Most Shorted Stocks Today: May 8, 2026 — Top 25 Squeeze Candidates
Groupon (GRPN) tops Tapeboard's May 8, 2026 most-shorted leaderboard with an 89.3 squeeze score, 59.4% short interest to float, and 9.07 days to cover, leading a board where 21 of the top 25 names sit on the FINRA threshold list.
Groupon (GRPN) sits at the top of Tapeboard's most-shorted leaderboard for May 8, 2026 with a squeeze score of 89.3, anchored by 59.4% short interest as a fraction of float, 9.07 days to cover, and a 1.0% annualized borrow fee. The day's pattern is concentration: 21 of the top 25 names are flagged on the FINRA threshold list, five names carry SI-to-float above 35%, and two — Rumble (RUM) and Beyond Meat (BYND) — show borrow fees above 20% annualized. Heavy short pressure is broad-based today rather than isolated to one name.
May 8, 2026 Top 25 Short Squeeze Candidates
| Rank | Symbol | Squeeze Score | SI % Float | Borrow Fee | Days to Cover | T |
|---|---|---|---|---|---|---|
| 2 | GRPN | 89.3 | 59.4% | 1.0% | 9.1 | T |
| 3 | PLAY | 79.7 | 60.7% | 0.5% | 3.9 | T |
| 4 | CLSK | 72.8 | 46.3% | 0.4% | 4.3 | T |
| 5 | NTLA | 72.3 | 36.8% | 0.4% | 12.4 | |
| 6 | RXRX | 71.9 | 34.9% | 1.5% | 14.0 | T |
| 7 | INDI | 71.9 | 30.6% | 4.2% | 18.4 | T |
| 8 | RUM | 71.0 | 26.0% | 28.6% | 17.5 | T |
| 10 | BTDR | 70.0 | 36.1% | 0.8% | 6.7 | |
| 11 | IBRX | 69.4 | 36.1% | 4.5% | 6.2 | T |
| 12 | EVGO | 68.3 | 34.9% | 0.7% | 9.6 | T |
| 13 | NVAX | 67.8 | 28.5% | 0.5% | 12.4 | T |
| 14 | AI | 67.2 | 33.1% | 0.4% | 9.2 | |
| 15 | RH | 66.4 | 38.1% | 0.4% | 3.1 | T |
| 16 | ARCT | 66.3 | 33.2% | 0.6% | 11.9 | T |
| 17 | SNDX | 65.6 | 26.7% | 0.3% | 14.3 | T |
| 18 | TRIP | 65.6 | 37.0% | 0.4% | 7.4 | T |
| 19 | BEAM | 65.4 | 33.5% | 0.3% | 10.4 | T |
| 20 | H | 65.0 | 39.1% | 0.5% | 9.0 | T |
| 21 | TWST | 64.8 | 30.5% | 0.3% | 12.2 | |
| 22 | UPST | 64.7 | 33.4% | 0.4% | 6.0 | T |
| 23 | ABCL | 64.2 | 20.3% | 2.0% | 19.0 | T |
| 24 | CRSP | 63.9 | 27.0% | 0.5% | 14.0 | T |
| 25 | BYND | 63.7 | 31.1% | 20.0% | 4.6 | T |
| 26 | XRX | 63.5 | 28.1% | 1.6% | 10.5 | T |
| 27 | ASAN | 62.6 | 32.2% | 0.4% | 5.0 | T |
Top 5 Names: What the Data Says
2. GRPN — Squeeze Score 89.3
GRPN leads the May 8, 2026 board at 89.3 with 59.4% short interest as a fraction of float, 47.5% float utilization, 9.07 days to cover, and a 1.0% borrow fee. Five-day momentum is +19.4% with the stock at $17.91. This is a classic high-SI / cheap-borrow setup — the cost to short remains low, but the public short side is enormous relative to available float, and momentum is already pushing the tape higher. If borrow availability tightens or the move extends, the days-to-cover figure says the exit is crowded for any short squeeze attempt.
