SiTime Q1 Earnings Call Highlights

Key Points

• SiTime reported Q1 revenue of $113.6 million, up 88% year‑over‑year, with non‑GAAP gross margin of 64.5%, operating margin of 28% and EPS rising to $1.44.
• Growth was driven by the Communications, Enterprise & Data Center (CED) segment, which grew 158% YoY to $75.7M as AI inference and higher in‑datacenter bandwidth increased timing content and ASPs, supported by new products like the Elite 2 Super‑TCXO and demand for 1.6 Tb optical modules and CPO designs.
• SiTime raised 2026 revenue growth guidance to at least 80%, guided Q2 revenue of $140–$150M, said the Renesas timing business acquisition remains on track, and finished the quarter with a strong cash position of $789M.

SiTime NASDAQ: SITM reported a sharp year-over-year increase in first-quarter 2026 revenue and profitability, with management attributing the performance primarily to accelerating demand for precision timing in AI infrastructure and data center networking. On the company’s earnings call, CEO Rajesh Vashist said the year began with “a very strong start to 2026,” driven by AI infrastructure and “significantly increased demand for precision timing.”

Q1 revenue jumps 88% as CED drives growth

SiTime delivered first-quarter revenue of $113.6 million, up 88% from the year-ago period, according to Vashist and CFO Beth Howe. Vashist said earnings per share increased “five-fold” to $1.44 from $0.26, while non-GAAP gross margin reached 64.5% and operating margin was 28%.

Howe said results were “essentially flat” sequentially versus Q4, which she noted was “significantly better than anticipated at the beginning of the quarter,” primarily due to stronger-than-expected AI data center demand.

By end market, Howe broke out the quarter as follows:

• Communications, enterprise, and data center (CED): $75.7 million (66.6% of revenue), up 158% year-over-year and 17% sequentially.
• Automotive, industrial, and aerospace & defense: $21.2 million (18.7% of revenue), up 51% year-over-year.
• Mobile, IoT, and consumer: $16.7 million (14.7% of revenue), down 1% year-over-year; the company’s largest consumer customer contributed $10.2 million.

Vashist highlighted CED as the primary growth engine, noting it grew 158% year-over-year and marked “our eighth consecutive quarter of triple-digit percentage growth.” He added that the company’s “book-to-bill is growing with pull-through from the channel,” keeping inventories at what he called the desired target.

AI inference and higher bandwidth increase timing content and ASPs

Management repeatedly pointed to AI inference infrastructure and data center networking bandwidth as the two main drivers of demand. Responding to UBS analyst Tim Arcuri, Vashist said CED momentum is coming from “the inference infrastructure, all the XPUs, the switches,” as well as “the networking bandwidth within the data center,” including optical modules and connectivity.

Vashist said inference systems require substantially more timing content than training systems, stating that newer XPU-based inference infrastructure “needs 2x-4x more timing content per system.” He also discussed utilization trends, noting GPU utilization in inference workloads is “now 20%-40% and is targeted to get to 50%-60%,” and argued that synchronization is critical to improving utilization.

Needham analyst Quinn Bolton asked about the increased precision timing requirements in inference workloads. Vashist said the push for higher utilization, lower latency, and higher throughput is tied to performance requirements such as “stability,” “jitter,” “phase noise reduction,” and “synchronization.” He added that demand is being supported not only by unit growth but also by higher-priced products, including the company’s new Elite 2 Super-TCXO family, which he said delivers “up to 3x better synchronization performance compared to Elite.”

On the networking side, Vashist said hyperscalers are increasing bandwidth inside the data center, and he expects meaningful adoption of 1.6 Tb optical modules in 2026. He said higher frequencies and resilient performance requirements are pushing demand toward advanced oscillators “at a higher price than those used in 800G,” while the company still expects “continued strong shipment” for 400G and 800G oscillators for at least the next two years. He also said discussions with customers indicate “even greater strength” in co-packaged optics (CPO), noting timing content can be “up to 3x higher” in some CPO switch designs.

