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Of the 11 tracked institutions holding AAOI, 5 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +4.2pt. It's a gauge of who owns the name, not just how many.
Among the 11 tracked institutional investors we monitor, AAOI (APPLIED OPTOELECTRONICS INC) is held with a combined value of $1.45B across 13,609,036 shares. The largest holder is BlackRock, Inc. with a position worth $955.67M (0.01% of their portfolio). Greenwoods Asset Management Hong Kong Ltd. opened a new position in the most recent quarter. 3 funds increased their holdings. 7 funds reduced their position.
Total Institutional Value
$1.45B
Total Shares Held
13,609,036
Institutional Holders
11
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $955.67M | 0.01% | -10.3% |
| 2 | STATE STREET CORP | $221.89M | 0.01% | -8.9% |
| 3 | VANGUARD GROUP INC | $173.70M | 0.00% | +7.7% |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | $36.16M | 0.01% | -5.3% |
| 5 | MILLENNIUM MANAGEMENT LLC | $18.72M | 0.01% | +26.7% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $16.44M | 0.00% | -93.6% |
| 7 | CITADEL ADVISORS LLC | $10.79M | 0.01% | -82.7% |
| 8 | Greenwoods Asset Management Hong Kong Ltd. | $7.93M | 0.36% | New |
| 9 | AQR CAPITAL MANAGEMENT LLC | $7.34M | 0.00% | +60.9% |
| 10 | FMR LLC | $2.54M | 0.00% | -3.1% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of AAOI with a position worth $955.67M, representing 0.01% of their portfolio. In total, 11 institutional investors hold AAOI with a combined value of $1.45B.
In the most recent quarter, 1 fund opened a new position in AAOI. Additionally, 3 increased their holdings and 7 reduced their positions.
Institutional investors hold $1.45B worth of AAOI stock across 11 positions. The largest institutional holder is BlackRock, Inc. with $955.67M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For AAOI, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their AAOI positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| 2026-07-27 |
SEC Schedule 13D (activist) and 13G (passive) filings for AAOI. Filed when an investor acquires 5%+ ownership.
Last Close
$103.29
2026-09-10
YTD
+160.8%
41% of 52-week range
