How much did Monolithic Power change its first-quarter 2025 revenue outlook?

Revenue guidance was raised to $630.0 million–$640.0 million from $610.0 million–$630.0 million. The midpoint moved from about $620 million to about $635 million, a roughly $15 million increase.

Did the company's operating expense outlook change?

Yes. GAAP operating expenses were raised to $184.9 million–$190.9 million from $180.2 million–$186.2 million, and non-GAAP operating expenses were raised to $131.6 million–$135.6 million from $126.9 million–$130.9 million. Both increased by about $4.7 million at each end of the range. The filing does not explain the reason for the increase.

Why does the filing matter for investors?

The revenue raise suggests demand was stronger than previously expected for the quarter. Higher expense guidance partly offsets that benefit, so the profitability impact depends on the balance between revenue and spending.

Were any new financial results or long-term targets disclosed?

The 8-K itself contains no reported first-quarter results. The Analyst Day presentation (Exhibit 99.1) covers strategy and financial metrics, but its contents are only referenced in this filing, not summarized in it.

When will investors get the full first-quarter results?

The company said it will report first-quarter 2025 results and provide second-quarter guidance in its earnings release and webinar at the end of April or the beginning of May 2025.

MPWR 8-K: Regulation FD

01—Abstract

Summary

Summary of the 8-K filed March 20, 2025. Cited figures are marked; the original filing is the authoritative source.

On March 20, 2025, Monolithic Power Systems (MPWR) filed an 8-K under Regulation FD (Item 7.01) to disclose two items: an Analyst Day webcast at 9:00 am Pacific Time, where management is expected to discuss corporate strategy, business and product updates, and financial metrics, and a press release updating its first-quarter 2025 financial guidance.

The filing states that the Analyst Day materials (Exhibit 99.1) and the guidance release (Exhibit 99.2) are furnished, not filed, so they are not subject to Section 18 liability. The filing contains no financial results and no new long-term targets beyond what the presentation may contain. The key change is a guidance raise.

First-quarter revenue guidance moved up to $630.0 million to $640.0 million^a from $610.0 million to $630.0 million, an increase of $20.0 million at the low end and $10.0 million at the high end, implying a narrower range and a higher midpoint of about $635 million versus $620 million previously. Guidance for GAAP operating expenses rose to $184.9 million to $190.9 million from $180.2 million to $186.2 million, and non-GAAP operating expenses rose to $131.6 million to $135.6 million from $126.9 million to $130.9 million. The company attributes no specific cause to the expense increase in the release, and the stock-based compensation adjustment is unchanged at $53.3 million to $55.3 million.

For investors, the revenue raise is the main signal, since it suggests stronger-than-expected demand entering the first quarter. The higher expense outlook partly offsets this, so the net effect on profitability depends on the mix of spending. Full first-quarter results and second-quarter guidance are due at the end of April or beginning of May 2025, and the Analyst Day commentary may provide more context on the company's multi-year strategy.

02—Key points

Key Highlights

Raised Q1 2025 revenue guidance to $630.0M–$640.0M from $610.0M–$630.0M, a $20.0M increase at the low end and $10.0M at the high end.
Raised Q1 2025 GAAP operating expense guidance to $184.9M–$190.9M from $180.2M–$186.2M, an increase of about $4.7M at both ends.
Raised Q1 2025 non-GAAP operating expense guidance to $131.6M–$135.6M from $126.9M–$130.9M, an increase of about $4.7M at both ends.
Stock-based compensation and related adjustments held steady at $53.3M–$55.3M, so the GAAP-to-non-GAAP gap did not change.
Hosted an Analyst Day on March 20, 2025 covering corporate strategy, business and product updates, and financial metrics, with materials furnished as Exhibit 99.1.
Disclosure was furnished under Regulation FD (Item 7.01) and is not deemed filed for Section 18 purposes.
Next full earnings report and Q2 2025 guidance are expected at the end of April or beginning of May 2025.

03—Questions

Frequently Asked Questions

How much did Monolithic Power change its first-quarter 2025 revenue outlook?
Revenue guidance was raised to $630.0 million–$640.0 million from $610.0 million–$630.0 million. The midpoint moved from about $620 million to about $635 million, a roughly $15 million increase.
Did the company's operating expense outlook change?
Yes. GAAP operating expenses were raised to $184.9 million–$190.9 million from $180.2 million–$186.2 million, and non-GAAP operating expenses were raised to $131.6 million–$135.6 million from $126.9 million–$130.9 million. Both increased by about $4.7 million at each end of the range. The filing does not explain the reason for the increase.
Why does the filing matter for investors?
The revenue raise suggests demand was stronger than previously expected for the quarter. Higher expense guidance partly offsets that benefit, so the profitability impact depends on the balance between revenue and spending.
Were any new financial results or long-term targets disclosed?
The 8-K itself contains no reported first-quarter results. The Analyst Day presentation (Exhibit 99.1) covers strategy and financial metrics, but its contents are only referenced in this filing, not summarized in it.
When will investors get the full first-quarter results?
The company said it will report first-quarter 2025 results and provide second-quarter guidance in its earnings release and webinar at the end of April or the beginning of May 2025.

04—Continue

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