
4
PSQHunder $25M todayAlso on the opposite board this monthon both boards
+270.39%
against the close of 12/02/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 2.6% bigger, at +224.86%.
Month end +302.31% on 2024-12-31
Close before and after
$0.8650 to $2.76 as traded
Session open, high, low
$2.18, $3.39, $2.05
Opening gap
+152.02%
Close inside the session range
0.53 of the range, where 1.00 is the high
Session volume
182,027,077 shares, $502,394,733
Relative volume
956.0x 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
6
PLRZAlso on the opposite board this monthon both boards
+213.33%
against the close of 12/17/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/02/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/17/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 20.2% bigger, at +184.02%.
Month end +127.32% on 2024-12-31
Close before and after
$23.72 to $60.02 split-adjusted
Session open, high, low
$22.48, $64.20, $22.15
Opening gap
-5.23%
Close inside the session range
0.90 of the range, where 1.00 is the high
Session volume
22,657,216 shares, $1,359,886,104
Relative volume
9.2x 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
11
TRAWunder $25M todayAlso on the opposite board this monthon both boards
+150.40%
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/12/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
129.0x 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
17
OPTXAlso on the opposite board this monthon both boards
+98.31%
against the close of 12/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/23/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 11.9% bigger, at +106.21%.
Month end +135.35% on 2024-12-31
This month ended before the fifth session after the move.
Close before and after
$6.28 to $12.24 as traded
Session open, high, low
$6.90, $13.39, $6.40
Opening gap
+9.87%
Close inside the session range
0.84 of the range, where 1.00 is the high
Session volume
2,112,029 shares, $25,851,235
Relative volume
34.8x 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
20
AMPGAlso on the opposite board this monthon both boards
+94.54%
against the close of 12/10/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads negative, stock rose 94.09%
151.1x 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
GELSunder $25M todayMore than one ranked move this month2+ ranked moves
+91.03%
against the close of 11/29/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
55.5x 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
23
SRMAlso on the opposite board this monthon both boards
+84.10%
against the close of 12/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
over 1,000x 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
24
GXAIunder $25M todayAlso on the opposite board this monthon both boards
+83.10%
against the close of 12/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
This month ended before the fifth session after the move.
Close before and after
$1.76 to $3.14 as traded
Session open, high, low
$2.29, $3.24, $2.19
Opening gap
+29.83%
Close inside the session range
0.90 of the range, where 1.00 is the high
Session volume
159,235,201 shares, $499,998,531
Relative volume
28.9x 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
28
LAESMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+78.18%
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 58.1% bigger, at +123.64%.
Month end +123.64% on 2024-12-31
Close before and after
$2.75 to $4.90 split-adjusted
Session open, high, low
$3.59, $5.00, $3.44
Opening gap
+30.55%
Close inside the session range
0.94 of the range, where 1.00 is the high
Session volume
149,974,840 shares, $734,876,716
Relative volume
24.8x 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
29
GELSunder $25M todayMore than one ranked move this month2+ ranked moves
+78.00%
against the close of 12/06/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/23/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
over 1,000x 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
35
CADLAlso on the opposite board this monthon both boards
+68.11%
against the close of 12/10/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/02/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 1.5% bigger, at +64.47%.
Month end +77.01% on 2024-12-31
Close before and after
$11.13 to $18.20 split-adjusted
Session open, high, low
$14.70, $26.19, $12.69
Opening gap
+32.08%
Close inside the session range
0.41 of the range, where 1.00 is the high
Session volume
7,993,606 shares, $145,483,629
Relative volume
663.1x 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
40
ADCTAlso on the opposite board this monthon both boards
+63.02%
against the close of 12/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
17.8x 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
42
LAESMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+60.87%
against the close of 12/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 22.9% bigger, at +74.78%.
Month end +434.78% on 2024-12-31
Close before and after
$1.15 to $1.85 split-adjusted
Session open, high, low
$1.71, $1.99, $1.48
Opening gap
+48.70%
Close inside the session range
0.73 of the range, where 1.00 is the high
Session volume
256,791,329 shares, $475,063,959
Relative volume
109.3x 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
43
LAESMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+60.15%
against the close of 12/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 23.8% bigger, at +71.90%.
Month end +71.90% on 2024-12-31
Close before and after
$2.10 to $3.32 split-adjusted
Session open, high, low
$2.55, $7.00, $2.55
Opening gap
+21.43%
Close inside the session range
0.17 of the range, where 1.00 is the high
Session volume
36,950,682 shares, $122,676,264
Relative volume
over 1,000x 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
45
RDZNMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+57.58%
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Contract / Partnershipcatalyst from a later release the same session
against the close of 12/26/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 11/29/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/06/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/26/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 5.4% bigger, at +54.29%.
Month end +49.37% on 2024-12-31
Close before and after
$11.08 to $16.79 split-adjusted
Session open, high, low
$14.19, $18.06, $12.60
Opening gap
+28.07%
Close inside the session range
0.77 of the range, where 1.00 is the high
Session volume
193,979,867 shares, $3,256,921,967
Relative volume
7.7x 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
53
CYNunder $25M todayAlso on the opposite board this monthon both boards
+49.29%
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/02/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 11/29/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/02/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/12/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/02/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
126.7x 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
65
LAESMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+45.96%
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 229.7% bigger, at +148.99%.
