Alpha and Omega Semiconductor Limited (AOSL) P/E Ratio History
Deep ValueTrading at -15.4x · 0th percentile of 5-year range · Significant discount to historical valuation · Data 2011–2023
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P/E Ratio Analysis
As of November 7, 2026, Alpha and Omega Semiconductor Limited (AOSL) trades at a price-to-earnings ratio of -15.4x, with a stock price of $23.61 and trailing twelve-month earnings per share of $-1.53.
The current P/E is 109% below its 5-year average of 167.0x. Over the past five years, AOSL's P/E has ranged from a low of 1.9x to a high of 1147.7x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Technology sector median P/E of 24.9x, AOSL trades at a 162% discount to its sector peers. The sector includes 333 companies with P/E ratios ranging from 0.0x to 185.0x.
Relative to the broader market, AOSL trades at a notable discount to the S&P 500 median P/E of 21.8x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our AOSL DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
AOSL Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
AOSL P/E vs Peers
Power Semiconductors peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $4B | 31.0 | - | +51% | |
| $2B | 50.9 | - | -30% | |
| $58B | 65.7 | 2.23 | -65% | |
| $10B | 67.6 | - | +80%Best | |
| $25B | 36.5 | - | -92% | |
| $3B | 36.6 | - | +71% | |
| $264B | 28.7Lowest | 1.67 | +1% | |
| $251B | 29.8 | 1.81 | +39% | |
| $181B | 34.5 | 1.55Best | +21% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
AOSL Historical P/E Data (2011–2023)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2023 Q4 | Jun 30 2023 | $32.80 | $0.42 | 78.1x | -28% |
| FY2023 Q3 | Mar 31 2023 | $26.95 | $0.99 | 27.2x | -75% |
| FY2023 Q2 | Dec 31 2022 | $28.57 | $2.73 | 10.5x | -90% |
| FY2023 Q1 | Sep 30 2022 | $30.76 | $16.06 | 1.9x | -98% |
| FY2022 Q4 | - | $33.34 | $16.03 | 2.1x | -98% |
| FY2022 Q3 | - | $54.65 | $16.21 | 3.4x | -97% |
| FY2022 Q2 | Dec 31 2021 | $60.56 | $15.68 | 3.9x | -96% |
| FY2022 Q1 | - | $31.37 | $2.61 | 12.0x | -89% |
| FY2021 Q4 | Jun 30 2021 | $30.39 | $2.12 | 14.3x | -87% |
| FY2021 Q3 | Mar 31 2021 | $32.70 | $1.41 | 23.3x | -79% |
| FY2021 Q2 | - | $23.64 | $0.57 | 41.8x | -62% |
| FY2021 Q1 | Sep 30 2020 | $12.82 | $0.06 | 232.7x | +114% |
| FY2020 Q2 | - | $13.62 | $0.03 | 392.5x | +261% |
| FY2020 Q1 | Sep 30 2019 | $12.28 | $0.01 | 1147.7x | +955% |
| FY2019 Q4 | Jun 30 2019 | $9.34 | $0.07 | 132.1x | +21% |
| FY2019 Q3 | Mar 31 2019 | $11.51 | $0.01 | 1075.7x | +889% |
| FY2019 Q2 | Dec 31 2018 | $10.19 | $0.15 | 70.1x | -36% |
| FY2019 Q1 | Sep 30 2018 | $11.63 | $0.48 | 24.2x | -78% |
| FY2018 Q4 | Jun 30 2018 | $14.24 | $0.57 | 25.0x | -77% |
| FY2018 Q3 | Mar 31 2018 | $15.45 | $0.70 | 22.1x | -80% |
| FY2018 Q2 | Dec 31 2017 | $16.36 | $0.77 | 21.2x | -80% |
| FY2018 Q1 | Sep 30 2017 | $16.49 | $0.61 | 27.0x | -75% |
| FY2017 Q4 | Jun 30 2017 | $16.67 | $0.56 | 29.8x | -73% |
| FY2017 Q3 | Mar 31 2017 | $17.19 | $0.47 | 36.6x | -66% |
| FY2017 Q2 | Dec 31 2016 | $21.27 | $0.27 | 77.9x | -28% |
| FY2017 Q1 | Sep 30 2016 | $21.72 | $0.09 | 238.9x | +120% |
| FY2013 Q3 | Mar 31 2013 | $8.88 | $0.19 | 46.7x | -57% |
| FY2013 Q2 | Dec 31 2012 | $8.40 | $0.81 | 10.4x | -90% |
| FY2013 Q1 | Sep 30 2012 | $8.61 | $0.73 | 11.8x | -89% |
| FY2012 Q4 | Jun 30 2012 | $9.15 | $0.50 | 18.3x | -83% |
| FY2012 Q3 | Mar 31 2012 | $9.62 | $0.59 | 16.3x | -85% |
| FY2012 Q2 | Dec 31 2011 | $7.31 | $0.90 | 8.1x | -93% |
| FY2012 Q1 | Sep 30 2011 | $8.21 | $1.20 | 6.8x | -94% |
| FY2011 Q4 | - | $13.25 | $1.49 | 8.9x | -92% |
| FY2011 Q3 | - | $12.69 | $1.52 | 8.3x | -92% |
| FY2011 Q2 | Dec 31 2010 | $12.83 | $1.59 | 8.1x | -93% |
Average P/E for displayed period: 108.8x
AOSL Chart Terminal
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Intrinsic Valuation
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Historical Returns
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Peer Comparison
Compare growth, multiples, and margins vs sector.
AOSL — Frequently Asked Questions
Quick answers to the most common questions about buying AOSL stock.
What is AOSL's P/E ratio?
Alpha and Omega Semiconductor Limited (AOSL) trailing twelve-month P/E ratio is -15.4x, based on TTM diluted EPS of $-1.53. The 5-year average P/E is 167.0x and the historical range spans 1.9x to 1147.7x.
Is AOSL stock overvalued or undervalued?
AOSL trades at -15.4x P/E, below its 5-year average of 167.0x. At the 0th percentile of its historical range (1.9x–1147.7x), the stock is priced at a discount to its own history.
Is AOSL stock expensive?
No, AOSL is not expensive on a historical basis. The current P/E of -15.4x is below the 5-year average of 167.0x and sits at the 0th percentile of its valuation range.
What is AOSL's historical P/E range?
Over the past 5 years, AOSL's P/E ratio has ranged from 1.9x to 1147.7x, with a median of 25.0x and an average of 167.0x. The current P/E of -15.4x places the stock at the 0th percentile of this range. Full historical data spans 2011–2023.
How does AOSL's P/E compare to the S&P 500?
AOSL trades at -15.4x P/E versus the S&P 500 median of 21.8x. The 171% discount to the market suggests lower growth expectations or perceived higher risk.
How does AOSL's valuation compare to Technology peers?
Alpha and Omega Semiconductor Limited P/E of -15.4x compares to the Technology sector median of 24.9x. The discount suggests lower growth expectations, weaker margins, or higher perceived risk relative to peers. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is AOSL's PEG ratio?
AOSL PEG ratio is N/A, based on a P/E of -15.4x and EPS growth of 57.3%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is AOSL's earnings yield?
AOSL earnings yield is N/A, the inverse of its -15.4x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.