The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • Talen Energy is the larger company, worth $16.0B, about 3.3 times Oklo.

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasureOKLOTLN
Market cap$4.8B$16.0B
Share price$34.70$378.57
Revenue (last fiscal year)—$2.6B
Free cash flow (last fiscal year)-$115M$606M
Revenue growth, last year—+18.6%
Revenue growth per year, last 5 fiscal years—-5.1%
Operating margin—2.6%
Net margin—-5.4%
Return on equity-4.7%-11.4%
P/E (trailing)——
Price / free cash flow—39.1x
EV / EBITDA—30.5x
FCF growth the price implies—8.6%
Dividend yield——
Debt / equity0.03x8.31x
Fundamental gradeDF
Superinvestors holding it16
Insider purchases, last 12 months00

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

Oklo

YearRevenueFree cash flowOp. margin
2022———
2023—-$16M—
2024—-$39M—
2025—-$115M—

Talen Energy

YearRevenueFree cash flowOp. margin
2014$4.6B$46M8.7%
2015$4.5B$317M-0.87%
2022$3.1B-$45M7.8%
2024$2.1B$171M10.7%
2025$2.6B$606M-3.5%

Where the revenue comes from

Oklo

No segment breakdown reported.

Talen Energy · by segments, 2025

PJM$2.5B94%
Other$161M6%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open OKLO in Investingly

Questions

Which is bigger, Oklo or Talen Energy?

Talen Energy (TLN), at $16.0B against $4.8B.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.