Is FISN or UPWK more profitable?

UPWK runs the higher net margin — FISN at 0.00% versus UPWK at 12.93%.

Deep Fission, Inc. (FISN) vs Upwork Inc. (UPWK)

A side-by-side comparison of Deep Fission, Inc. and Upwork Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 3, 2026. Differences are shown without an overall score or investment verdict.

FISN

Deep Fission, Inc.

$439M

$7.28IndustrialsDelayed quote: Sep 3, 2026, 3:14 PM EDT

UPWK

Upwork Inc.

$1.14B

$9.21IndustrialsDelayed quote: Sep 3, 2026, 3:15 PM EDT

Total return — FISN vs UPWK

growth of $100 · dividends reinvested · last 1y

FISN -52.1% (-52.1%/yr)UPWK +12.2% (+12.2%/yr)UPWK compounded faster over this window

FISN UPWK

FISN vs UPWK: by the numbers

•UPWK is the larger company ($1.14B vs $439M market cap).
•UPWK is profitable (12.93% net margin) while FISN runs a net loss (0.00%).

Metrics side by side

Valuation

Metric	FISN	UPWK
P/E ratio	N/A	11.88
Forward P/E	N/A	6.50
P/S ratio	N/A	1.49
P/B ratio	3.89	1.92
EV / EBITDA	N/A	7.22
FCF yield	N/A	16.98%

Profitability

Metric	FISN	UPWK
Gross margin	0.00%	77.21%
Operating margin	0.00%	15.10%
Net margin	0.00%	12.93%
ROE	-107.56%	16.66%
ROIC	-72.19%	8.71%

Growth (annualized)

Metric	FISN	UPWK
Revenue CAGR (5Y)	N/A	12.31%
FCF CAGR (5Y)	N/A	85.69%
Total return CAGR (5Y)	N/A	-27.40%

Frequently asked

Is FISN or UPWK more profitable?: UPWK runs the higher net margin — FISN at 0.00% versus UPWK at 12.93%.

Go deeper

Full FISN analysis Full UPWK analysis Interactive comparison tool

Dig into the metrics

Upwork P/E ratio Deep Fission ROE Upwork ROE Deep Fission operating margin Upwork operating margin Deep Fission revenue growth Upwork revenue growth Deep Fission free cash flow Upwork free cash flow

Deep Fission & Upwork appear in these rankings

Highest FCF Yield Stocks Lowest P/E Ratio Stocks

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 3, 2026.