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
,
19
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.
KLTOMore than one ranked move this month2+ ranked moves
+787.80%
against the close of 06/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 261.9% bigger, at +2514.30%.
Month end +694.84% on 2025-06-30same session
This month ended before the fifth session after the move.
Close before and after
$4.27 to $33.90 split-adjusted
Session open, high, low
$15.00, $34.36, $12.38
Opening gap
+251.70%
Close inside the session range
0.98 of the range, where 1.00 is the high
Session volume
110,196,702 shares, $3,735,668,198
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
3
SRMAlso on the opposite board this monthon both boards
+533.79%
against the close of 06/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/20/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/23/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/17/2025session 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
7
EYENMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+134.68%
against the close of 06/16/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 64.5% bigger, at +221.55%.
Month end +249.49% on 2025-06-30
Close before and after
$2.97 to $6.97 as traded
Session open, high, low
$3.06, $8.21, $3.06
Opening gap
+3.03%
Close inside the session range
0.76 of the range, where 1.00 is the high
Session volume
29,938,045 shares, $208,668,174
Relative volume
23.1x 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
8
HUSAAlso on the opposite board this monthrelease reads negativeon both boards
+119.19%
against the close of 06/12/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads negative, stock rose 119.19%
against the close of 06/20/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 15.7% bigger, at +131.73%.
Month end +131.73% on 2025-06-30
Close before and after
$21.02 to $44.95 as traded
Session open, high, low
$40.63, $45.39, $37.76
Opening gap
+93.29%
Close inside the session range
0.94 of the range, where 1.00 is the high
Session volume
6,741,757 shares, $303,041,977
Relative volume
35.4x 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
10
ONMDAlso on the opposite board this monthon both boards
+100.65%
against the close of 06/23/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/05/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/16/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/03/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
597.5x 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
15
PSTVMore than one ranked move this month2+ ranked moves
+68.45%
against the close of 06/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/04/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
49.1x 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
18
XTIAAlso on the opposite board this monthon both boards
+65.57%
against the close of 06/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/25/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 304.0% bigger, at +244.52%.
Month end +192.21% on 2025-06-30
This month ended before the fifth session after the move.
Close before and after
$11.09 to $17.80 split-adjusted
Session open, high, low
$20.00, $25.20, $14.24
Opening gap
+80.38%
Close inside the session range
0.32 of the range, where 1.00 is the high
Session volume
14,140,537 shares, $251,701,559
Relative volume
196.4x 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
20
KLTOMore than one ranked move this month2+ ranked moves
+56.92%
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/16/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
23.5x 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
22
GNSMore than one ranked move this monthrelease reads negative2+ ranked moves
+55.41%
against the close of 06/25/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Buyback / DividendRelease reads negative, stock rose 55.41%
Five sessions later the move was 70.7% bigger, at +94.59%.
Month end +83.78% on 2025-06-30
This month ended before the fifth session after the move.
Close before and after
$0.7400 to $1.15 split-adjusted
Session open, high, low
$0.6850, $1.31, $0.6050
Opening gap
-7.43%
Close inside the session range
0.77 of the range, where 1.00 is the high
Session volume
39,424,969 shares, $45,338,714
Relative volume
14.1x 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
23
URGNMore than one ranked move this month2+ ranked moves
+51.78%
against the close of 06/11/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/20/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/04/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
27.6x 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
27
TGEAlso on the opposite board this monthon both boards
+49.26%
against the close of 06/16/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 114.0% bigger, at +99.10%.
Month end +258.22% on 2025-06-30
Close before and after
$1.33 to $1.94 split-adjusted
Session open, high, low
$1.66, $1.99, $1.57
Opening gap
+25.19%
Close inside the session range
0.88 of the range, where 1.00 is the high
Session volume
27,403,274 shares, $53,162,352
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
30
IMABAlso on the opposite board this monthon both boards
+46.09%
against the close of 06/02/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 29.9% bigger, at +59.11%.
