ADEA vs IDCC: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of September 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: ADEA is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. ADEA and IDCC share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined ADEA and IDCC exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Adeia Inc, the licensing business spun out of the former Xperi (with roots in Rovi, TiVo, and DTS heritage IP), monetizes one of the larger patent portfolios in media and semiconductors. It licenses technology across Pay-TV, streaming and social media, consumer electronics, and increasingly semiconductor packaging and interconnect, signing multi-year agreements with names such as AMD and Microsoft. The model is capital-light: a fixed research and licensing cost base generates recurring royalty revenue plus periodic up-front, non-recurring fees, which is why adjusted EBITDA margins run around 60 percent.

Full ADEA guide

InterDigital is a wireless and video technology research and patent licensing company. The company develops fundamental technology used in cellular standards (5G, 6G, prior generations), video coding standards (HEVC, VVC), and other communications and media technologies. The company contributes patents to standard-setting organizations and earns recurring licensing revenue from device manufacturers (smartphone OEMs, consumer electronics manufacturers) that implement those standards.

Full IDCC guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• ADEA drivers: Semiconductor licensing expansion; Recurring royalty base and cash generation.
• IDCC drivers: 5G licensing scale-up; Video standards licensing expansion.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Revenue is lumpy because non-recurring up-front license fees can swing quarterly results, making any single period hard to extrapolate. For IDCC, licensing disputes can suspend royalty receipts during periods of litigation.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick ADEA if you believe its drivers more; IDCC if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the ADEA and IDCC guides.

ADEA. Adeia reiterated full-year 2026 revenue guidance of roughly $395 million to $435 million and adjusted EBITDA of about $213 million to $245 million. Because a large share of value comes from cash flow and contracted backlog rather than reported growth, investors often weigh it on free-cash-flow yield and licensing-renewal momentum. Non-recurring license fees ($38.5 million in Q1 2026) can make headline quarterly figures volatile.

IDCC. InterDigital's valuation reflects the high-margin licensing business model. P/E and earnings can be volatile due to lumpy licensing settlements; multi-year contracted licensing provides smoother underlying economics. Price-to-cash-flow may be more useful than trailing P/E.

Headline figures (approximate, July 2026): ADEA shows revenue (ttm) ~$395M, q1 2026 revenue ~$104.8M (up ~20% YoY), q1 2026 net income ~$22.8M (~$0.20 diluted EPS), adjusted ebitda margin ~60%; IDCC shows revenue (ttm) ~$700 million, operating margin ~55% (licensing model), net income (ttm) ~$350 million, eps (ttm) ~$13.00.

ADEA and IDCC are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined ADEA and IDCC exposure against your real portfolio. It is not an investment adviser.