The Filing Desk

Rambus vs T1 Energy

Rambus RMBS · T1 Energy TE · Semiconductors

T1 Energy reported revenue of $755 million in fiscal 2025, about the same as Rambus' $708 million in fiscal 2025. Rambus' revenue grew 27.1% in its latest year, and T1 Energy's grew 25572.8%. Rambus had an operating margin of 36.8%, against -31.1% at T1 Energy. Free cash flow was $333 million at Rambus and $17 million at T1 Energy.

Side by side

RambusT1 Energy
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$708M$755M
Revenue growth27.1%25,572.8%
Revenue growth a year, last 5 years23.5%—
Gross margin79.6%7.4%
Operating margin36.8%−31.1%
Net margin32.6%−48.7%
Free cash flow$333M$17M
Free cash flow margin47.1%2.2%
Return on capital34.3%−31.5%
Net debt to EBITDA——
Dividends and buybacks$7M$0M
Change in diluted share count0.2%23.6%
Last close$74.53$2.36
P/E at the last close30.7×—
Insider trades, last 12 monthssold $20.5 millionsold $190.2 million
Piotroski F-score5 of 96 of 9
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
RambusT1 Energy
Operating margin
Percent of revenue
RambusT1 Energy
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
RambusT1 Energy

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the Rambus and T1 Energy pages.