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Is Allegro MicroSystems (ALGM) Still Below Fair Value After Strong Earnings And New Products?

Simply Wall St·11/10/2026 08:23:48
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Allegro MicroSystems (ALGM) has been in focus after a strong quarterly report and fresh guidance that points to higher third quarter sales, backed by new products for automotive and AI data center customers.

Recent price action shows how quickly sentiment around Allegro MicroSystems can swing. The stock posted a 1-day share price gain of 9.76% following the earnings and guidance updates. However, the 30-day share price return is down 13.07% and the 90-day share price return is down 27.28%. At the same time, the year-to-date share price return of 14.90% and the 1-year total shareholder return of 12.03% point to longer term gains that have been partially reset as investors reassess the risks and potential tied to its new automotive and AI data center products.

Scan hand picked peers that are benefiting from similar demand for chips powering cars and AI infrastructure through the 53 AI infrastructure stocks.

The sharp rebound in Allegro MicroSystems after earnings comes after a longer stretch of choppy returns. Is the bulk of the re-rating already in the rearview mirror, or does the current price still leave meaningful upside?

Most Popular Narrative: 37% Undervalued

Allegro MicroSystems' fair value in the analyst consensus Narrative on Simply Wall St sits at $48.85 compared with a last close of $30.92, which frames the recent rally as only a partial catch up to that narrative valuation.

Industrial automation and data center markets are contributing more meaningfully to Allegro MicroSystems, with Industrial and Other sales of US$94 million in the latest quarter, data center reaching 17% of total sales and current sensors rising to 22% of data center revenue with gross margins in that business in the mid 50s. This is creating a mix shift that can add incremental revenue and support higher consolidated gross margin and net income over time.

See why 23 investors see Allegro MicroSystems as 37% undervalued.

Result: Fair Value of $48.85 (UNDERVALUED)

Still, the bullish Allegro MicroSystems narrative could crack if demand in China weakens or if pricing pressure and input costs continue to squeeze margins.

Find out about the key risks to this Allegro MicroSystems narrative.

Another View: What Multiples Say About Allegro MicroSystems

There is a punchy story in the analyst fair value for Allegro MicroSystems, yet the market’s own yardstick tells something more mixed. The stock trades on a P/S ratio of 5.7x, above the fair ratio of 4.3x, and exactly in line with the wider US Semiconductor group at 5.7x. That combination points to limited cushion if sentiment cools or growth assumptions soften. Does that sound like a margin of safety or a tightrope to you?

For a closer look at how this pricing gap lines up with fundamentals and sector peers, check the valuation breakdown in the See what the numbers say about this price — find out in our valuation breakdown.

NasdaqGS:ALGM P/S Ratio as at Nov 2026
NasdaqGS:ALGM P/S Ratio as at Nov 2026

Next Steps

Mixed signals around Allegro MicroSystems can feel messy, so move quickly, review the underlying data, weigh both sides, and focus on the 4 key rewards and 1 important warning sign.

Looking for more investment ideas beyond Allegro MicroSystems?

If Allegro MicroSystems has you thinking about your next move, do not stop with a single ticker when a broader watchlist could sharpen your edge.