QLYS Qualys, Inc.
Qualys, Inc. (QLYS) 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 |
|---|---|---|---|---|---|---|
| Point72 Asset Management, L.P. | New | +285.9K | — | $39.3M | 0.1% | 64 |
| Portolan Capital Management Long/Short | Increased | +290.8K | +121.7% | $40.0M | 2.7% | 64 |
| Bridgewater Associates Quant Macro | Sold Out | -10.2K | -100.0% | $1.4M | 0.0% | 63 |
| Holocene Advisors, LP | New | +35.0K | — | $4.8M | 0.0% | 58 |
| MILLENNIUM MANAGEMENT LLC | Increased | +527.3K | +224.0% | $72.5M | 0.1% | 58 |
| Qube Research & Technologies Ltd Quant | Sold Out | -55.2K | -100.0% | $7.6M | 0.0% | 57 |
| MARSHALL WACE, LLP Long/Short | Reduced | -141.2K | -98.4% | $19.4M | 0.0% | 54 |
| CITADEL ADVISORS LLC Quant | Increased | +174.6K | +85.8% | $24.0M | 0.0% | 52 |
| ExodusPoint Capital Management Long/Short Quant | New | +5.3K | — | $725.8K | 0.0% | 52 |
| TWO SIGMA INVESTMENTS, LP Quant | Reduced | -138.1K | -89.1% | $19.0M | 0.0% | 52 |
Most significant buyers
By move score, not size.
- Point72 Asset Management, L.P.
- Portolan Capital Management
- Holocene Advisors, LP
- MILLENNIUM MANAGEMENT LLC
- CITADEL ADVISORS LLC
Most significant sellers
By move score, not size.
- Bridgewater Associates
- Qube Research & Technologies Ltd
- MARSHALL WACE, LLP
- TWO SIGMA INVESTMENTS, LP
- D. E. Shaw & Co., Inc.
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Point72 Asset Management, L.P. | 1 | 285.9K | 0 | +285.9K | — | 0.1% | New | 64 |
| Portolan Capital Management | 3 | 529.8K | 239.0K | +290.8K | +121.7% | 2.7% | Increased | 64 |
| Bridgewater Associates | 1 | 0 | 10.2K | -10.2K | -100.0% | 0.0% | Sold Out | 63 |
| Holocene Advisors, LP | 2 | 35.0K | 0 | +35.0K | — | 0.0% | New | 58 |
| MILLENNIUM MANAGEMENT LLC | 2 | 762.7K | 235.4K | +527.3K | +224.0% | 0.1% | Increased | 58 |
| Qube Research & Technologies Ltd | 2 | 0 | 55.2K | -55.2K | -100.0% | 0.0% | Sold Out | 57 |
| MARSHALL WACE, LLP | 2 | 2.3K | 143.5K | -141.2K | -98.4% | 0.0% | Reduced | 54 |
| CITADEL ADVISORS LLC | 1 | 378.1K | 203.5K | +174.6K | +85.8% | 0.0% | Increased | 52 |
| ExodusPoint Capital Management | 3 | 5.3K | 0 | +5.3K | — | 0.0% | New | 52 |
| TWO SIGMA INVESTMENTS, LP | 2 | 16.9K | 155.0K | -138.1K | -89.1% | 0.0% | Reduced | 52 |
| D. E. Shaw & Co., Inc. | 1 | 19.9K | 125.1K | -105.2K | -84.1% | 0.0% | Reduced | 52 |
| Alyeska Investment Group, L.P. | 2 | 33.6K | 304.7K | -271.1K | -89.0% | 0.0% | Reduced | 52 |
| Graham Capital Management | 3 | 0 | 9.0K | -9.0K | -100.0% | 0.0% | Sold Out | 51 |
| Walleye Capital | 3 | 0 | 18 | -18 | -100.0% | 0.0% | Sold Out | 51 |
| Y-Intercept | 4 | 0 | 47.2K | -47.2K | -100.0% | 0.0% | Sold Out | 51 |
| Aquatic Capital Management | 4 | 0 | 12.0K | -12.0K | -100.0% | 0.0% | Sold Out | 50 |
| Tudor Investment Corporation | 2 | 25.1K | 250.9K | -225.8K | -90.0% | 0.0% | Reduced | 50 |
| Boothbay Fund Management | 4 | 0 | 3.1K | -3.1K | -100.0% | 0.0% | Sold Out | 49 |
| Centiva Capital | 4 | 0 | 2.9K | -2.9K | -100.0% | 0.0% | Sold Out | 48 |
| Trexquant Investment | 3 | 6.9K | 156.0K | -149.2K | -95.6% | 0.0% | Reduced | 48 |
| Quantbot Technologies | 4 | 0 | 17.6K | -17.6K | -100.0% | 0.0% | Sold Out | 48 |
| Quadrature Capital | 3 | 5.5K | 38.4K | -32.9K | -85.8% | 0.0% | Reduced | 45 |
| Man Group | 3 | 11.7K | 73.3K | -61.7K | -84.1% | 0.0% | Reduced | 44 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 284.1K | 497.6K | -213.5K | -42.9% | 0.1% | Reduced | 42 |
| Engineers Gate | 4 | 3.4K | 20.8K | -17.4K | -83.6% | 0.0% | Reduced | 40 |
| Gotham Asset Management, LLC | 2 | 75.5K | 110.6K | -35.1K | -31.7% | 0.0% | Reduced | 33 |
| Caxton Associates | 3 | 20.7K | 14.5K | +6.2K | +42.5% | 0.1% | Increased | 33 |
| Capstone Investment Advisors | 3 | 1.8K | 3.2K | -1.4K | -42.8% | 0.0% | Reduced | 33 |
| AQR Capital Management | 3 | 1.4M | 1.0M | +355.8K | +34.3% | 0.1% | Increased | 33 |
| Brevan Howard Capital Management | 3 | 19.3K | 12.8K | +6.5K | +50.9% | 0.0% | Increased | 31 |
| Capital Fund Management | 3 | 19.3K | 26.6K | -7.3K | -27.3% | 0.0% | Reduced | 29 |
| Edgestream Partners | 4 | 4.4K | 5.7K | -1.4K | -23.7% | 0.0% | Reduced | 24 |
| Winton Group | 4 | 12.7K | 13.1K | -453 | -3.5% | 0.1% | Reduced | 18 |
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.