Coherent Surges 9.1%, Adding About $6 Billion in One Session

COHR Coherent

Regular session

3:15pm ET

$358.47

+9.10% open $328.57

A 9.1% move to $358.47 adds roughly $6 billion of market value to a $70 billion company in one session. Swings this wide in optics names rarely stay one-sided, so keep an eye on the stock from here.

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Coherent added roughly $6 billion of market value in one session, a move that puts it among stocks reacting to something investors consider materially significant.

The stock climbed steadily through the day and closed at $358.47, with buying sustained into the final hours.

Sources

COHR company overview

Mentioned: COHR

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COHR Coherent Corp.

Q4 2026

4:10pm ET

EPS

$1.74

est $1.62 +7.6%

Revenue

$2.05B

est $1.98B +3.3%

The AI optics trade just got its receipt: datacenter and communications revenue jumped 59% year over year. Management guided Q1 revenue to as much as $2.4 billion, well above the quarter just reported, with co-packaged optics shipping in the second half of 2026.

COHR Coherent

Regular session

Aug 10, 11:00am ET

$335.55

-12.43% open $383.18

A 12.4% slide from a $383 open wipes out the optical AI premium buyers paid last week, and it lands a day before Lumentum reports. Anyone treating datacenter optics as a one-way trade gets a read on whether this is company-specific or sector-wide by Tuesday's close.

Biggest movers · At the close Aug 7, 4:10pm ET

Gainers

ABNBAirbnb$174.56+15.1%
SOUNSoundHound AI$8+12.9%
COHRCoherent$377.06+12.8%
TEMTempus AI$51.3+11.2%
NVTSNavitas Semiconductor$13.71+10.5%

Losers

TTDTrade Desk$13.83-21.8%
MARAMarathon Digital$9.99-6.2%
CIFRCipher Mining$17.13-5.9%
MNSTMonster Beverage$90.6-3.8%
SNDKSanDisk$1,223.34-2.8%

Earnings split the session at the close: Airbnb's raised revenue outlook lifted it 15.1% while Trade Desk lost nearly a quarter of its value. Travel, optics and AI names carried the session; ad tech and crypto miners absorbed the damage.

Biggest movers · At the close Aug 4, 4:10pm ET

Gainers

PLTRPalantir$162.55+29.4%
AAOIApplied Optoelectronics$132.64+20.4%
ARMArm$280.61+17.4%
FNFabrinet$534.46+17.2%
COHRCoherent$330.85+14.8%

Losers

BRKRBruker$51.17-20.4%
VERXVertex$11.74-12.4%
CIFRCipher Mining$21.25-12.1%
AMCAMC Entertainment$2.63-7.7%
NVONovo Nordisk$44.09-6.4%

Palantir's 29% close pulled the entire AI complex with it, from Arm to the optical names supplying the data centers. Everything outside that trade got sold, with Bruker down 20% and Novo Nordisk sliding again.

Biggest movers · At the close Aug 3, 4:10pm ET

Gainers

AAOIApplied Optoelectronics$110.13+16.8%
CIFRCipher Mining$25.07+12.3%
HIMSHims & Hers$30.76+10.8%
COHRCoherent$291.01+10.7%
LMNDLemonade$53.28+10.3%

Losers

MNSTMonster Beverage$93.15-3.4%
FANGDiamondback Energy$198.01-2.4%
CVXChevron$192.77-2.1%
SPOTSpotify$489.7-2.0%
FFord$14.48-1.4%

Money left oil and autos for optics today: Applied Optoelectronics closed up 16.8% at $110.13, with Coherent right behind it, while Chevron, Diamondback and Ford all finished red. Four of the top five gainers sit in AI infrastructure or high-growth consumer names.

COHR Coherent

Regular session

Aug 3, 12:00pm ET

$285.00

+12.21% open $253.99

A 12.2% jump to $285 in a single session puts Coherent back in the AI networking spotlight, where optical transceiver demand is setting the tone for the whole optics group. Anyone waiting for a pullback just watched the entry price move.

Biggest movers · At the close Jul 31, 4:10pm ET

Gainers

AMZNAmazon$271.41+15.3%
GOOGGoogle$356.02+6.7%
COHRCoherent$265.69+6.7%
GOOGLGoogle$355.78+6.6%
AAOIApplied Optoelectronics$96.02+6.6%

Losers

NVONovo Nordisk$46.8-9.3%
LCIDLucid$7.37-9.3%
AAPLApple$305.42-8.4%
RIVNRivian$15.51-7.9%
APPAppLovin$388.85-3.7%

Amazon exploded 15% at the close as big tech earnings season hits its inflection point, but Apple tumbled 8% signaling investor caution on how the mega-cap rally will sustain.

Biggest movers · At the close Jul 21, 4:10pm ET

Gainers

AAOIApplied Optoelectronics$118.18+14.7%
DOCNDigitalOcean$133.76+12.3%
SNDKSanDisk$1,554.3+11.7%
CIFRCipher Mining$22.81+11.1%
COHRCoherent$316.42+10.9%

Losers

AMCAMC Entertainment$2.27-7.7%
DUOLDuolingo$124.72-6.8%
VERXVertex$12.06-6.4%
IOTSamsara$36.41-5.5%

AI infrastructure and optical networking stocks charged into the close, with Applied Optoelectronics and Coherent leading a 14.7% and 10.9% surge. AMC Entertainment fell 7.7% as retail favoritism faded.

Biggest movers · At the close Jun 23, 4:10pm ET

Gainers

AXONAxon Enterprise$434.66+6.0%
RBRKRubrik$74.33+5.4%
GTLBGitLab$26.97+4.4%
DUOLDuolingo$132.21+3.9%
NETCloudflare$225.29+3.2%

Losers

AMCAMC Entertainment$2.15-22.1%
AAOIApplied Optoelectronics$147.81-13.7%
SNDKSanDisk$1,972.04-13.3%
ONON Semiconductor$117.28-10.8%
COHRCoherent$382.14-10.2%

AMC got hammered 22% at the close while semiconductors rolled over, but Axon Enterprise broke ranks with a 6% surge as enterprise software bucked the sell-off.

Biggest movers · At the close Jun 22, 4:10pm ET

Gainers

SMCISuper Micro Computer$35.52+15.8%
COHRCoherent$424.16+8.9%
ONON Semiconductor$131.32+8.0%
FNFabrinet$615.04+7.2%
NVONovo Nordisk$46.05+6.6%

Losers

CAVACava$81.55-8.6%
RIVNRivian$15.16-8.3%
ARMArm$407.85-7.2%
PLTRPalantir$119.69-6.8%

Super Micro Computer surged 15.83% at the bell while semiconductor darlings Arm and Palantir crashed, signaling a sharp rotation away from Big Tech consensus picks.

COHR Coherent

Jun 15, 7:30pm ET

$10K invested in 1999 Now worth $2.66M

266× return · 26-year hold

Coherent has delivered 266x returns to early believers in photonics and laser technology over more than a quarter century, with just this month crossing the $2.5M milestone.