Gapping S&P500 stocks in Thursday's session

By Mill Chart - Last update: Oct 16, 2025

Let's have a look at the S&P500 gap up and gap down stocks in today's session.


gap

Gap down stocks

TickerChangeComment
MMC-7.46%Unfavorable news for MARSH & MCLENNAN COS's (NYSE:MMC) stock! It witnessed a 7.46% decline to $188.63 in today's session, along with a 8.74% gap. yesterday the company released their earnings. Earlier today the company had a press release: Marsh McLennan Reports Third Quarter 2025 Results.
FFIV-7.31%Unfortunate news for F5 INC's (NASDAQ:FFIV) stock! It registered a 7.31% decline to $306.56 in today's session, accompanied by a 10.95% gap. Shareholders saw the stock price going 27.9% higher is the past 6 months.
HPE-7.25%HEWLETT PACKARD ENTERPRISE's (NYSE:HPE) shares declined by 7.25% to $23.23, showing a 14.82% gap in today's session. A press release (HPE details strategic and execution priorities to drive enhanced shareholder value at HPE Securities Analyst Meeting 2025) was released earlier today.
AJG-5.27%ARTHUR J GALLAGHER & CO's (NYSE:AJG) shares suffered a 5.27% decline to $280.55 during Thursday's session, accompanied by a 8.27% gap.
BRO-4.67%BROWN & BROWN INC's (NYSE:BRO) shares declined by 4.67% to $89.58, showing a 6.24% gap in today's session.
AON-4.21%AON PLC-CLASS A's (NYSE:AON) shares declined by 4.21% to $340.81, showing a 5.52% gap in today's session.
CB-3.77%In today's session, CHUBB LTD's (NYSE:CB) stock witnessed a 3.77% fall to $267.81 with a 5.43% gap.
WTW-3.6%Unfortunate news for WILLIS TOWERS WATSON PLC's (NASDAQ:WTW) stock! It registered a 3.6% decline to $327.19 in today's session, accompanied by a 5.29% gap.
HIG-3.51%In today's session, HARTFORD INSURANCE GROUP INC's (NYSE:HIG) stock price decreased by 3.51% to $124.15, exhibiting a 5.09% gap.
ACGL-3.14%Unfortunate news for ARCH CAPITAL GROUP LTD's (NASDAQ:ACGL) stock! It registered a 3.14% decline to $86.76 in today's session, accompanied by a 5.73% gap.

Our gap down stocks screener will show you the full list.

ARTHUR J GALLAGHER & CO

NYSE:AJG (3/10/2026, 7:00:15 PM)

After market: 211.72 0 (0%)

211.72

-6.06 (-2.78%)


BROWN & BROWN INC

NYSE:BRO (3/10/2026, 8:09:14 PM)

After market: 68.58 0 (0%)

68.58

-2.46 (-3.46%)


MARSH & MCLENNAN COS

NYSE:MMC (1/13/2026, 8:04:00 PM)

After market: 182.7 0 (0%)

182.7

-2.93 (-1.58%)


ARCH CAPITAL GROUP LTD

NASDAQ:ACGL (3/10/2026, 8:04:48 PM)

After market: 96.19 0 (0%)

96.19

+0.57 (+0.6%)


HARTFORD INSURANCE GROUP INC

NYSE:HIG (3/10/2026, 8:04:00 PM)

After market: 137.25 0 (0%)

137.25

-0.7 (-0.51%)


CHUBB LTD

NYSE:CB (3/10/2026, 8:10:13 PM)

After market: 325.24 0 (0%)

325.24

+0.84 (+0.26%)


WILLIS TOWERS WATSON PLC

NASDAQ:WTW (3/10/2026, 8:00:03 PM)

After market: 289.26 0 (0%)

289.26

-5.41 (-1.84%)


F5 INC

NASDAQ:FFIV (3/10/2026, 8:23:34 PM)

After market: 286.14 0 (0%)

286.14

+0.81 (+0.28%)


AON PLC-CLASS A

NYSE:AON (3/10/2026, 8:06:13 PM)

After market: 320.96 0 (0%)

320.96

-11.88 (-3.57%)


HEWLETT PACKARD ENTERPRISE

NYSE:HPE (3/10/2026, 8:04:00 PM)

Premarket: 21.17 +0.07 (+0.33%)

21.1

-0.71 (-3.26%)



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