3. PLAY — Squeeze Score 79.7
PLAY carries the highest SI/float on the entire board at 60.7%, paired with a 0.5% borrow fee, 3.89 days to cover, 33.7% float utilization, and 5-day momentum of -11.3% at $10.30. This is a heavy-short-but-easily-coverable profile: the short side is enormous, but recent volume is high enough that even 60% of the float held short clears in roughly four sessions. A squeeze here would require borrow tightness or a hard upside catalyst — without one, this is simply a heavy short position rather than an unstable one.
4. CLSK — Squeeze Score 72.8
CLSK shows 46.3% SI/float, a 0.4% borrow fee, 4.27 days to cover, 34.2% float utilization, and 5-day momentum of +16.7% at $14.23. The threshold flag is on. Crypto-mining names like CleanSpark trade with the underlying bitcoin tape, so the borrow remains cheap until BTC moves; if BTC rallies and the equity follows, 46% SI clears slowly even at the modest 4.3 DTC because price-pressure forces aggressive covering rather than orderly unwind.
5. NTLA — Squeeze Score 72.3
NTLA registers 36.8% SI/float, 12.41 days to cover, a 0.4% borrow fee, and 5-day momentum of +6.3% at $14.14. This is the only top-5 name not on the threshold list. The setup is biotech-binary: float utilization at 34.4% is meaningful, the borrow is cheap so shorts have no carrying-cost urgency, and 12.4 DTC means a positive readout would force covering into a thin tape over multiple sessions.
6. RXRX — Squeeze Score 71.9
RXRX shows 34.9% SI/float, a 1.5% borrow fee — meaningfully above the board median — and 14.0 days to cover at $3.30. Five-day momentum is -2.1%. This is the lowest-priced name in the top 5 and the longest DTC at this rank, with the borrow fee already starting to bite. If the fee continues climbing on borrow scarcity, marginal shorts close before the cost compounds, which is the mechanical trigger for a fee-driven squeeze rather than a price-driven one.
Highest Borrow Fees on May 8, 2026
Two names dominate the borrow-cost dimension: RUM at 28.6% annualized and BYND at 20.0%. After those, fees fall off sharply — IBRX at 4.5%, INDI at 4.2%, ABCL at 2.0%, XRX at 1.6%, RXRX at 1.5%, GRPN at 1.0%. The remaining 17 names sit under 1%. High fees concentrated at RUM and BYND mean those two carry the greatest borrow-driven cover risk; the rest are heavy-short / cheap-cost positions where a price catalyst would do the squeezing, not the borrow desk.
Stocks Flagged on the FINRA Threshold List
Twenty-one of today's top 25 are on the threshold list: GRPN, PLAY, CLSK, RXRX, INDI, RUM, IBRX, EVGO, NVAX, RH, ARCT, SNDX, TRIP, BEAM, H, UPST, ABCL, CRSP, BYND, XRX, and ASAN. The four names without the flag are NTLA, BTDR, AI, and TWST. The "T" column flags symbols on the FINRA Consolidated NMS daily short-volume file where short-side trades have exceeded 50% of total reported volume across recent sessions — sustained heavy short pressure rather than a single-day spike. Full breakdown at /methodology/short-squeeze-score.
How the Tapeboard Squeeze Score Is Calculated
The score blends 35% SI/float (Yahoo Finance), 25% borrow fee (IBKR via iborrowdesk.com), 20% float utilization, 15% days to cover, and 5% 5-day price momentum (Schwab). Microcaps under $1, recent reverse-split survivors, and rows missing fee or short-interest data are filtered out before ranking, so the leaderboard reflects names with both heavy positioning and reliable inputs. Full weighting and quality-gate logic at /methodology/short-squeeze-score.
The full ranking refreshes daily — see the live leaderboard for the next snapshot on May 9.