Coherent Q4 2026: Datacenter Revenue Surges 59%

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.

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The AI optical buildout is now carrying Coherent's whole business: Datacenter and Communications delivered 79% of total sales in the fiscal 2026 fourth quarter, on revenue that beat expectations. Ignore this and you miss the clearest read on how fast hyperscaler interconnect spending is compounding.

That segment grew 59% year over year as AI datacenters shift from copper to optical connectivity, with margins expanding alongside the volume.

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CEO Jim Anderson said the company enters fiscal 2027 with exceptional customer demand, naming co-packaged optics shipping in the second half of 2026 and optical circuit switches entering revenue in the first half of 2027.

Guidance for the fiscal 2027 first quarter sits above the quarter just reported, and a groundbreaking with NVIDIA in Sherman, Texas signals the capacity buildout is still accelerating.

Sources

Mentioned: COHR

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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.

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.