# APPLIED OPTOELECTRONICS INC COM

APPLIED OPTOELECTRONICS INC COM is a security (CUSIP 03823U102) tracked across SEC portfolio filings. 441 institutional managers reported $5.0B on Form 13F as of 2026-06-30; 36 registered fund positions totaling $571.3M via N-PORT as of 2026-05-31.

## Summary

- Issuer: APPLIED OPTOELECTRONICS INC
- Class: COM
- CUSIP: 03823U102
- Asset category: EC
- 13F holders: 441
- 13F value: $5.0B
- 13F period: 2026-06-30
- N-PORT fund positions: 36
- N-PORT value: $571.3M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 441 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $608.4M | 7,192,329 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $472.6M | 2,279,318 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $348.7M | 86,973 |
| D. E. Shaw & Co., Inc. | New York, NY | $222.5M | 2,117,157 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $210.7M | 421,003 |
| [OBERWEIS ASSET MANAGEMENT INC/](https://search.stillhousedata.com/firm/105471) | Lisle, IL | $198.8M | 2,349,969 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $173.7M | 4,982,660 |
| STATE STREET CORP | BOSTON, MA | $139.1M | 1,644,293 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $137.2M | 1,621,305 |
| [Value Aligned Research Advisors, LLC](https://search.stillhousedata.com/firm/319135) | PRINCETON, NJ | $109.4M | 1,267,938 |
| Hood River Capital Management LLC | PALM BEACH GARDENS, FL | $107.9M | 1,275,519 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $94.7M | 1,111,132 |
| [Walleye Trading LLC](https://search.stillhousedata.com/firm/136196) | NEW YORK, NY | $92.6M | — |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $91.8M | 1,084,764 |
| UBS Group AG | Zurich, V8 | $87.9M | 970,744 |

## Top fund holders (N-PORT)

_Showing 15 of 36 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Invesco Small Cap Value Fund](https://search.stillhousedata.com/fund/S000027837) | AIM Sector Funds (Invesco Sector Funds) | $161.2M | 149.89% |
| [Oberweis Micro-Cap Fund](https://search.stillhousedata.com/fund/S000010231) | OBERWEIS FUNDS | $90.9M | 865.07% |
| [T. Rowe Price New Horizons Fund, Inc.](https://search.stillhousedata.com/fund/S000002106) | T. ROWE PRICE NEW HORIZONS FUND, INC. | $87.5M | 68.52% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $60.6M | 7.44% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $53.8M | 30.68% |
| [Emerald Growth Fund](https://search.stillhousedata.com/fund/S000036390) | FINANCIAL INVESTORS TRUST | $23.9M | 169.77% |
| [T. Rowe Price Small-Cap Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002121) | T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | $17.2M | 18.70% |
| [T. Rowe Price Small-Cap Stock Fund, Inc.](https://search.stillhousedata.com/fund/S000002120) | T. ROWE PRICE SMALL-CAP STOCK FUND, INC. | $14.6M | 18.08% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $12.2M | 5.61% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $9.1M | 18.84% |
| [T. Rowe Price Institutional Small-Cap Stock Fund](https://search.stillhousedata.com/fund/S000002094) | T. Rowe Price Equity Funds, Inc. | $7.8M | 18.07% |
| ROYCE MICRO-CAP TRUST, INC. | ROYCE MICRO-CAP TRUST, INC. | $5.9M | 85.33% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $3.4M | 0.58% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $3.4M | 24.24% |
| [AMG Frontier Small Cap Growth Fund](https://search.stillhousedata.com/fund/S000009910) | AMG Funds I | $3.1M | 316.58% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/03823U102.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.