Quick verdict: ADTN vs AOSL in 2026

ADTRAN Holdings, Inc. (ADTN) demonstrates a stronger edge in profitability, growth momentum, and offers greater upside according to analyst price targets. While Alpha and Omega Semiconductor Limited (AOSL) presents a more attractive valuation in terms of price-to-book and a less negative discounted cash flow, ADTN leads on 7 out of 10 comparable metrics according to our analysis. Analysts slightly favor AOSL in terms of buy rating percentage, but both carry a “Buy” consensus. Not investment advice.

ADTN vs AOSL: key metrics side by side

Full side-by-side comparison of ADTN and AOSL across valuation, profitability, growth and analyst sentiment. Data updated 2026-05-12.

ADTN vs AOSL valuation comparison

When assessing ADTN vs AOSL valuation, both companies present interesting, albeit challenging, metrics due to their current unprofitability. ADTN’s P/E ratio stands at -35.27x, while AOSL’s is -10.86x. While both are negative, AOSL’s P/E is “less negative,” which might initially suggest it’s cheaper relative to its losses. However, the interpretation of negative P/E ratios requires careful consideration as they indicate the company is currently losing money rather than generating profits, making traditional P/E comparison less straightforward.

AOSL appears to be the more attractively valued stock when considering price-to-book (P/B) ratio and discounted cash flow (DCF). AOSL’s P/B is significantly lower at 1.44x compared to ADTN’s much higher 9.16x, suggesting that AOSL’s stock price is much closer to its book value per share. Furthermore, the DCF upside paints a stark picture: ADTN has a staggering -559.4% DCF upside, indicating extreme overvaluation by this model, whereas AOSL’s -82.1% DCF upside, while still negative, is substantially better, suggesting its intrinsic value is less detached from its current price. This makes AOSL seem cheaper and more grounded from a valuation perspective, particularly if one believes in the underlying asset base and a potential turnaround.

ADTN vs AOSL growth comparison

In the ADTN vs AOSL growth comparison, ADTRAN Holdings, Inc. clearly demonstrates stronger revenue momentum. ADTN reported a year-over-year revenue growth of +17.5%, significantly outpacing Alpha and Omega Semiconductor Limited’s +5.9% revenue growth. This robust growth rate for ADTN suggests a company that is more effectively expanding its market share or seeing higher demand for its products and services, signaling greater operational momentum in the current economic landscape of 2026.

Despite both companies operating in the dynamic technology sector, ADTN’s ability to nearly triple AOSL’s revenue growth rate indicates a more aggressive expansion strategy or a stronger competitive position. While both companies are currently unprofitable, sustained revenue growth is crucial for future profitability and investor confidence. ADTN’s larger revenue base of $1.08 billion compared to AOSL’s $696,162,000, combined with its higher growth, positions it as a company with greater potential for scale and market dominance going forward. This suggests ADTN has stronger top-line momentum, which is often a key indicator for growth-oriented investors looking for companies poised for future success.

ADTN vs AOSL profitability

Examining ADTN vs AOSL profitability metrics reveals a significant difference, with ADTN demonstrating a much stronger financial health, despite both companies currently operating at a loss. ADTRAN Holdings, Inc. reported a net margin of -3.18%, which, while negative, is considerably better than Alpha and Omega Semiconductor Limited’s net margin of -15.51%. This indicates that ADTN is much closer to achieving profitability and is incurring significantly lower losses relative to its revenue. Furthermore, ADTN’s EBITDA margin stands at a positive 7.28%, a healthy figure that suggests effective operational management before accounting for depreciation and amortization. In contrast, AOSL’s EBITDA margin is a much lower 2.81%, highlighting less efficient core operations.

Further reinforcing ADTN’s superior profitability is its free cash flow (FCF) yield of 4.59%. This positive FCF yield indicates that ADTN is generating cash from its operations after capital expenditures, which is a crucial sign of financial stability and the ability to fund future growth organically. On the other hand, AOSL has a negative FCF yield of -5.25%, implying that the company is burning cash and may need to seek external financing for its operations. While return on equity (ROE) is N/A% for both companies, the provided metrics overwhelmingly suggest that ADTN is far more efficient in its operations and generates more cash, making it the more financially robust choice in terms of profitability comparisons.

Analyst ratings: ADTN vs AOSL

When evaluating the analyst consensus for ADTN vs AOSL, both companies receive a “Buy” consensus rating, suggesting a generally positive outlook from the professional investment community. Alpha and Omega Semiconductor Limited (AOSL) holds a slightly higher percentage of “Buy” ratings, with 45.5% of the 11 analysts covering the stock recommending a buy. This indicates a strong conviction among a slightly smaller pool of analysts regarding AOSL’s future prospects.

ADTRAN Holdings, Inc. (ADTN), on the other hand, has a “Buy” rating from 44.0% of the 25 analysts providing coverage, which represents a broader analytical base. Despite a slightly lower “Buy” percentage, ADTN offers a more compelling price target upside of +14.8% to $18, compared to AOSL’s target upside of +11.3% to $43. This suggests that while analysts are slightly more unified in their “Buy” recommendation for AOSL, they see greater potential for stock price appreciation in ADTN based on their current models. Both stocks, however, are viewed favorably by analysts in 2026, with potential for growth.

Should I buy ADTN or AOSL stock in 2026?

For growth investors prioritizing top-line expansion and operational efficiency, ADTRAN Holdings, Inc. (ADTN) presents a more compelling case. With revenue growth of 17.5% year-over-year, ADTN significantly outpaces AOSL’s 5.9%. Furthermore, ADTN exhibits superior profitability metrics, including a much less negative net margin (-3.18% vs -15.51%), a robust positive EBITDA margin (7.28%), and a positive free cash flow yield (4.59%). These fundamentals suggest ADTN has stronger momentum and is closer to sustainable profitability, making it potentially more attractive for those seeking growth in 2026.

Conversely, value investors focused on intrinsic value and asset-backed pricing might lean towards Alpha and Omega Semiconductor Limited (AOSL). AOSL’s price-to-book ratio of 1.44x is considerably lower than ADTN’s 9.16x, indicating a more reasonable valuation relative to its tangible assets. While both companies show negative DCF upside, AOSL’s -82.1% is substantially better than ADTN’s alarming -559.4%, suggesting AOSL is less overvalued by this intrinsic valuation method. Additionally, AOSL boasts a much lower debt-to-equity ratio of 0.04x compared to ADTN’s 1.59x, signaling greater financial stability and less leverage. These metrics position AOSL as a potentially safer bet for value-conscious investors.

Regarding income, neither ADTN nor AOSL currently offers a dividend, with both stocks reporting a 0% dividend yield. Therefore, neither company is suitable for investors primarily seeking income from their stock holdings in 2026. Ultimately, the decision on whether to buy ADTN or AOSL stock in 2026 hinges on an investor’s specific objectives, risk tolerance, and investment horizon, weighing ADTN’s growth and operational strength against AOSL’s more attractive valuation and financial conservatism. This is not investment advice; please conduct your own thorough research.

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