Astera Labs, Inc. Common Stock (ALAB) vs Block, Inc. (SQ)

SQ leads on 6 of 11 compared metrics.

A side-by-side comparison of Astera Labs, Inc. Common Stock and Block, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 13, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

Astera Labs, Inc. Common Stock logo
ALAB
Astera Labs, Inc. Common Stock
$62.93B
$367.15Technology
Block, Inc. logo
SQ
Block, Inc.
$51.73B
$88.67Technology

Total return — ALAB vs SQ

growth of $100 · last 1y
ALAB +86.3%SQ +8.9%ALAB compounded faster
50100150200Start $1002025$186$109
ALAB SQ

ALAB vs SQ: by the numbers

  • •ALAB is the larger company ($62.93B vs $51.73B market cap).
  • •SQ trades at the lower earnings multiple (49.81 vs 248.07 P/E).
  • •ALAB is profitable (26.72% net margin) while SQ runs a net loss (-2.04%).

Which is better, ALAB or SQ?

Metric tally: ALAB 5 · SQ 6

It depends on what you're optimizing for:

ValueSQ(lower P/E)
QualityALAB(higher ROIC)

Valuation

MetricALABSQ
P/E ratio248.0749.81●
Forward P/E85.3215.90●
P/S ratio66.422.35●
P/B ratio44.522.82●
PEG ratio—696.22
EV / EBITDA237.6126.61●
FCF yield0.52%1.28%●

Profitability

MetricALABSQ
Gross margin75.99%●44.85%
Operating margin22.36%●4.93%
Net margin26.72%●-2.04%
ROE17.91%●-2.30%
ROIC12.40%●-12.82%

Growth (annualized)

MetricALABSQ
Revenue CAGR (5Y)—13.19%
EPS CAGR (5Y)—34.72%
FCF CAGR (5Y)—64.00%
Total return CAGR (5Y)—4.50%

Frequently asked

Which is better, ALAB or SQ?
It depends on your goal. value: SQ (lower P/E); quality: ALAB (higher ROIC). Across all compared metrics, SQ leads 6 to 5.
Is ALAB or SQ cheaper?
On trailing earnings, SQ is cheaper: ALAB trades at a 248.07 P/E and SQ at 49.81.
Is ALAB or SQ more profitable?
ALAB runs the higher net margin — ALAB at 26.72% versus SQ at -2.04%.

Go deeper

Full ALAB analysisFull SQ analysisInteractive comparison tool

Dig into the metrics

Astera Labs, Inc. Common Stock P/E ratioBlock P/E ratioAstera Labs, Inc. Common Stock dividend yieldBlock dividend yieldAstera Labs, Inc. Common Stock ROEBlock ROEAstera Labs, Inc. Common Stock operating marginBlock operating marginAstera Labs, Inc. Common Stock revenue growthBlock revenue growthAstera Labs, Inc. Common Stock free cash flowBlock free cash flow

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified June 13, 2026.