Astera Labsvs.Coherent
ALAB vs COHR · both in Data centers, part of the AI & digital infrastructure value chain: Servers, networking, optics and data center capacity that tie AI infrastructure together.
Astera Labs and Coherent are similar in size by market cap; Coherent trades at the lower P/E (73.6 vs 160.7); year to date, Astera Labs leads (+129.8% vs +81.3%).
Side by side
| ALAB | COHR | |
|---|---|---|
| Market cap | $59.4B | $59.2B |
| Price | $342.21 | $312.62 |
| Today | −1.4% | +3.4% |
| Return YTD | +129.8% | +81.3% |
| Return 1Y | +80.2% | +194.6% |
| Since June 26, 2026 | −12.6% | −17.9% |
| P/E | 160.7 | 73.6 |
| P/S | 49.4 | 8.3 |
| P/B | 34.4 | 5.4 |
Data as of 2026-10-09 · updates daily after U.S. close
Since June 26, 2026: the change in the closing price, from the daily closes Sectivia records itself since that date.
The two companies
Astera LabsALAB
Signal integrity becomes a real constraint at AI-server speeds. Astera Labs sells the fix: Aries PCIe retimers, Taurus and Leo connectivity, Scorpio fabric switches.
Full ALAB profile →CoherentCOHR
Makes the transceivers and lasers that turn data into light for the hop between AI servers.
Full COHR profile →More ALAB & COHR comparisons
Other head-to-heads in the Data centers segment.