SITM · SiTime

The thesis

SiTime Corporation's timing chips for AI datacenters delivered a clean Q3 2026 report on 4 November 2026, with revenue and guidance both above Wall Street's forecasts, but the shares still closed at $444.45 on 10 November 2026, 50.7% below the $901.48 52-week high. The next evidence is Q4 revenue against the $331-341 million guidance, and whether analyst targets, which were cut by two firms after the report, stop falling.

SiTime reported Q3 revenue of $298.7 million, up 257% from $83.6 million a year earlier (company 8-K, 4 November 2026). The acquired Renesas timing business added $86.3 million. Core SiTime revenue excluding that business was $212.4 million, up 154%, above the company's $200-210 million guide, per Earnings Whispers. Whether organic growth supports the price is answered on the revenue line.

The story is well known: the story is well known, the growth numbers now confirm it, and the share price has fallen 35.4% over three months anyway. The 14-session relative strength index (RSI) is 42.0 on 10 November 2026, up from 27.5 on 28 October 2026.

Bullish and bearish views on SiTime Corporation

The bull case on SiTime Corporation (SITM), in brief: organic growth beat guidance. The bear case: price targets are being cut.

Bull case

• Organic growth beat guidance. Core revenue excluding the acquired business was $212.4 million, up 154% year over year, against a $200-210 million guide (Earnings Whispers, 4 November 2026). Core communications, enterprise and datacenter revenue grew 202%, the fourth straight quarter of faster growth after 158% in Q1 and 181% in Q2.
• Margins widened. Non-GAAP gross margin was 70.7% in Q3, up from 67.1% in Q2 and 64.5% in Q1. Non-GAAP operating margin was 43.4%, up from 34.0% in Q2 (Earnings Whispers, 4 November 2026).
• Guidance beat the consensus. Management guided Q4 revenue to $331-341 million and non-GAAP earnings per share to about $4.76. Analysts had expected $315.19 million and $3.72 (Benzinga headline, 4 November 2026). The company said it exited Q3 with an annualized revenue run rate above $1 billion.
• Some analysts see far higher prices. Rosenblatt raised its Buy target to $900 on 3 November 2026. UBS kept Buy with a $650 target and Needham kept Buy with a $600 target after the report (6 November 2026 and 5 November 2026 headlines). Seaport Global upgraded to Buy from Neutral on 6 November 2026.
• A three-for-one stock split is scheduled. Holders of record at the close on 3 December 2026 receive two additional shares per share, and split-adjusted trading starts 7 December 2026 (company 8-K). The split changes the share count and price per share, not the business.

Bear case

• Price targets are being cut. UBS lowered its target to $650 and Needham to $600 after the report (5 November 2026 and 6 November 2026 headlines). Seaport's new Buy rating carries a $425 target, which is below the $444.45 close on 10 November 2026.
• GAAP profit is small. GAAP net income was $4.4 million, or $0.14 per diluted share, in Q3, against non-GAAP net income of $130.3 million (company 8-K, 4 November 2026). GAAP gross margin was 51.6% against 70.7% non-GAAP, partly on deal-related charges.
• The balance sheet carries debt. Convertible senior notes were $1,319.1 million net against $324.3 million of cash and short-term investments on 30 September 2026 (company 8-K).
• A good report did not hold the price. Shares entered the release at $444.88 and were close to that level again on 10 November 2026, after trading as low as $414.82 on 2 November 2026 (Earnings Whispers). Three-month change was −35.4% as of 10 November 2026.
• Supply from large holders and insiders persists. MegaChips retained 3,020,000 shares after selling 400,000 at an average $779.50 on 14 May 2026. CEO Rajesh Vashist sold 12,000 shares on 9 September 2026 at a weighted average $603.47 (SEC Form 4).

Price setup

The adjusted close on 10 November 2026 was $444.45. The 52-week high is $901.48. Earnings Whispers puts the August peak at $762.65 on 7 August 2026 and the low before earnings at $414.82 (about $138.27 post-split) on 2 November 2026. The shares closed on 28 October 2026 at $501.18 (about $167.06 post-split).

The shares have traded between roughly $415 and $510 since mid-October. A close under the $414.82 low (about $138.27 post-split) would break that range. A close back above the 28 October 2026 close of $501.18 (about $167.06 post-split) would recover the pre-report level. Price levels in this note are quoted before the split on 7 December 2026 and will be restated in split-adjusted series.

Crowding evidence: two 2x leveraged single-stock funds referencing SiTime began trading 13 August 2026, and their daily rebalancing adds closing-auction volume on large-move days. Seaport's upgrade was accompanied by a reported 16% one-day rise in the shares (Earnings Whispers headline, 6 November 2026), which shows how sharply the price moves on analyst news.

Catalysts ahead

• 3 December 2026: Record date for the three-for-one stock split. Holders at the close receive two additional shares per share; the business is unchanged.
• 7 December 2026: Split-adjusted trading begins at market open. Per-share price falls to about one-third, so earlier levels must be restated.
• 11 November to 10 December 2026: SEC Form 4 insider filings after the Q3 report. Shows whether executives and large holders sell near $450 after the September sales near $600.

What would change the view

A daily close below $410 (about $136.67 post-split), under the $414.82 low (about $138.27 post-split) reached on 2 November 2026. Q4 2026 revenue below the $331 million low end of guidance, or non-GAAP gross margin below 69%, would also break the case.

The risks this note tracks, each with what would confirm it:

• Acquired Renesas revenue and transition services mask slowing growth in SiTime's own timing business. Confirmed by: core revenue excluding the acquired business growing slower than the 154% reported for Q3, or Q4 total revenue below $331 million.
• Analyst targets keep falling toward the share price, removing support for the valuation case. Confirmed by: further target cuts after UBS ($650) and Needham ($600), or more targets near Seaport's $425.
• Sector-wide chip selling continues regardless of company results. Confirmed by: a daily close below $410 while semiconductor peers also fall.
• Insider and large-holder supply meets weakness. Confirmed by: new Form 4 sales by executives, or further MegaChips sales from its remaining 3,020,000 shares.

What it trades with

SiTime sells timing chips into AI datacenters and communications equipment, so its shares have moved with chip-sector sentiment. Press coverage on 19 October 2026 described a chip-sector losing streak comparable to 2008, and the October drop looked sector-wide. The acquired Renesas timing business ($86.3 million of Q3 revenue) adds customers outside SiTime's own base. The company relies on Renesas transition services, per Earnings Whispers. Moves in large AI-chip names and optical suppliers are the nearest external reference for the shares' direction.