--- title: "Silicon Motion's audited profit halved on 131% revenue growth, and an automated alert called it a miss" description: "Silicon Motion's operating business doubled its margin while a $152.7 million investment swing halved the audited profit, and two alerts read the same quarter as a miss and a beat. The call this morning is where the portfolio, the unnamed dispute and the conversion price get answered." publisher: "The Inference" section: "Chips" published: 2026-10-29T15:14:22.946Z modified: 2026-10-29T15:14:22.946Z canonical: https://theinference.org/article/silicon-motion-s-audited-profit-halved-on-131-revenue-growth-and-an-automated-alert-called-it-a-miss language: en keywords: "Earnings, NAND, Storage, Semiconductors, Stocks" --- # Silicon Motion's audited profit halved on 131% revenue growth, and an automated alert called it a miss > Silicon Motion's operating business doubled its margin while a $152.7 million investment swing halved the audited profit, and two alerts read the same quarter as a miss and a beat. The call this morning is where the portfolio, the unnamed dispute and the conversion price get answered. [Silicon Motion reported after the close on October 28](https://siliconmotiontechnologycorporation.gcs-web.com/news-releases/news-release-details/silicon-motion-announces-results-quarterly-period-ended/), so today is the first full session on the numbers and the earnings call is at 8 a.m [1][2]. Eastern: revenue up 131% year on year to $560.2 million, and audited profit down 52% to $65.3 million [1][2]. The shares rose 7.6% anyway, and the two market-facing alerts disagreed on what the quarter was [3][4]. MarketBeat's automated alert held the $1.91 GAAP earnings figure against a $3.30 non-GAAP consensus and [called an earnings miss](https://www.marketbeat.com/instant-alerts/price-silicon-motion-technology-nasdaq-simo-stock-breaks-above-two-hundred-day-moving-average-after-earnings-miss-2026-10-29/); Investing.com's wire [called a beat of $1.05 per ADS](https://www.investing.com/news/earnings/silicon-motion-adr-earnings-beat-by-105-revenue-topped-estimates-4981452) [3][4]. Both compared numbers that describe different quarters. ## The gap between the two earnings figures is one line The reconciliation is one line. In the second quarter, [Silicon Motion](https://theinference.org/markets/companies/silicon-motion) booked a $74.7 million gain on its investment portfolio; in the third, it booked a $78.0 million loss on the same line, a $152.7 million swing sitting below operating income [1][2]. Operating income itself rose to $162.6 million [1][2]. Strip out those marks along with stock compensation and an unnamed "dispute-related expense," and earnings jump to $4.35 per ADS [1][2]. Leave them in, and the audited profit halved on 24% revenue growth [1][2]. The alerts printed a miss and a beat, and neither explained the swing. [Securities.io did print the two investment lines](https://www.securities.io/silicon-motion-q3-revenue-rises-131-to-560-2-million/); that reconciliation is the story. *Chart: **One quarter, two profits: GAAP halved while the adjusted figure rose** Column chart comparing GAAP and non-GAAP net income for Silicon Motion in Q2 2026 and Q3 2026.* *Net income in $ million, GAAP versus non-GAAP, from Silicon Motion's Q3 2026 results release reconciliation. Source: Silicon Motion results release, October 29, 2026. [1]* ## The operating business underneath is genuinely strong Non-GAAP operating margin doubled year on year to 32.1%, Ferri and boot drive sales rose roughly 2,580% from a year earlier, and the company guides fourth-quarter revenue of $588 million to $616 million on [NAND makers pulling supply out of phones and PCs to feed AI storage](https://theinference.org/article/sandisk-s-93-9-billion-floor-is-contracted-but-samsung-and-sk-hynix-add-nand-layers-in-china) [1][2]. Silicon Motion, which supplies more SSD controllers than anyone, is positioned to collect on that shift [1]. But read the cash before the momentum decides for you. The quarter's cash rose from $182 million to $954 million mostly because of $1.1 billion of 0% convertible notes due 2031, not operations [1]. Operating cash flow was negative $256 million as inventories grew to $871 million [1]. ## Three questions the call should be pressed on And the fourth-quarter guide excludes what the release defines only as "legal, consulting, and other fees and resolution costs related to the dispute," referring to "the dispute" without ever saying what it is [1]. That, the contents of the investment portfolio that cost $78 million this quarter, and the converts' omitted conversion price are the three things the 8 a.m. call should be pressed on [1]. For a holder, the two figures decide the trade together: buy the operating momentum if the marks and the dispute are one-offs, trim if either recurs. ## Takeaway Silicon Motion's 131% revenue growth and doubled operating margin are real, but a $152.7 million investment swing, an undefined dispute-related expense and $1.1 billion of 0% converts decide whether the audited profit halving is a one-off or a pattern. ## Sources 1. [Silicon Motion Technology Corporation, Announces Results for the Quarterly Period Ended September 30, 2026, 29 October 2026](https://siliconmotiontechnologycorporation.gcs-web.com/news-releases/news-release-details/silicon-motion-announces-results-quarterly-period-ended/) 2. [Securities.io, Silicon Motion Q3 Revenue Rises 131% to $560.2 Million, 29 October 2026](https://www.securities.io/silicon-motion-q3-revenue-rises-131-to-560-2-million/) 3. [MarketBeat, Silicon Motion Technology (NASDAQ:SIMO) Stock Breaks Above Two Hundred Day Moving Average After Earnings Miss, 29 October 2026](https://www.marketbeat.com/instant-alerts/price-silicon-motion-technology-nasdaq-simo-stock-breaks-above-two-hundred-day-moving-average-after-earnings-miss-2026-10-29/) 4. [Investing.com, Silicon Motion ADR earnings beat by $1.05, revenue topped estimates, 29 October 2026](https://www.investing.com/news/earnings/silicon-motion-adr-earnings-beat-by-105-revenue-topped-estimates-4981452) --- Silicon Motion's audited profit halved on 131% revenue growth, and an automated alert called it a miss — The Inference. Canonical: https://theinference.org/article/silicon-motion-s-audited-profit-halved-on-131-revenue-growth-and-an-automated-alert-called-it-a-miss