SiTime (SITM): Revenue +127%, Stock +27% - And We Still Say HOLD

SiTime Corporation (SITM) Q2 2026 — Q2 revenue $157.4M vs $146.5M est, up 127% YoY and 38.6% sequentially - above the top of the $140-150M guide. Non-GAAP EPS $2.34 vs a $1.95 bar and a $1.85-$2.00 guide. Non-GAAP gross margin 67.1%, operating margin 34.0%. GAAP net income $18.2M ($0.66 diluted) - the largest in company history. Q3 guided to $285-295M and $3.50-$3.65. Stock +26.58% to $687.50. The bar was NOT cut: SiTime beat the top end of every guided line. There is nothing wrong with this quarter, so this episode is about the price. Revenue grew 127% organically to $157.4M at a 67.1% non-GAAP gross margin, and SiTime beat the TOP end of its own May guidance on revenue, margin and EPS - the bar was not cut. But three things almost nobody will report. First, $12,545 thousand of interest income over 28,061 thousand diluted shares is 44.7 cents a share - larger than the 39-cent beat - and the $1.9 billion that earned it went out the door on July 1 to pay for the Renesas timing business. Second, Renesas took 3,558,691 SiTime shares as part of the price and filed a Schedule 13D - not a passive 13G - on July 9 disclosing 11.9% and a board seat, while SiTime depends on Renesas transition services for manufacturing and test. Third, first-half stock compensation expense was $61.8M but cash paid for RSU tax withholding was $87.3M - 123% of the $71.0M of operating cash flow. Free cash flow was $44.5M; net of that withholding it is MINUS $42.8M. THE CALL: HOLD (3/5, EXCEPTIONAL COMPANY. THE PRICE ALREADY OWNS THE PLAN) — base-case value ~$535.0 vs ~$687.5 today. KEY METRICS: - CALL: HOLD 3/5, fair value ~$535 vs the $687.50 tape (-22%). Street: 9 analysts, unanimous Buy, $838 avg target. We DIFFER. - Rev $157.4M +127% vs $146.5M est. Non-GAAP EPS $2.34 vs $1.95. GM 67.1%. Guide was $140-150M and $1.85-2.00 - beat the top. - 30,071,036 shares at $687.50 = $20.7B cap (not $18.1B). EV $21.6B = 18.6x the $1.16B run-rate; 48x annualised non-GAAP EPS. What to watch: UP: a Q3 print above the $295M top end with acquired gross margin holding near 70%, or clear evidence the Renesas clock portfolio is cross-selling into SiTime's 10,000-customer base. BEAR: any slip in the Renesas transition services for manufacturing and test, non-GAAP opex over guidance a second time, or datacenter growth decelerating below 50%. Also on YouTube: @ChargedAlpha DISCLAIMER: For informational and educational purposes only. Not financial advice. Do your own research before any investment decision.