undamentalytics Newsletter

Pulmonx vs Sight Sciences

Pulmonx is the larger business, with $90.5m of revenue in fiscal 2025 against $77.4m for Sight Sciences (1.2 times as much). Pulmonx grew faster (8.0% against -3.1%). Sight Sciences kept more of each dollar of sales as profit: a net margin of -49.7% against -59.7%. Sight Sciences carries less debt relative to equity (66.3% against 78.5%).

Latest fiscal yearPulmonxLUNG, 2025Sight SciencesSGHT, 2025
Revenue $90.5m $77.4m
Revenue growth 8.0% -3.1%
Net income −$54.0m −$38.4m
Operating margin -59.3% -48.0%
Net margin -59.7% -49.7%
Return on equity -77.2% -50.7%
Free cash flow −$32.8m −$29.9m
Cash $69.8m $92.0m
Total debt $42.5m $42.4m
Debt to equity 78.5% 66.3%
Dividend per share — —
Dividend yield — —
Share buybacks — —
Employees 296 186
Market value $114m $516m
Price vs our value range — —
Moat score 35 (Weak) 35 (Weak)
Insider trades, 12 months 0 buys, 55 sales 2 buys, 38 sales

Each figure is from the company's latest annual report and links to the page it comes from. Fiscal years can end on different dates. Market value and the value verdict use the delayed price shown on the stock pages. Not a recommendation.

Go deeper

Figures from each company's latest annual report filed with the SEC (10-K or 20-F), as reported, with the fiscal year shown. Not investment advice. How we read filings: methodology.