Most Shorted Stocks Today: May 27, 2026 — Top 25 Squeeze Candidates
Groupon (GRPN) tops Tapeboard's most shorted stocks list on May 27, 2026 with a perfect 100 squeeze score, 59.2% short interest, and 58.1% float utilization, leading a board where 18 of 25 names sit on the FINRA threshold list.
May 27, 2026 Top 25 Short Squeeze Candidates
Groupon (GRPN) tops Tapeboard's most shorted stocks board on May 27, 2026 with a perfect squeeze score of 100, 59.2% short interest as a percent of float, and 58.1% float utilization — the densest combined positioning of any short squeeze candidate on today's board. The dominant pattern is concentrated short positioning rather than expensive borrow: 18 of 25 names sit on the FINRA threshold list for sustained heavy short-side volume, while borrow fee costs stay sub-1% for everything outside four hard-to-borrow outliers — ENVB at 255.9%, GOVX at 679.7%, LCID at 14.2%, and IBRX at 2.6%.
| Rank | Symbol | Squeeze Score | SI % Float | Borrow Fee | Days to Cover | T |
|---|---|---|---|---|---|---|
| 1 | GRPN | 100 | 59.2% | 0.8% | 6.7 | T |
| 2 | ENVB | 88.5 | 45.7% | 255.9% | 0.1 | |
| 3 | RH | 88.5 | 55.8% | 0.4% | 3.2 | T |
| 4 | GOVX | 86.8 | 8.8% | 679.7% | 2.6 | T |
| 6 | CLSK | 85.2 | 49.5% | 0.3% | 4.5 | |
| 7 | RXRX | 81.5 | 34.2% | 0.9% | 15.0 | T |
| 8 | NVAX | 80.7 | 30.3% | 0.6% | 15.6 | T |
| 9 | BTDR | 80.4 | 34.7% | 0.6% | 8.2 | |
| 10 | EVGO | 78.9 | 33.5% | 0.7% | 11.9 | T |
| 12 | AI | 78.8 | 35.2% | 0.4% | 10.2 | |
| 13 | NTLA | 78.4 | 39.3% | 0.4% | 6.8 | T |
| 14 | IBRX | 78.2 | 35.6% | 2.6% | 9.3 | T |
| 15 | INDI | 77.5 | 29.4% | 2.2% | 13.4 | T |
| 16 | PLAY | 75.7 | 34.0% | 0.4% | 4.5 | |
| 17 | ARCT | 75.3 | 28.2% | 0.6% | 15.5 | T |
| 18 | CSIQ | 74.9 | 31.4% | 0.8% | 6.7 | T |
| 19 | LCID | 74.6 | 35.8% | 14.2% | 3.0 | |
| 21 | PCRX | 74.3 | 28.6% | 0.4% | 14.9 | T |
| 22 | TRIP | 73.6 | 31.9% | 0.4% | 9.1 | T |
| 23 | UPST | 73.5 | 32.3% | 0.5% | 6.2 | T |
| 24 | TWST | 73.5 | 28.7% | 0.3% | 11.0 | T |
| 25 | BEAM | 73.4 | 31.5% | 0.3% | 9.7 | T |
| 26 | PRME | 73.3 | 21.5% | 0.4% | 16.4 | T |
| 27 | CRSP | 72 | 26.7% | 0.5% | 12.9 | T |
| 28 | IOVA | 71.8 | 27.5% | 0.4% | 8.1 |
Top 5 Short Squeeze Setups for May 27, 2026
1. GRPN — Squeeze Score 100
GRPN is the only name on today's board with a perfect 100 score and the cleanest textbook setup: 59.2% short interest, 58.1% float utilization, 6.65 days to cover on recent volume, and a 23.3% five-day price advance into a FINRA threshold flag at $21.65. The borrow fee is unremarkable at 0.76%, meaning shorts aren't yet paying to stay short — but with nearly six in ten available shares already lent out, any further increase in demand to borrow would force locate failures or fee resets. A continued momentum push above the 5-day high would compress the ~6.7-day cover runway and force mechanical buy-ins.
2. ENVB — Squeeze Score 88.5
ENVB is the day's hard-to-borrow standout, with a 255.9% annualized borrow fee against 45.7% short interest at a $2.14 price. The 0.09 days-to-cover reading is a function of unusually heavy daily volume rather than thin positioning — shorts can technically exit in hours, but only if liquidity holds. This is the fee-driven setup: at 255.9%, any short held more than a few sessions is bleeding meaningfully on cost of carry, and a one-day rip on a coordinated bid can punch through stops faster than the cheap-to-borrow names. Not threshold-flagged today, so the pressure here is fee, not sustained volume.
3. RH — Squeeze Score 88.5
RH is the highest-priced name on the board at $142.84 and yet carries 55.8% short interest with a 17.6% five-day momentum push and a FINRA threshold flag. Float utilization sits at 38.1% with only 3.2 days to cover, meaning the short side is concentrated rather than mechanically trapped. The setup is asymmetric: borrow is cheap at 0.36%, so shorts are comfortable in the position, but a positive earnings revision or strategic announcement into this much short interest would force the kind of single-day repricing that resets the entire complex above the algorithmic stop layer.
4. GOVX — Squeeze Score 86.8
GOVX carries the highest borrow fee on today's board at 679.7%, despite a modest 8.8% short interest and only 7.3% float utilization at $2.61. With 32.8% five-day momentum and a threshold flag, this is a low-float biotech setup where the cost of staying short is the entire trade: at 679.7% annualized, every week held costs the short roughly 13% of position notional. Days to cover is only 2.55, so the book isn't trapped on volume — it's trapped on fee. Any borrow contraction or recall cascade forces immediate covering regardless of price action.
6. CLSK — Squeeze Score 85.2
CLSK is the Bitcoin-miner proxy in today's top tier — 49.5% short interest, 36.4% float utilization, 4.48 days to cover, and a 22.8% five-day move into $18.14. Borrow fee is cheap at 0.32%, so this is a momentum-and-positioning setup rather than a carry trade. Not on the FINRA threshold today, meaning short volume hasn't sustained above 50% of total volume across the required seven-session window, but the underlying short book is dense enough that a Bitcoin breakout or a sector-wide upgrade would force the same mechanical covering the threshold names already face.
Stocks Flagged on the FINRA Threshold List
The "T" column flags symbols on the FINRA Consolidated NMS daily short-volume threshold — names where short-side prints have exceeded 50% of total reported volume across the trailing seven trading days. Eighteen of today's 25 names carry the flag, including GRPN, RH, GOVX, RXRX, NVAX, EVGO, NTLA, IBRX, INDI, ARCT, CSIQ, PCRX, TRIP, UPST, TWST, BEAM, PRME, and CRSP. Threshold status doesn't predict direction — it confirms that selling pressure has been sustained and structural rather than a one-session blip. Full scoring breakdown at /methodology/short-squeeze-score.
How the Tapeboard Squeeze Score is Built
The 0–100 squeeze score blends five inputs by weight: 35% short interest as a percent of float (Yahoo Finance), 25% borrow fee (IBKR via iborrowdesk), 20% float utilization, 15% days to cover, and 5% five-day price momentum (Schwab). The blend is intentionally biased toward positioning over price: a name with deep short interest and a tight float scores high even on a quiet tape, because the mechanical risk of a forced cover is structural, not narrative. See /methodology/short-squeeze-score for the full breakdown and historical weightings.
Tomorrow's leaderboard updates on the live short squeeze tracker.