Quick verdict: AOSL vs COHU in 2026

AOSL and COHU present a complex comparison in the semiconductor sector, resulting in an overall tie based on comparable metrics as of 2026-05-11. COHU emerges as the clear growth leader with its significantly higher revenue growth, while AOSL appears to offer better value based on its Price-to-Book ratio and less severe DCF overvaluation. Despite AOSL’s better EBITDA margin, COHU demonstrates superior gross and net margins along with positive free cash flow, giving it an edge in overall profitability. COHU is the analyst favorite with a much higher buy rating percentage, though AOSL shows greater potential price target upside according to current analyst consensus. Not investment advice.

AOSL vs COHU: key metrics side by side

Full side-by-side comparison of AOSL and COHU across valuation, profitability, growth and analyst sentiment. Data updated 2026-05-11.

AOSL vs COHU valuation comparison

In terms of AOSL vs COHU valuation, both companies currently trade with negative P/E ratios, indicating they are not profitable over the last twelve months. Alpha and Omega Semiconductor Limited (AOSL) has a P/E ratio of -10.66x, which, while negative, is considerably less negative than Cohu, Inc.’s (COHU) P/E of -41.92x. This suggests that AOSL’s losses are less severe relative to its share price compared to COHU, making it potentially more attractive from this specific valuation standpoint for companies experiencing unprofitability.

Delving deeper into valuation, AOSL also presents a more attractive Price-to-Book (P/B) ratio at 1.42x, significantly lower than COHU’s 3.03x. This indicates that AOSL’s stock trades at a lower multiple of its book value per share, implying that investors are paying less for its underlying assets. Furthermore, while both stocks are indicated as significantly overvalued by their respective Discounted Cash Flow (DCF) models, AOSL’s DCF upside is -81.7%, which is marginally better (less negative) than COHU’s -86.9%. Based on these comprehensive metrics, AOSL appears to be the cheaper stock when conducting an AOSL vs COHU valuation comparison, especially considering its P/B ratio and the relative severity of its losses per share.

AOSL vs COHU growth comparison

When evaluating AOSL vs COHU growth, Cohu, Inc. clearly demonstrates stronger top-line momentum. COHU reported a robust revenue growth of +12.7% year-over-year, significantly outperforming Alpha and Omega Semiconductor Limited, which posted a revenue growth of +5.9%. This suggests that COHU is expanding its sales base at a much faster rate in the current market environment, indicating stronger market penetration or demand for its products.

While COHU leads in revenue growth, a closer look at profitability margins provides further insight into their operational efficiency. COHU boasts a superior gross margin of 36.21% compared to AOSL’s 22.41%, and a better net margin of -11.54% compared to AOSL’s -15.51%. This indicates that COHU is more efficient at controlling costs and generating profit from its sales, even though both are currently unprofitable at the net level. However, AOSL registers a higher EBITDA margin of 2.81% against COHU’s 0.15%. Despite AOSL’s better EBITDA margin, COHU’s stronger revenue growth and significantly higher gross and net margins point to a company with more dynamic market penetration and better overall operational efficiency and momentum.

AOSL vs COHU profitability

Assessing AOSL vs COHU profitability reveals a nuanced landscape. Both companies are currently operating at a loss, as indicated by their negative net margins. COHU, however, shows a less severe net loss with a margin of -11.54%, which is notably better than AOSL’s -15.51%. This suggests that Cohu, Inc. is relatively more efficient in managing its expenses to convert revenue into net income, even if that income is currently negative. Additionally, COHU’s gross margin of 36.21% significantly surpasses AOSL’s 22.41%, indicating a stronger core business profitability.

When examining free cash flow, COHU stands out with a positive FCF yield of 1.72%, meaning it is generating cash from its operations. In contrast, AOSL has a negative FCF yield of -5.35%, indicating that Alpha and Omega Semiconductor Limited is currently burning cash. This is a critical distinction, as positive free cash flow is vital for sustainable operations, debt repayment, and future investment. Neither company provides a calculable Return on Equity (ROE), so that specific metric cannot be used for comparison. Overall, COHU exhibits superior profitability metrics through its higher gross and less negative net margins, and crucially, its positive free cash flow generation.

Analyst ratings: AOSL vs COHU

The analyst ratings present a clear preference when comparing AOSL vs COHU. Cohu, Inc. enjoys significantly stronger support from the analyst community, with a substantial 85.7% of the 14 analysts covering the stock issuing a “Buy” rating. Their consensus target price for COHU is $49.75, which suggests a modest upside of +0.4% from its current price of $49.54, implying analysts believe the stock is currently fairly valued or has limited immediate growth potential from its present levels.

Alpha and Omega Semiconductor Limited, on the other hand, has a lower percentage of “Buy” ratings, with 45.5% out of 11 analysts recommending a purchase. Despite the lower buy consensus, AOSL’s target price of $43 offers a more substantial upside of +13.5% from its current price of $37.9. This suggests that while fewer analysts are recommending AOSL, those who do see a more significant potential for price appreciation. Both companies still carry an overall “Buy” consensus, showing a general positive outlook from analysts for both in the long term, but COHU is the more widely endorsed stock while AOSL offers greater potential price target upside.

Should I buy AOSL or COHU stock in 2026?

For growth-oriented investors considering AOSL vs COHU stock in 2026, Cohu, Inc. might be the more appealing option. COHU demonstrates superior revenue growth at 12.7% year-over-year compared to AOSL’s 5.9%, indicating stronger business momentum and a greater capacity for expanding its market presence and top-line performance. Furthermore, COHU’s less negative net margin (-11.54% vs -15.51%) and positive free cash flow yield (1.72% vs -5.35%) suggest better operational health despite its negative P/E.

Value investors, especially those comfortable with companies currently incurring losses, might find Alpha and Omega Semiconductor Limited (AOSL) more attractive. AOSL exhibits a considerably lower Price-to-Book ratio of 1.42x against COHU’s 3.03x, suggesting a cheaper valuation relative to its tangible assets. Furthermore, AOSL’s negative P/E ratio of -10.66x is less severe than COHU’s -41.92x, implying its losses are less concentrated per share. The DCF model also positions AOSL as slightly less overvalued, and analysts see greater price target upside for AOSL.

Regarding income, neither AOSL nor COHU stock is suitable for investors seeking dividends in 2026, as both companies have a 0% dividend yield. Therefore, the decision between these two semiconductor firms hinges on whether an investor prioritizes stronger revenue growth, better overall profitability, and higher analyst conviction (COHU) or a potentially more favorable valuation, less severe losses, and greater price target upside (AOSL). Both companies are currently unprofitable, demanding careful consideration. This is not investment advice; please conduct your own thorough due diligence.

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