Betting Against
Read this first: nobody can show you who is short
A 13F does not disclose short positions. Short sales are exempt from it, so no site can list a fund's shorts, including this one. Two different things are knowable and this page keeps them apart: short interest tells you how heavily a stock is shorted by the whole market and names nobody, and 13F puts tell you which named fund holds put options.
Neither one sees a swap. A fund short through total-return swaps or plain borrow appears in neither dataset, which is why Archegos was invisible until it was not. An empty put list is not evidence that nobody is betting against a name.
Most shorted
By short interest as a percent of float. Above 100% is real rather than an error: borrowed shares get sold and re-lent. Settlement September 15, 2026, so this is positioning as of that date and not today.
| Symbol | % of float short | Shares short | Days to cover | vs last | Price | Today |
|---|---|---|---|---|---|---|
| QS QuantumScape Corporation Class A Common Stock | 108.4% | 97.8M | 10.5 | -0% | $4.56 | -7.1% |
| GRPN Groupon, Inc.Common Stock | 86.7% | 13.1M | 14.3 | +11% | $19.74 | -7.3% |
| TTAN ServiceTitan, Inc. Class A Common Stock | 82.4% | 10.0M | 4.3 | +35% | $59.92 | +3.2% |
| KITT Nauticus Robotics, Inc. Common stock | 73.3% | 908K | 1.0 | +48% | $1.81 | -22.0% |
| HTZ Hertz Global Holdings, Inc Common Stock | 67.4% | 115.9M | 8.5 | +1% | $1.69 | -2.9% |
| EOSE Eos Energy Enterprises, Inc. Class A Common Stock | 64.2% | 120.0M | 4.1 | +8% | $3.07 | -3.0% |
| JAGX Jaguar Health, Inc. | 62.8% | 326K | 1.0 | +35% | $6.02 | -21.8% |
| FLNC Fluence Energy, Inc. Class A Common Stock | 56.6% | 27.9M | 5.0 | +7% | $7.50 | -4.5% |
| PINS Pinterest, Inc. Class A Common Stock | 50.1% | 59.1M | 4.3 | +23% | $18.41 | -2.6% |
| SHOE Shoe Station Group, Inc. Common Stock | 48.8% | 8.8M | 5.4 | +24% | $13.21 | +1.6% |
| GCT GigaCloud Technology Inc Class A Ordinary Shares | 44.0% | 3.5M | 6.8 | -4% | $52.62 | -2.5% |
| BELFB Bel Fuse Inc | 42.3% | 721K | 5.0 | -5% | $248.07 | -1.8% |
| ONDS Ondas Inc. Common Stock | 42.2% | 237.1M | 3.9 | +5% | $7.68 | +0.5% |
| METC Ramaco Resources, Inc. Class A Common Stock | 41.7% | 13.5M | 6.0 | -2% | $8.98 | -0.4% |
| CHYM Chime Financial, Inc. Class A Common Stock | 40.9% | 21.3M | 2.7 | -0% | $26.69 | -0.3% |
| DUOL Duolingo, Inc. Class A Common Stock | 40.8% | 6.6M | 5.0 | -13% | $134.30 | -6.4% |
| LEU Centrus Energy Corp. | 40.1% | 5.4M | 7.0 | -1% | $140.37 | -4.6% |
| SERV Serve Robotics Inc. Common Stock | 39.7% | 32.1M | 11.4 | +5% | $4.43 | -0.4% |
| DERM Journey Medical Corporation Common Stock | 38.6% | 2.9M | 22.5 | -1% | $6.43 | +4.7% |
| LENZ LENZ Therapeutics, Inc. Common Stock | 38.3% | 10.6M | 14.6 | -2% | $3.96 | +1.1% |
| RH RH | 37.2% | 5.0M | 5.1 | +3% | $122.08 | -1.7% |
| NAVI Navient Corporation | 36.9% | 12.0M | 9.4 | +5% | $8.86 | -2.9% |
| PCT PureCycle Technologies, Inc. Common stock | 36.8% | 56.3M | 18.0 | +1% | $4.66 | -7.2% |
| CAPR Capricor Therapeutics Inc | 36.5% | 19.7M | 5.9 | -11% | $8.71 | +4.2% |
| NNE Nano Nuclear Energy Inc. Common Stock | 35.5% | 15.5M | 9.8 | +3% | $16.16 | -4.9% |
Being added to
Short interest rising fastest since the prior settlement, among names with a real base already on. This is fresh money taking the other side, not an old position sitting there.
