Coherent (COHR) drops 4.4% after earnings beat as investors take profits

As seen on the 24/7 Wall St. homepage on August 13, 2026.

COHR Coherent

Regular session

Aug 13, 9:45am ET

$340.00

-4.40% open $355.64

Down 4.4% to $340 in the session right after Coherent's Q4 2026 earnings beat, so buyers are treating good numbers as a chance to take profits in an AI-optics leader. Keep an eye on whether $340 holds.

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Coherent slid to $340 the day after reporting Q4 2026 earnings that cleared expectations, a classic sell-the-news move as investors who bought ahead of results locked in gains.

Markets had already priced in strong results for a company sitting at the intersection of artificial intelligence and optical networking, so a beat gives new buyers little reason to step in here.

Sources

COHR company overview

Mentioned: COHR

Related Market Updates

Biggest movers · At the close Aug 18, 4:10pm ET

Gainers

DUOLDuolingo$140.9+8.3%
SPOTSpotify$520.71+5.7%
ULTAUlta Beauty$519.44+5.3%
VERXVertex$13.06+4.7%
ASANAsana$9.24+4.6%

Losers

FNFabrinet$477.37-20.3%
CIFRCipher Mining$15.97-13.7%
AAOIApplied Optoelectronics$134.59-13.1%
BIDUBaidu$90.62-13.0%
COHRCoherent$309.03-12.0%

Fabrinet closed down 20% at $477.37, the deepest single-day loss in a 110-name priority list, with optical peers Applied Optoelectronics and Coherent also off double digits. Duolingo led all gainers at 8.3%.

Biggest movers · At the close Aug 17, 4:10pm ET

Gainers

SNDKSanDisk$1,773.38+8.1%
COHRCoherent$351.61+7.9%
FNFabrinet$596.63+4.6%
DOCNDigitalOcean$135.86+4.6%
FUTUFutu Holdings$109.67+4.2%

Losers

CLOVClover Health$4.25-7.7%
TTDTrade Desk$13.39-5.3%
SOUNSoundHound AI$7.06-5.0%
OPENOpendoor Technologies$3.48-4.4%
LMNDLemonade$50.33-4.4%

Nearly 16 points separated the best and worst names in a 110-stock board at Monday's close, with SanDisk up 8% at $1,773 and Clover Health down almost 8%. Hardware led, small-cap growth lagged.

Portfolio concentration NVIDIA

Aug 14

96.1% in the top 5 names · 8 long positions disclosed

INTCINTEL CORP
47.3%
SPACE EXPLORATION TECHN CORP
33.1%
CRWVCOREWEAVE INC
7.4%
COHRCOHERENT CORP
4.8%
NOKNOKIA CORP
3.5%

As of Jun 30, 2026 · disclosed Aug 14, 2026 · ~45 days stale — long positions only.

96% of NVIDIA's disclosed equity book sits in five names, with a rival chipmaker as the single largest holding as of June 30. Only eight positions total, so every stake here is a deliberate strategic bet.

Biggest movers · At the close Aug 13, 4:11pm ET

Gainers

WDAYWorkday$208.09+18.7%
SNDKSanDisk$1,525.29+13.5%
GPROGoPro$0.64+11.0%
ACHRArcher Aviation$6.92+9.9%
DOCUDocuSign$62.86+8.2%

Losers

COHRCoherent$328.25-7.7%
CIFRCipher Mining$16.54-7.4%
MARAMarathon Digital$9.29-3.7%
HIMSHims & Hers$29.09-2.9%
LCIDLucid$6.36-2.8%

Workday closed 18.7% higher at $208.09, the biggest single-session move across our 110-stock priority list. Software names took four of the five top spots, while Coherent and Cipher Mining each shed more than 7%.

COHR Coherent Corp.

Q4 2026

Aug 12, 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 12, 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.

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.