Month end +241.39% on 2024-12-31
Close before and after
$4.47 to $6.49 split-adjusted
Session open, high, low
$4.33, $6.89, $4.28
Opening gap
-3.13%
Close inside the session range
0.85 of the range, where 1.00 is the high
Session volume
248,708,844 shares, $1,614,120,398
Relative volume
5.8x 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
67
QBTSMore than one ranked move this month2+ ranked moves
+44.60%
against the close of 12/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 49.6% bigger, at +66.67%.
Month end +65.46% on 2024-12-31
Close before and after
$2.49 to $3.60 split-adjusted
Session open, high, low
$3.91, $4.60, $3.43
Opening gap
+57.03%
Close inside the session range
0.15 of the range, where 1.00 is the high
Session volume
63,852,973 shares, $229,870,703
Relative volume
184.1x 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
69
KULRMore than one ranked move this month2+ ranked moves
+44.44%
against the close of 12/17/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Uplisting / Compliancecatalyst from a later release the same session
against the close of 12/10/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/23/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/10/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 17.1% bigger, at +47.53%.
Month end +14.35% on 2024-12-31
Close before and after
$4.46 to $6.27 as traded
Session open, high, low
$5.06, $6.40, $4.86
Opening gap
+13.45%
Close inside the session range
0.92 of the range, where 1.00 is the high
Session volume
2,284,509 shares, $14,323,871
Relative volume
8.8x 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
80
KULRMore than one ranked move this month2+ ranked moves
+40.35%
against the close of 12/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
It gave back the whole move and closed 2.92% below the pre-news price.
Month end +3.80% on 2024-12-31
This month ended before the fifth session after the move.
Close before and after
$27.36 to $38.40 split-adjusted
Session open, high, low
$28.16, $39.52, $27.44
Opening gap
+2.92%
Close inside the session range
0.91 of the range, where 1.00 is the high
Session volume
13,587,025 shares, $521,741,760
Relative volume
2.8x 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
81
LAESMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+40.00%
against the close of 12/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/17/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 17.1% bigger, at +43.10%.
Month end +61.63% on 2024-12-31
Close before and after
$12.25 to $16.76 split-adjusted
Session open, high, low
$18.68, $19.15, $14.35
Opening gap
+52.49%
Close inside the session range
0.50 of the range, where 1.00 is the high
Session volume
3,986,857 shares, $66,819,723
Relative volume
16.7x 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
86
LAESMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+36.82%
against the close of 12/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/10/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
9.2x 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
90
RDZNMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+34.87%
against the close of 12/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads negative, stock rose 34.75%
1 calendar day from the pre-news close to the measured session
92
QBTSMore than one ranked move this month2+ ranked moves
+34.22%
against the close of 12/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 12/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
13.7x 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
100
GTIunder $25M todayAlso on the opposite board this monthon both boards
+32.67%
against the close of 12/02/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
It gave back the whole move and closed 33.47% below the pre-news price.
Month end -64.14% on 2024-12-31
Close before and after
$150.60 to $199.80 as traded
Session open, high, low
$179.40, $204.00, $156.00
Opening gap
+19.12%
Close inside the session range
0.91 of the range, where 1.00 is the high
Session volume
5,361 shares, $1,071,128
Relative volume
10.6x 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
NYSE and Nasdaq companies with a market capitalization of $5M or more, measured today, including the $5M to $25M band. 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.183 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.Exclude the $5M to $25M band
2 events were left out of this board because the vendor names the ticker as a preferred, a note, a depositary share or a fund rather than a company's common stock.
1 event was left out of this board because the price series changes basis between the baseline close and the measured one, so the two prices do not describe the same shares of the same company and their ratio measures a corporate action, or a change in what the ticker identifies, rather than a move.
1 event was left out of this board because the measured session set no price of its own, trading either nothing at all or barely moving on an ordinary day's volume, so the figure it would be ranked on is a price carried onto the tape rather than a close.
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 December 2024, the median gainer was 1.5% further above its pre-news close five sessions later; the largest catalyst group was Other Announcement, 36 of the 100 events, at a median of +60.5%.
Close-to-close change on the measured trading session, against the previous close.
NYSE and Nasdaq companies with a market capitalization of $5M or more, measured today, including the $5M to $25M band. 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.
Median change since the measured close as a share of the move
Day +1
100.0% of 100
6.0%given back, of 100
Day +5
93.9% of 99
1.5%further above baseline, of 99
Month end
95.8% of 96
6.1%given back, of 96
Month end falls before day +5 for 14 of these 96 events, so this row is not a later horizon than the one above it. 96 of the 100 events have a month-end close later than the measured session; 3 have it on the measured session itself, and 1 has no month-end close.
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 December 2024
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-market65.0%
Intraday13.0%
After hours22.0%
Volume against normal
Under 5x4 events, 4.1%
5x to 20x32 events, 32.7%
Over 20x62 events, 63.3%
2 events have too little trading history for a relative volume, and are not in the tiers above.
Industry
Pharmaceutical Preparations17 events, 17.0%
Biological Products, (no Diagnostic Substances)7 events, 7.0%
Biological Products, (no Disgnostic Substances)2 events, 2.0%
30 other industries, 34 events
Industry not known: 28.0%
2 events on this board carry the flag for a move that ran against its own release, too few to say whether the flag predicts anything.
Against November 2024
100 events in the comparable window.
November 2024 median +43.2%, selected from the 9,878 events in that month's eligible pool
December 2024 median +51.8%, 8.6 points above November 2024. December 2024's median is taken over the 100 ranked rows, selected from the 6,650 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 $5M or more, measured today, including the $5M to $25M band. 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.