Funds holding puts
Named 13F filers with put positions. Quarterly and roughly 45 days behind, so treat it as what a fund held at quarter end rather than what it holds now.
| Fund | Against | Contract shares | Exposure | Quarter |
|---|---|---|---|---|
| Citadel Advisors (Griffin) | putMU | 19.3M | $22.25B | 2026-06-30 |
| Citadel Advisors (Griffin) | putSNDK | 5.2M | $11.72B | 2026-06-30 |
| Citadel Advisors (Griffin) | putTSLA | 22.8M | $9.59B | 2026-06-30 |
| Citadel Advisors (Griffin) | putAMD | 16.1M | $9.36B | 2026-06-30 |
| Citadel Advisors (Griffin) | putNVDA | 45.9M | $9.18B | 2026-06-30 |
| Citadel Advisors (Griffin) | putMSFT | 17.0M | $6.33B | 2026-06-30 |
| Citadel Advisors (Griffin) | putAAPL | 21.6M | $6.24B | 2026-06-30 |
| Millennium Management (Englander) | putNVDA | 25.5M | $5.10B | 2026-06-30 |
| Citadel Advisors (Griffin) | putMETA | 9.0M | $5.08B | 2026-06-30 |
| Citadel Advisors (Griffin) | putTSM | 9.7M | $4.65B | 2026-06-30 |
| Citadel Advisors (Griffin) | putGOOG | 12.6M | $4.51B | 2026-06-30 |
| Citadel Advisors (Griffin) | putINTC | 31.2M | $4.35B | 2026-06-30 |
| Citadel Advisors (Griffin) | putAMZN | 15.6M | $3.73B | 2026-06-30 |
| Citadel Advisors (Griffin) | putWDC | 5.8M | $3.69B | 2026-06-30 |
| Millennium Management (Englander) | putMU | 2.8M | $3.26B | 2026-06-30 |
| Citadel Advisors (Griffin) | putGOOG | 8.7M | $3.06B | 2026-06-30 |
| Citadel Advisors (Griffin) | putSEAGATE TECHNOLOGY HLDNGS PL | 3.2M | $3.05B | 2026-06-30 |
| Citadel Advisors (Griffin) | putAVGO | 7.8M | $2.96B | 2026-06-30 |
| Citadel Advisors (Griffin) | putCAT | 2.7M | $2.91B | 2026-06-30 |
| Citadel Advisors (Griffin) | putASML HLDG NV | 1.4M | $2.86B | 2026-06-30 |
| Citadel Advisors (Griffin) | putMRVL | 9.6M | $2.85B | 2026-06-30 |
| Citadel Advisors (Griffin) | putELI LILLY & CO | 2.3M | $2.82B | 2026-06-30 |
| Millennium Management (Englander) | putAMD | 4.7M | $2.75B | 2026-06-30 |
| Millennium Management (Englander) | putAAPL | 9.1M | $2.63B | 2026-06-30 |
| Millennium Management (Englander) | putAMZN | 10.6M | $2.54B | 2026-06-30 |
How to read these numbers
- % of float short is the crowding. It says how much of the tradeable supply is already sold short, which is what makes covering move a price.
- Days to cover is how many normal sessions the short base would need to buy back. A high number means the exit is narrow.
- Exposure on a put is notional, not money at risk. A $912M put is 5,000,000 shares of exposure; the premium paid is a fraction of that and is never disclosed.
- A crowded short is not a signal on its own. It says the disagreement is large, not who is right. Names stay heavily shorted for years.
- Float we cannot corroborate is left blank rather than shown. A stale share count inflates the percentage badly, and a wrong 205% is worse than an honest gap.
Research and commentary, not investment advice.