Month end +47.23% on 2025-06-30
Close before and after
$29.64 to $43.13 split-adjusted
Session open, high, low
$40.00, $43.97, $36.86
Opening gap
+34.95%
Close inside the session range
0.88 of the range, where 1.00 is the high
Session volume
6,320,263 shares, $272,592,943
Relative volume
10.9x 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
32
URGNMore than one ranked move this month2+ ranked moves
+43.39%
against the close of 06/05/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/04/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 47.2% bigger, at +58.81%.
Month end +15.41% on 2025-06-30
Close before and after
$3.18 to $4.45 split-adjusted
Session open, high, low
$4.73, $6.92, $4.15
Opening gap
+48.74%
Close inside the session range
0.11 of the range, where 1.00 is the high
Session volume
136,896,984 shares, $609,191,579
Relative volume
345.8x 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
35
GNSMore than one ranked move this month2+ ranked moves
+38.07%
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/12/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/16/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/23/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/25/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/18/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/11/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/16/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 10.4% bigger, at +37.06%.
Month end +58.46% on 2025-06-30
Close before and after
$4.02 to $5.37 split-adjusted
Session open, high, low
$5.60, $6.02, $5.10
Opening gap
+39.30%
Close inside the session range
0.29 of the range, where 1.00 is the high
Session volume
1,788,264 shares, $9,602,978
Relative volume
184.5x 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
45
DFDVMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+32.68%
against the close of 06/05/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/03/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
25.3x 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
48
HSDTAlso on the opposite board this monthrelease reads negativeon both boards
+31.36%
against the close of 06/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Other AnnouncementRelease reads negative, stock rose 31.36%
against the close of 06/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/02/2025session 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
1 calendar day from the pre-news close to the measured session
51
GNSMore than one ranked move this month2+ ranked moves
+30.55%
against the close of 06/23/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 455.5% bigger, at +169.71%.
Month end +154.73% on 2025-06-30
This month ended before the fifth session after the move.
Close before and after
$0.5339 to $0.6970 split-adjusted
Session open, high, low
$0.5371, $0.7200, $0.4874
Opening gap
+0.60%
Close inside the session range
0.90 of the range, where 1.00 is the high
Session volume
32,506,929 shares, $22,657,330
Relative volume
11.6x 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
52
EYENMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+30.17%
against the close of 06/20/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/18/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/09/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 98.8% bigger, at +56.27%.
Month end +15.04% on 2025-06-30
Close before and after
$0.3929 to $0.5041 split-adjusted
Session open, high, low
$0.5997, $0.6213, $0.4910
Opening gap
+52.63%
Close inside the session range
0.10 of the range, where 1.00 is the high
Session volume
94,620,861 shares, $47,698,376
Relative volume
65.8x 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
58
PSTVMore than one ranked move this month2+ ranked moves
+28.16%
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/05/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/23/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/09/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/17/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
30.6x 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
71
IMRXAlso on the opposite board this monthon both boards
+24.74%
against the close of 06/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/05/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/03/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/11/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/18/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/17/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Leadership Changecatalyst from a later release the same session
against the close of 06/03/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/06/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 54.7% bigger, at +35.87%.
Month end +19.57% on 2025-06-30
Close before and after
$2.76 to $3.40 split-adjusted
Session open, high, low
$3.43, $3.58, $3.20
Opening gap
+24.28%
Close inside the session range
0.53 of the range, where 1.00 is the high
Session volume
1,901,107 shares, $6,463,764
Relative volume
43.1x 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
80
IPAMore than one ranked move this month2+ ranked moves
+22.38%
against the close of 06/04/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/02/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/27/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/02/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/16/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/18/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/02/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 21.7% bigger, at +26.40%.
Month end +23.62% on 2025-06-30
Close before and after
$27.01 to $32.87 split-adjusted
Session open, high, low
$31.46, $33.21, $30.01
Opening gap
+16.46%
Close inside the session range
0.89 of the range, where 1.00 is the high
Session volume
708,090 shares, $23,274,918
Relative volume
14.1x 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
89
CRMDAlso on the opposite board this monthon both boards
+21.68%
against the close of 06/20/2025session 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 9.48% below the pre-news price.
