POWI Power Integrations, Inc.
Power Integrations, Inc. (POWI) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| Bridgewater Associates Quant Macro | New | +17.9K | — | $1.5M | 0.0% | 63 |
| Hudson Bay Capital Management Event | Sold Out | -1.00M | -100.0% | $83.8M | 0.0% | 61 |
| MARSHALL WACE, LLP Long/Short | Sold Out | -360.2K | -100.0% | $30.2M | 0.0% | 60 |
| D. E. Shaw & Co., Inc. Quant | New | +25.9K | — | $2.2M | 0.0% | 60 |
| Verition Fund Management Event Long/Short | New | +24.6K | — | $2.1M | 0.0% | 56 |
| Squarepoint Ops LLC Quant | New | +9.7K | — | $815.1K | 0.0% | 54 |
| Voloridge Investment Management Quant | Sold Out | -9.0K | -100.0% | $752.8K | 0.0% | 53 |
| Capstone Investment Advisors Quant Macro | New | +2.4K | — | $201.7K | 0.0% | 53 |
| Walleye Capital Long/Short Quant | New | +797 | — | $66.8K | 0.0% | 51 |
| Brevan Howard Capital Management Macro | New | +2.7K | — | $228.0K | 0.0% | 49 |
Most significant buyers
By move score, not size.
- Bridgewater Associates
- D. E. Shaw & Co., Inc.
- Verition Fund Management
- Squarepoint Ops LLC
- Capstone Investment Advisors
Most significant sellers
By move score, not size.
- Hudson Bay Capital Management
- MARSHALL WACE, LLP
- Voloridge Investment Management
- Holocene Advisors, LP
- CITADEL ADVISORS LLC
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Bridgewater Associates | 1 | 17.9K | 0 | +17.9K | — | 0.0% | New | 63 |
| Hudson Bay Capital Management | 3 | 0 | 1.0M | -1.00M | -100.0% | 0.0% | Sold Out | 61 |
| MARSHALL WACE, LLP | 2 | 0 | 360.2K | -360.2K | -100.0% | 0.0% | Sold Out | 60 |
| D. E. Shaw & Co., Inc. | 1 | 25.9K | 0 | +25.9K | — | 0.0% | New | 60 |
| Verition Fund Management | 2 | 24.6K | 0 | +24.6K | — | 0.0% | New | 56 |
| Squarepoint Ops LLC | 2 | 9.7K | 0 | +9.7K | — | 0.0% | New | 54 |
| Voloridge Investment Management | 2 | 0 | 9.0K | -9.0K | -100.0% | 0.0% | Sold Out | 53 |
| Capstone Investment Advisors | 3 | 2.4K | 0 | +2.4K | — | 0.0% | New | 53 |
| Walleye Capital | 3 | 797 | 0 | +797 | — | 0.0% | New | 51 |
| Brevan Howard Capital Management | 3 | 2.7K | 0 | +2.7K | — | 0.0% | New | 49 |
| CenterBook Partners | 4 | 3.3K | 0 | +3.3K | — | 0.0% | New | 49 |
| Aquatic Capital Management | 4 | 7.3K | 0 | +7.3K | — | 0.0% | New | 48 |
| Holocene Advisors, LP | 2 | 12.8K | 87.9K | -75.1K | -85.4% | 0.0% | Reduced | 48 |
| Man Group | 3 | 40.9K | 7.6K | +33.3K | +437.5% | 0.0% | Increased | 48 |
| CITADEL ADVISORS LLC | 1 | 42.7K | 109.9K | -67.3K | -61.2% | 0.0% | Reduced | 44 |
| Winton Group | 4 | 3.8K | 16.9K | -13.1K | -77.4% | 0.0% | Reduced | 39 |
| AQR Capital Management | 3 | 43.6K | 137.4K | -93.8K | -68.3% | 0.0% | Reduced | 39 |
| TWO SIGMA INVESTMENTS, LP | 2 | 13.7K | 22.8K | -9.1K | -39.9% | 0.0% | Reduced | 36 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.