Thursday's session: gap up and gap down stock in the S&P500 index

By Mill Chart - Last update: Jan 8, 2026

Wondering what's happening in today's session regarding gap up and gap down stocks? Explore the S&P500 index on Thursday to uncover the stocks that are gapping in the S&P500 index.


gap

Top gap down stocks

TickerChangeComment
SNDK-8.78%Today, SANDISK CORP's (NASDAQ:SNDK) stock experienced a 8.78% fall to $322.51 with a 9.37% gap. In the last month the stock gained 56.81%.
ADSK-5.71%AUTODESK INC's (NASDAQ:ADSK) shares recorded a 5.71% decline to $277.02, with a notable 6.9% gap during today's session.
FIX-5.33%During Thursday's session, COMFORT SYSTEMS USA INC's (NYSE:FIX) stock price decreased by 5.33% to $979.91 with a significant 6.54% gap. In the last 3 months the share price increased with 26.84%.
DDOG-5.02%Unfortunate news for DATADOG INC - CLASS A's (NASDAQ:DDOG) stock! It registered a 5.02% decline to $134.35 in today's session, accompanied by a 8.24% gap.
WDC-4.79%WESTERN DIGITAL CORP's (NASDAQ:WDC) shares suffered a 4.79% decline to $190.3 during Thursday's session, accompanied by a 10.97% gap. Shareholders saw the stock price going 73.18% higher in the past 3 months.
ANET-3.92%ARISTA NETWORKS INC's (NYSE:ANET) shares suffered a 3.92% decline to $124.98 during Thursday's session, accompanied by a 5.6% gap.
STX-3.73%SEAGATE TECHNOLOGY HOLDINGS's (NASDAQ:STX) shares recorded a 3.73% decline to $296.77, with a notable 8.31% gap during today's session. Shareholders saw the stock price going 43.79% higher in the past 3 months.
DELL-3.42%DELL TECHNOLOGIES -C's (NYSE:DELL) shares experienced a 3.42% decline to $115.96 during Thursday's session, accompanied by a 6.13% gap. Shareholders saw the stock price going 20.26% lower in the past 3 months.
CEG-3.12%CONSTELLATION ENERGY's (NASDAQ:CEG) stock price is declining with 3.12% to a price of $328.06 with a gap of 7.34%. Yesterday the company had a press release: Constellation Completes Calpine Transaction, Powering America’s Clean Energy Future.
TER-3.03%TERADYNE INC's (NASDAQ:TER) shares fell 3.03% to $215.73 with a gap of 6.07%. In the last 3 months the stock gained 68.44%.

For the full top loser list go to our gap down stocks screener.

COMFORT SYSTEMS USA INC

NYSE:FIX (3/4/2026, 7:00:00 PM)

After market: 1432.6 +2.22 (+0.16%)

1430.38

+39.22 (+2.82%)


SEAGATE TECHNOLOGY HOLDINGS

NASDAQ:STX (3/4/2026, 6:56:48 PM)

After market: 378.25 +3.24 (+0.86%)

375.01

+17.39 (+4.86%)


WESTERN DIGITAL CORP

NASDAQ:WDC (3/4/2026, 7:00:57 PM)

After market: 264 +2.7 (+1.03%)

261.3

+10.69 (+4.27%)


DELL TECHNOLOGIES -C

NYSE:DELL (3/4/2026, 7:00:00 PM)

After market: 147.19 +0.09 (+0.06%)

147.1

+1.92 (+1.32%)


TERADYNE INC

NASDAQ:TER (3/4/2026, 6:57:39 PM)

After market: 305.2 0 (0%)

305.2

+0.98 (+0.32%)


SANDISK CORP

NASDAQ:SNDK (3/4/2026, 7:04:41 PM)

After market: 602.15 +3.09 (+0.52%)

599.06

+33.65 (+5.95%)


AUTODESK INC

NASDAQ:ADSK (3/4/2026, 6:07:47 PM)

After market: 258 +0.11 (+0.04%)

257.89

+4.49 (+1.77%)


ARISTA NETWORKS INC

NYSE:ANET (3/4/2026, 7:02:47 PM)

After market: 137 +2.17 (+1.61%)

134.83

+10.23 (+8.21%)


DATADOG INC - CLASS A

NASDAQ:DDOG (3/4/2026, 6:18:50 PM)

After market: 118.33 0 (0%)

118.33

+6.56 (+5.87%)


CONSTELLATION ENERGY

NASDAQ:CEG (3/4/2026, 6:43:58 PM)

After market: 323 +0.15 (+0.05%)

322.85

-2.02 (-0.62%)



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