AOSL — ALPHA & OMEGA SEMICONDUCTOR Ltd
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
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Measured signals that fired on AOSL
| date | signal | measured base rate |
|---|---|---|
| 2026-08-19 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-08-14 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-08-10 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
| 2026-07-28 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-07-22 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-06-24 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-13 | Chang Mike F Director | Gift | 3.0M | 0.00 | 0 |
| 2026-07-20 | Chien Joshua C. Director | Grant or award | 1.4K | 0.00 | 0 |
| 2026-07-16 | Xue Bing EVP-WW Sales & Bus Development | Open-market sale 10b5-1 plan | 875 | 33.99 | 29.7K |
| 2026-07-13 | Chang Mike F Director | Gift | 23.8K | 0.00 | 0 |
| 2026-06-16 | Xue Bing EVP-WW Sales & Bus Development | Open-market sale 10b5-1 plan | 4.9K | 47.09 | 231.5K |
| 2026-06-01 | Chang Mike F Director | Gift | 30.0K | 0.00 | 0 |
| 2026-05-26 | Chang Mike F Director | Gift | 39.8K | 0.00 | 0 |
| 2026-05-22 | Chen Claudia Director | Open-market sale 10b5-1 plan | 3.8K | 39.47 | 151.7K |
| 2026-05-22 | Chen Claudia Director | Open-market sale 10b5-1 plan | 217 | 40.54 | 8.8K |
| 2026-05-22 | Chang Mike F Director | Gift | 736.3K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 86.5M | 3.9M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 34.9M | 1.6M |
| DIMENSIONAL FUND ADVISORS LP | 34.7M | 1.6M |
| STATE STREET CORP | 31.1M | 1.4M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 25.9M | 1.2M |
| VANGUARD CAPITAL MANAGEMENT LLC | 23.3M | 1.1M |
| WELLINGTON MANAGEMENT GROUP LLP | 15.4M | 694.8K |
| GEODE CAPITAL MANAGEMENT, LLC | 13.9M | 628.7K |
| TWO SIGMA INVESTMENTS, LP | 12.3M | 553.0K |
| FMR LLC | 12.1M | 544.7K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 4 | 2026-08-14 | 2026-08-13 | on EDGAR ↗ |
| 8-K | 2026-08-12 | 2026-08-12 | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-08-10 | — | on EDGAR ↗ |
| SCHEDULE 13G | 2026-08-07 | — | on EDGAR ↗ |
| 4 | 2026-07-21 | 2026-07-20 | on EDGAR ↗ |
| 4 | 2026-07-17 | 2026-07-16 | on EDGAR ↗ |
| 3 | 2026-07-17 | 2026-07-08 | on EDGAR ↗ |
| 144 | 2026-07-16 | — | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Alpha and Omega Semiconductor stock crashes post-Q4: AI boom meets PC weakness · 2026-08-13
- Cerebras Systems, Securitize, Stubhub Holdings And Other Big Stocks Moving Lower In Thursday’s Pre-Market Session · 2026-08-13 · benzinga
- Brinker International To Rally Around 22%? Here Are 10 Top Analyst Forecasts For Thursday · 2026-08-13 · benzinga
- Alpha & Omega Semiconductor Ltd (AOSL) filed form 8-K · 2026-08-12 · SEC EDGAR
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