SITM vs SWKS: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 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: SWKS 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. SITM and SWKS 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 SITM and SWKS 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.

SiTime Corporation is a fabless semiconductor company that created and dominates the precision-timing category. Its products, MEMS (micro-electro-mechanical systems) oscillators, resonators and clock chips, generate and manage the timing signals that keep electronics synchronized, and it positions them as smaller, more rugged and more programmable replacements for the century-old quartz-crystal parts they compete against. End markets span AI data centers, communications and enterprise infrastructure, automotive and ADAS, aerospace and defense, industrial, and mobile and consumer devices.

Full SITM guide

Skyworks Solutions designs and manufactures analog and mixed-signal semiconductors, with a core specialty in radio-frequency (RF) chips: the amplifiers, filters, and front-end modules that let smartphones and other devices transmit and receive wireless signals across cellular, Wi-Fi, and other bands. Its products go into smartphones, tablets, wearables, connected-home gear, automotive systems, cellular infrastructure, industrial, defense, and aerospace applications. Historically the company has been best known as a critical RF supplier to Apple's iPhones, which makes its results sensitive to a single customer and to the broader premium-smartphone cycle.

Full SWKS guide

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

• SITM drivers: AI-datacenter timing content; MEMS displacing quartz.
• SWKS drivers: Apple and premium-smartphone content; Broad Markets diversification.

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: The dominant risk is valuation: at a market cap near $19B to $21B on roughly $327M of trailing revenue, the stock trades at an extreme price-to-sales multiple and reports GAAP losses, so any growth stumble could compress the multiple sharply. For SWKS, the dominant risk is customer and end-market concentration: a large share of revenue depends on one major mobile customer, so any loss of content, design-slot changes, or a weak iPhone cycle can hit results hard.

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 SITM if you believe its drivers more; SWKS 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 SITM and SWKS guides.

SITM. SiTime is growing revenue rapidly (Q1 2026 up about 88% year over year) and is profitable on a non-GAAP basis, but it still posts GAAP losses, which is why its trailing P/E is negative. With a market cap many times its trailing revenue, the shares carry a very high price-to-sales multiple that assumes sustained high growth. The July 2026 Renesas acquisition adds scale and debt and changes the revenue base going forward.

SWKS. Figures are qualitative and tied to the asOf date; verify live numbers before acting. Much of Skyworks' near-term valuation debate hinges on two things that are hard to model: the trajectory of premium-smartphone demand at its largest customer, and whether the Qorvo merger closes on the expected early-2027 timeline and delivers its synergy target. Analyst price targets have drifted higher on merger optimism and Apple content, but that view depends on both the deal and the smartphone cycle.

Headline figures (approximate, JULY 2026): SITM shows revenue (ttm, fy2025) ~$327M, q1 2026 revenue ~$114M (+88% YoY), non-gaap gross margin (q1 2026) ~64.5%, non-gaap eps (q1 2026) ~$1.44; SWKS shows business US-based maker of RF and analog/mixed-signal semiconductors; a key RF supplier to Apple's iPhones, segments Mobile (smartphone RF, heavily tied to one large customer) and Broad Markets (Wi-Fi, automotive, industrial, IoT, infrastructure), revenue scale Multi-billion-dollar annual revenue; management has guided to higher revenue on stable smartphone demand and early Android recovery, pending merger Agreed Oct 27, 2025 to combine with Qorvo in a ~$22 billion cash-and-stock deal; expected to close early 2027.

SITM and SWKS 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 SITM and SWKS exposure against your real portfolio. It is not an investment adviser.