September 2024 Stock Losers 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
,
20
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.
OMEXMore than one ranked move this month2+ ranked moves
-89.40%
against the close of 09/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/06/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/12/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads positive, stock fell 73.02%
against the close of 09/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/23/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 1.8% bigger, at -58.93%.
Month end -57.14% on 2024-09-30
This month ended before the fifth session after the move.
Close before and after
$28.00 to $11.80 split-adjusted
Session open, high, low
$13.90, $14.10, $10.40
Opening gap
-50.36%
Close inside the session range
0.38 of the range, where 1.00 is the high
Session volume
286,673 shares, $3,382,741
Relative volume
67.7x 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
9
TBIOunder $25M todayAlso on the opposite board this monthon both boards
-55.26%
against the close of 09/10/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/12/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/12/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
27.1% of the drop was recovered five sessions later.
Month end -24.28% on 2024-09-30
Close before and after
$0.9641 to $0.6137 split-adjusted
Session open, high, low
$0.7000, $0.7074, $0.6137
Opening gap
-27.39%
Close inside the session range
0.00 of the range, where 1.00 is the high
Session volume
13,408,825 shares, $8,228,996
Relative volume
33.0x 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
16
PBMunder $25M todayMore than one ranked move this month2+ ranked moves
-34.99%
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 08/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 08/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/06/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/17/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/26/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 28.9% bigger, at -35.23%.
Month end -41.94% on 2024-09-30
Close before and after
$13.95 to $10.14 split-adjusted
Session open, high, low
$13.74, $13.74, $9.30
Opening gap
-1.51%
Close inside the session range
0.19 of the range, where 1.00 is the high
Session volume
61,859 shares, $627,065
Relative volume
15.0x 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
30
BNZIunder $25M todayMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
-27.18%
against the close of 09/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/26/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/06/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
31.5% of the drop was recovered five sessions later.
Month-end is not shown: no closing price is available for 2024-09-30.
Close before and after
$0.3811 to $0.2800 as traded
Session open, high, low
$0.4290, $0.4380, $0.2100
Opening gap
+12.57%
Close inside the session range
0.31 of the range, where 1.00 is the high
Session volume
502,678 shares, $140,750
Relative volume
31.3x 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
34
CURVMore than one ranked move this month2+ ranked moves
-26.50%
against the close of 09/10/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 23.9% bigger, at -32.68%.
Month end -37.50% on 2024-09-30
Close before and after
$0.7200 to $0.5301 split-adjusted
Session open, high, low
$0.7450, $0.8000, $0.4611
Opening gap
+3.47%
Close inside the session range
0.20 of the range, where 1.00 is the high
Session volume
2,752,951 shares, $1,459,339
Relative volume
23.4x 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
36
BNZIunder $25M todayMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
-26.19%
against the close of 09/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/25/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/16/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/25/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
19.3% of the drop was recovered five sessions later.
Month end -15.10% on 2024-09-30
This month ended before the fifth session after the move.
Close before and after
$12.45 to $9.65 split-adjusted
Session open, high, low
$10.47, $10.47, $9.25
Opening gap
-15.90%
Close inside the session range
0.33 of the range, where 1.00 is the high
Session volume
14,005,057 shares, $135,148,800
Relative volume
12.8x 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
43
OCTOAlso on the opposite board this monthon both boards
-22.19%
against the close of 09/23/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
16.7% of the drop was recovered five sessions later.
Month end -13.88% on 2024-09-30
Close before and after
$81.65 to $63.56 split-adjusted
Session open, high, low
$72.79, $73.50, $60.82
Opening gap
-10.85%
Close inside the session range
0.22 of the range, where 1.00 is the high
Session volume
30,925,241 shares, $1,965,608,318
Relative volume
13.7x 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
45
LASEAlso on the opposite board this monthon both boards
-22.07%
against the close of 09/23/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/25/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 08/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
96.9% of the drop was recovered five sessions later.