Margins expand on mix and cost improvements; OpEx rises with investment

Howe said first-quarter gross margin of 64.5% rose 7.1 percentage points year-over-year, driven about evenly by favorable product mix and by product cost improvements and better manufacturing absorption on higher revenue. She attributed the mix benefit to stronger CED revenue, which she said carries higher-than-average gross margin, combined with a lower mix of consumer products.

Operating expenses were $41.5 million, consisting of $21.5 million in R&D and $20 million in SG&A. Howe said the expense level reflected “intentional investments to support our growth,” including higher headcount and variable compensation tied to revenue, plus continued investment in the company’s roadmap.

Operating income was $31.8 million, up $29.8 million year-over-year, and operating margin expanded from 3% a year earlier to 28%. Howe reported non-GAAP net income of $38.1 million and said interest and other income was $7.1 million.

Balance sheet: inventory builds with growth; liquidity remains strong

Howe said accounts receivable ended the quarter at $55 million, with days sales outstanding of 44 days, up from 36 days in Q4 as “revenue linearity normalized.” Inventory increased to $91.1 million from $81.6 million in Q4, which Howe said was “in line with revenue growth.” Cash flow from operations rose to $31.2 million, more than double the year-ago level of $15.0 million, and the company ended Q1 with $789 million in cash and short-term investments.

Guidance raised; Renesas timing business acquisition remains on track

Looking ahead, Howe raised the company’s full-year view, saying SiTime is increasing its 2026 revenue growth expectations to at least 80%, citing the “depth of our order book” and improved visibility, “particularly in CED.”

For the second quarter, the company guided for:

• Revenue: $140 million to $150 million (up more than 100% year-over-year)
• Gross margin: approximately 65% ±1 point
• Operating expenses: $46 million to $47 million
• Interest income: approximately $5 million
• Share count: approximately 27.5 million shares
• Non-GAAP EPS: $1.85 to $2.00

Howe said the outlook “does not assume any benefit” from the planned acquisition of Renesas’ timing business because the deal has not closed. In Q&A, management said the acquisition integration planning is progressing and that cost modeling is “panning out kind of roughly where we thought it would be,” with “no unexpected surprises,” while noting expected investments such as CapEx to “refresh and modernize” equipment.

Vashist said customer feedback on the acquisition has been “almost universally positive,” calling the product portfolios complementary—SiTime’s oscillator business alongside the clocking business from the Renesas timing division. He also said SiTime expects to invest more in engineering, marketing, and field support around the acquired business.

On gross margin through the year, Howe said mix could “modulate” margins, as consumer becomes a larger portion of the mix in the second half. Still, she said the company expects gross margins to remain “above that 60% level.”

Vashist also addressed supply chain questions, saying capacity is “very solid,” with MEMS chips sourced from Bosch and analog chips on older nodes sourced mostly from TSMC. He noted occasional backend challenges tied to OSAT volumes but said issues were within “usual execution” and solvable. He also said the company has made changes around backend automation and the use of AI in test programs and characterization that improved productivity “with less CapEx than would typically be needed.”

In closing remarks, Vashist said the company reached elements of its long-term financial model “much quicker, stronger than we ever thought,” and reiterated confidence in the company’s trajectory as it enters “next phase of growth from a position of strength.”

About SiTime NASDAQ: SITM

SiTime Corporation is a fabless semiconductor company specializing in silicon timing solutions that leverage micro-electromechanical systems (MEMS) technology as an alternative to traditional quartz crystals. Its portfolio of programmable oscillators, resonators, clock generators, jitter attenuators and network synchronizers addresses precision timekeeping requirements across a wide range of electronic systems. By integrating MEMS resonators with advanced mixed-signal control circuitry, SiTime's products offer enhanced reliability, resistance to shock and vibration, and a smaller footprint compared with conventional quartz devices.

The company's timing devices serve diverse end markets, including telecommunications infrastructure, data center and enterprise networking, consumer electronics, automotive systems, industrial automation, and aerospace and defense applications.

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