Is ALAB or SQ more profitable?

ALAB runs the higher net margin — ALAB at 30.74% versus SQ at -3.80%.

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

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 September 8, 2026. Differences are shown without an overall score or investment verdict.

ALAB

Astera Labs, Inc. Common Stock

$50.57B

$295.03TechnologyDelayed quote: Sep 8, 2026, 2:50 PM EDT

Block, Inc.

$51.73B

$88.67TechnologyAt close: Jan 24, 2025 (market close, ET)

Total return — ALAB vs SQ

growth of $100 · dividends reinvested · last 1y

ALAB +86.3% (+86.3%/yr)SQ +11.8% (+11.8%/yr)ALAB compounded faster over this window

ALAB SQ

ALAB vs SQ: by the numbers

•SQ is the larger company ($51.73B vs $50.57B market cap).
•ALAB is profitable (30.74% net margin) while SQ runs a net loss (-3.80%).

Metrics side by side

Valuation

Metric	ALAB	SQ
P/E ratio	152.91	N/A
Forward P/E	77.72	21.86
P/S ratio	47.07	2.35
P/B ratio	32.78	2.82
EV / EBITDA	197.81	38.29
FCF yield	0.49%	1.28%

Profitability

Metric	ALAB	SQ
Gross margin	75.13%	46.36%
Operating margin	22.75%	4.67%
Net margin	30.74%	-3.80%
ROE	21.41%	-4.32%
ROIC	15.47%	2.20%

Growth (annualized)

Metric	ALAB	SQ
Revenue CAGR (5Y)	N/A	9.47%
FCF CAGR (5Y)	N/A	56.53%
Total return CAGR (5Y)	N/A	4.50%

Frequently asked

Is ALAB or SQ more profitable?: ALAB runs the higher net margin — ALAB at 30.74% versus SQ at -3.80%.

Go deeper

Full ALAB analysis Full SQ analysis Interactive comparison tool

Dig into the metrics

Astera Labs, Inc. Common Stock P/E ratio Astera Labs, Inc. Common Stock ROE Block ROE Astera Labs, Inc. Common Stock operating margin Block operating margin Astera Labs, Inc. Common Stock revenue growth Block revenue growth Astera Labs, Inc. Common Stock free cash flow Block 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 September 8, 2026.