Month end -9.48% on 2025-06-30
Close before and after
$13.61 to $16.56 split-adjusted
Session open, high, low
$16.74, $17.43, $15.75
Opening gap
+23.00%
Close inside the session range
0.48 of the range, where 1.00 is the high
Session volume
7,091,502 shares, $117,435,273
Relative volume
5.7x 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
90
IPAMore than one ranked move this month2+ ranked moves
+21.57%
against the close of 06/11/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/24/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/10/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 05/30/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/02/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/02/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 42.5% bigger, at +30.02%.
Month end +10.65% on 2025-06-30
Close before and after
$4.13 to $5.00 split-adjusted
Session open, high, low
$4.83, $5.15, $4.16
Opening gap
+16.83%
Close inside the session range
0.85 of the range, where 1.00 is the high
Session volume
9,933,528 shares, $49,667,640
Relative volume
15.1x 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
96
DFDVMore than one ranked move this monthAlso on the opposite board this month2+ ranked moveson both boards
+20.72%
against the close of 06/13/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/02/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/25/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
against the close of 06/25/2025session 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 +24.61%.
Month end +43.27% on 2025-06-30
This month ended before the fifth session after the move.
Close before and after
$51.30 to $61.80 split-adjusted
Session open, high, low
$51.00, $62.40, $51.00
Opening gap
-0.58%
Close inside the session range
0.95 of the range, where 1.00 is the high
Session volume
17,446 shares, $1,078,163
Relative volume
2.7x 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
100
CAPRAlso on the opposite board this monthon both boards
+20.44%
against the close of 06/23/2025session reconstructedSession detailMarket cap is not shown on months older than a year, because only today's figure exists.
Five sessions later the move was 28.7% bigger, at +26.30%.
Month end +29.30% on 2025-06-30
This month ended before the fifth session after the move.
Close before and after
$7.68 to $9.25 split-adjusted
Session open, high, low
$7.90, $9.35, $7.82
Opening gap
+2.86%
Close inside the session range
0.93 of the range, where 1.00 is the high
Session volume
8,782,120 shares, $81,234,610
Relative volume
4.3x 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
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.669 smaller events this month are held out of this month's eligible pool; switch to include them.207 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
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 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.
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 June 2025, the median gainer was 5.2% further above its pre-news close five sessions later; the largest catalyst group was Other Announcement, 33 of the 100 events, at a median of +26.7%.
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.
Median change since the measured close as a share of the move
Day +1
98.0% of 99
5.1%given back, of 99
Day +5
92.9% of 99
5.2%further above baseline, of 99
Month end
90.0% of 90
4.3%given back, of 90
Month end falls before day +5 for 15 of these 90 events, so this row is not a later horizon than the one above it. 90 of the 100 events have a month-end close later than the measured session; 9 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 June 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-market71.0%
Intraday10.0%
After hours19.0%
Volume against normal
Under 5x18 events, 18.2%
5x to 20x35 events, 35.4%
Over 20x46 events, 46.5%
1 event has too little trading history for a relative volume, and is not in the tiers above.
Industry
Pharmaceutical Preparations19 events, 19.0%
Biological Products, (no Diagnostic Substances)5 events, 5.0%
Finance Services5 events, 5.0%
Surgical & Medical Instruments & Apparatus4 events, 4.0%
Services-prepackaged Software3 events, 3.0%
Aircraft2 events, 2.0%
36 other industries, 40 events
Industry not known: 22.0%
5 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 May 2025
100 events in the comparable window.
May 2025 median +39.8%, selected from the 8,427 events in that month's eligible pool
June 2025 median +30.7%, 9.1 points below May 2025. June 2025's median is taken over the 100 ranked rows, selected from the 4,787 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.