Month end -57.26% on 2024-09-30
Close before and after
$1,140.00 to $900.00 as traded
Session open, high, low
$1,200.00, $1,207.50, $832.50
Opening gap
+5.26%
Close inside the session range
0.18 of the range, where 1.00 is the high
Session volume
5,370 shares, $4,833,000
Relative volume
0.6x 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
51
CURVMore than one ranked move this month2+ ranked moves
-20.37%
against the close of 09/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/26/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 08/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/23/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/24/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
78.6% of the drop was recovered five sessions later.
Month end -4.63% on 2024-09-30
Close before and after
$0.6700 to $0.5419 as traded
Session open, high, low
$0.6500, $0.6899, $0.5300
Opening gap
-2.99%
Close inside the session range
0.07 of the range, where 1.00 is the high
Session volume
549,401 shares, $297,720
Relative volume
9.0x 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
61
LQRunder $25M todayAlso on the opposite board this monthon both boards
-18.99%
against the close of 09/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/25/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
12.7% of the drop was recovered five sessions later.
Month end -11.52% on 2024-09-30
Close before and after
$193.19 to $157.13 split-adjusted
Session open, high, low
$158.74, $163.48, $156.00
Opening gap
-17.83%
Close inside the session range
0.15 of the range, where 1.00 is the high
Session volume
10,904,819 shares, $1,713,474,209
Relative volume
8.3x 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
67
PBMunder $25M todayMore than one ranked move this month2+ ranked moves
-18.58%
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 11.8% bigger, at -20.77%.
Month end -35.90% on 2024-09-30
Close before and after
$582.81 to $474.50 split-adjusted
Session open, high, low
$508.09, $559.25, $457.64
Opening gap
-12.82%
Close inside the session range
0.17 of the range, where 1.00 is the high
Session volume
830 shares, $393,831
Relative volume
21.8x 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
68
OMEXMore than one ranked move this month2+ ranked moves
-18.21%
against the close of 09/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 100.1% bigger, at -36.43%.
Month end -40.89% on 2024-09-30
Close before and after
$1.40 to $1.15 split-adjusted
Session open, high, low
$1.29, $1.35, $1.01
Opening gap
-7.86%
Close inside the session range
0.40 of the range, where 1.00 is the high
Session volume
23,259,899 shares, $26,632,584
Relative volume
339.2x 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
69
RRMore than one ranked move this month2+ ranked moves
-18.11%
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/23/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/26/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 51.0% bigger, at -25.97%.
Month end -19.38% on 2024-09-30
This month ended before the fifth session after the move.
Close before and after
$61.92 to $51.27 split-adjusted
Session open, high, low
$62.00, $62.00, $46.62
Opening gap
+0.13%
Close inside the session range
0.30 of the range, where 1.00 is the high
Session volume
122,525 shares, $6,281,857
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
76
PBMunder $25M todayMore than one ranked move this month2+ ranked moves
-17.18%
against the close of 09/05/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/26/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/13/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 96.5% bigger, at -33.53%.
Month end -31.90% on 2024-09-30
Close before and after
$6.74 to $5.59 split-adjusted
Session open, high, low
$6.70, $6.83, $5.51
Opening gap
-0.59%
Close inside the session range
0.06 of the range, where 1.00 is the high
Session volume
200,219 shares, $1,119,224
Relative volume
3.2x 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
79
RRMore than one ranked move this month2+ ranked moves
-16.94%
against the close of 09/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 08/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 08/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 110.7% bigger, at -34.83%.
Month end -40.28% on 2024-09-30
Close before and after
$11.66 to $9.73 split-adjusted
Session open, high, low
$11.44, $11.67, $9.61
Opening gap
-1.90%
Close inside the session range
0.06 of the range, where 1.00 is the high
Session volume
562,440 shares, $5,474,791
Relative volume
1.2x 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
86
HCWCunder $25M todayMore than one ranked move this month2+ ranked moves
-16.50%
against the close of 09/19/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/09/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/26/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 60.5% bigger, at -26.25%.
