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 (79.5 vs 151.6); year to date, Astera Labs leads (+66.8% vs +49.3%).
Side by side
| ALAB | COHR | |
|---|---|---|
| Market cap | $56B | $64B |
| Price | $282.65 | $288.14 |
| Today | +1.8% | +4.6% |
| Return YTD | +66.8% | +49.3% |
| Return 1Y | +55.0% | +206.4% |
| P/E | 151.6 | 79.5 |
| P/S | 46.6 | 9.0 |
| P/B | 32.4 | 5.9 |
Data as of 2026-08-26 · updates daily after U.S. close
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.
See where ALAB and COHR sit in the full AI & digital infrastructure map: every segment from suppliers to end markets.Open the AI value chain →