IN Brief:
- SiTime reported Q2 revenue of $157.4 million, 127% higher than a year earlier.
- Communications, enterprise, and data-centre demand grew rapidly before the Renesas timing acquisition entered the accounts.
- The completed acquisition adds more than 550 clocking products and access to over 10,000 customers.
SiTime reported second-quarter revenue of $157.4 million, 127% above the same period last year and almost 39% higher than the first quarter, as demand for semiconductor timing devices increased across communications, enterprise, and data-centre systems. The result was recorded before the timing business acquired from Renesas became part of SiTime’s accounts.
GAAP gross profit reached $99.1 million, equivalent to a 63% margin, while GAAP net income was $18.2 million. On the company’s non-GAAP measure, gross margin reached 67.1%. The scale of the improvement is substantial compared with the $69.5 million of revenue recorded in Q2 2025 and $113.6 million in the preceding quarter.
SiTime said every segment grew by at least 50% year on year, while its communications, enterprise, and data-centre business increased by 181%. That mix places much of the current expansion around infrastructure requiring increasingly precise clock distribution, synchronisation, and frequency control rather than a broad consumer-electronics recovery.
Timing components occupy a relatively small physical area inside many systems, but their electrical role becomes more demanding as interface speeds increase. Network switches, optical modules, accelerators, radios, processors, and data converters depend on stable clock references, while jitter and phase noise consume an increasing share of the signal margin at higher data rates.
Large AI systems multiply that problem across many links. Accelerators communicate through high-speed electrical and optical networks, and synchronisation has to remain controlled despite temperature changes, vibration, power-supply noise, and dense packaging. MEMS timing devices compete with established quartz-based solutions by integrating resonators with semiconductor electronics and offering programmable behaviour across different operating requirements.
The Q2 figures predate a major change in SiTime’s portfolio. On 1 July, one day after the quarter ended, the company completed its acquisition of timing assets from Renesas. The acquired operation adds more than 550 clocking products and serves over 10,000 customers, creating a much wider offering alongside SiTime’s existing oscillators and MEMS-based timing devices.
Approximately three-quarters of the acquired business’s revenue has historically come from AI data-centre and communications applications, with the remainder in industrial and automotive markets. SiTime expects the acquired operation to generate at least $300 million of revenue in the first 12 months after completion, although that figure is a company forecast rather than revenue already secured.
The acquisition also changes the engineering scope of the company. An oscillator provides a timing reference, whereas a complete timing tree can include resonators, clock generators, buffers, synchronisers, jitter cleaners, and distribution devices. Supplying a broader set of those functions allows a component manufacturer to address more of the system architecture, but it also requires customers, tools, product roadmaps, and support organisations to be integrated.
Manufacturing and qualification will be equally important because timing devices are often designed into equipment with long service lives. Industrial, automotive, communications, and data-centre customers may have different temperature, reliability, vibration, and availability requirements, making a larger catalogue useful only if specifications and supply can be maintained consistently.
SiTime entered the acquisition with more than four billion devices shipped and reported $1.92 billion of cash, cash equivalents, and short-term investments at the end of June, a figure that included proceeds raised to fund the transaction. The business therefore begins the integration from a substantially larger financial and product position than it occupied a year ago.
Comparisons become more complicated from the third quarter because reported revenue will combine SiTime’s existing growth with the acquired clocking operation. The second-quarter figure is consequently a useful baseline: $157.4 million generated before consolidation of the new business. Subsequent results will show whether organic timing demand continues growing once the much larger clocking catalogue becomes part of the same company.