Month end -16.19% on 2024-09-30
This month ended before the fifth session after the move.
Close before and after
$75.66 to $63.28 split-adjusted
Session open, high, low
$64.56, $64.89, $53.22
Opening gap
-14.67%
Close inside the session range
0.86 of the range, where 1.00 is the high
Session volume
10,489,903 shares, $663,801,062
Relative volume
15.7x 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
89
WISAunder $25M todayAlso on the opposite board this monthon both boards
-16.34%
against the close of 09/04/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 35.4% bigger, at -22.08%.
Month end -22.08% on 2024-09-30
Close before and after
$19.43 to $16.26 split-adjusted
Session open, high, low
$19.93, $19.93, $16.26
Opening gap
+2.57%
Close inside the session range
0.00 of the range, where 1.00 is the high
Session volume
94,826 shares, $1,541,871
Relative volume
4.6x 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
LUCYunder $25M todayAlso on the opposite board this monthon both boards
-16.13%
against the close of 09/20/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/18/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 56.7% bigger, at -25.00%.
Month end -15.95% on 2024-09-30same session
This month ended before the fifth session after the move.
Close before and after
$3.04 to $2.56 split-adjusted
Session open, high, low
$2.71, $2.84, $2.50
Opening gap
-10.86%
Close inside the session range
0.16 of the range, where 1.00 is the high
Session volume
42,663 shares, $109,004
Relative volume
6.3x 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
94
HCWCunder $25M todayMore than one ranked move this month2+ ranked moves
-15.87%
against the close of 09/17/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/11/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/25/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/03/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 08/30/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 09/27/2024session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the drop was 36.2% bigger, at -21.25%.
Month end -15.60% on 2024-09-30same session
This month ended before the fifth session after the move.
Close before and after
$0.7581 to $0.6398 split-adjusted
Session open, high, low
$0.7629, $0.7629, $0.6257
Opening gap
+0.63%
Close inside the session range
0.10 of the range, where 1.00 is the high
Session volume
3,042,924 shares, $1,946,863
Relative volume
6.8x 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
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.201 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
1 event was 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 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.
1 event was left out of this board because the measured session changed hands for less than $25,000 in total, so the percentage prices a handful of shares rather than a move anyone could have taken.
3 events were left out of this board because the ticker had not traded for more than 10 days before the measured session, so no comparable prior close exists.
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 September 2024, the median decliner was 6.7% deeper below its pre-news close five sessions later; the largest catalyst group was Earnings, 24 of the 100 events, at a median of -19.3%.
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 drop
Day +1
97.0% of 100
2.2%deeper below baseline, of 100
Day +5
99.0% of 98
6.7%deeper below baseline, of 98
Month end
96.7% of 91
12.7%deeper below baseline, of 91
Month end falls before day +5 for 20 of these 91 events, so this row is not a later horizon than the one above it. 91 of the 100 events have a month-end close later than the measured session; 5 have it on the measured session itself, and 4 have 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 September 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-market52.0%
Intraday7.0%
After hours41.0%
Volume against normal
Under 5x18 events, 18.8%
5x to 20x45 events, 46.9%
Over 20x33 events, 34.4%
4 events have too little trading history for a relative volume, and are not in the tiers above.
Industry
Pharmaceutical Preparations10 events, 10.0%
Biological Products, (no Diagnostic Substances)6 events, 6.0%
Services-prepackaged Software6 events, 6.0%
Finance Services4 events, 4.0%
General Industrial Machinery & Equipment, Nec3 events, 3.0%
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 August 2024
100 events in the comparable window.
August 2024 median -31.9%, selected from the 8,066 events in that month's eligible pool
September 2024 median -20.7%, 11.2 points shallower than August 2024. September 2024's median is taken over the 100 ranked rows, selected from the 5,382 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.
