Gapping S&P500 stocks in Thursday's session

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 down stocks

Ticker	Change	Comment
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.