Most Shorted Stocks Today: October 19, 2026 — Top 25 Squeeze Candidates
CIFR leads the October 19, 2026 most-shorted-stocks leaderboard with a squeeze score of 90.8, while 13 names carry the FINRA threshold flag under sustained heavy short pressure.
CIFR tops the most-shorted-stocks board for October 19, 2026 with a squeeze score of 90.8, 21.7% short interest as a share of float, a 0.4% borrow fee, and 1.8 days to cover. The leaderboard is dominated by small- and mid-cap names with elevated short interest, and 13 of the top 25 show the FINRA threshold flag for sustained heavy short pressure. GRRR carries the highest borrow fee on the board at 1,427.6%.
October 19, 2026 Top 25 Short Squeeze Candidates
| Rank | Symbol | Squeeze Score | SI % Float | Borrow Fee | Days to Cover | T |
|---|---|---|---|---|---|---|
| 1 | CIFR | 90.8 | 21.7% | 0.4% | 1.8 | |
| 2 | RXRX | 90.1 | 30.8% | 0.5% | 4.9 | T |
| 3 | NBIS | 89.2 | 19.5% | 0.4% | 2.3 | T |
| 4 | FCEL | 87.1 | 33.2% | 0.3% | 3.6 | |
| 5 | GRRR | 84.7 | 19.5% | 1427.6% | 4.8 | T |
| 6 | IBRX | 84.5 | 30.5% | 0.5% | 7.6 | T |
| 7 | ASTS | 83.2 | 24.3% | 0.8% | 3.9 | T |
| 8 | HUT | 83.2 | 18.5% | 0.3% | 3.2 | T |
| 9 | IREN | 82.1 | 23.6% | 0.4% | 1.8 | |
| 10 | WULF | 81.9 | 31.2% | 0.5% | 3.4 | |
| 11 | PRME | 81.7 | 27.9% | 0.5% | 6.2 | T |
| 12 | LEU | 80.7 | 30.9% | 0.5% | 7.4 | T |
| 13 | NVAX | 79.3 | 32.3% | 0.4% | 5.3 | T |
| 14 | TE | 77.2 | 39.6% | 1.2% | 4.1 | |
| 15 | WRBY | 75.0 | 19.5% | 0.4% | 5.2 | T |
| 16 | CLSK | 74.8 | 30.9% | 0.3% | 4.5 | T |
| 17 | ARCT | 73.5 | 20.6% | 0.5% | 7.2 | T |
| 18 | CRBP | 72.3 | 23.1% | 0.4% | 3.5 | T |
| 19 | INDI | 71.8 | 28.5% | 0.9% | 11.1 | T |
| 20 | CABA | 71.6 | 27.3% | 0.4% | 6.9 | |
| 21 | BTDR | 70.8 | 38.1% | 0.4% | 6.2 | T |
| 22 | TWST | 69.9 | 19.1% | 0.3% | 3.3 | |
| 23 | CORZ | 69.2 | 22.5% | 0.4% | 4.7 | T |
| 24 | IMUX | 69.2 | 17.3% | 0.8% | 4.5 | T |
| 25 | USAR | 68.2 | 23.7% | 328.2% | 3.3 | T |
1. CIFR — Squeeze Score 90.8
CIFR leads the board with a squeeze score of 90.8 on October 19, 2026. Short interest stands at 21.7% of float, and the borrow fee is 0.4% annualized. Days to cover sit at 1.8. The stock is down 31.2% over five days and trades at 8.98. This is a high-squeeze-score setup with modest borrow costs and relatively quick cover time, meaning a positive catalyst that forces covering could move the price quickly given the tight float utilization of 21.7%.
2. RXRX — Squeeze Score 90.1
RXRX posts a squeeze score of 90.1 with short interest at 30.8% of float. The borrow fee is 0.5% annualized, and days to cover reach 4.9. The name trades at 3.465 and is down 10.0% over five days. It carries the FINRA threshold flag. This is a high-short-interest setup with elevated short volume pressure, where borrow availability tightening further could accelerate covering pressure.
3. NBIS — Squeeze Score 89.2
NBIS scores 89.2 with short interest at 19.5% of float and a borrow fee of 0.4%. Days to cover are 2.3. The stock trades at 165.47 and is down 19.0% over five days, with the FINRA threshold flag active. This is a high-priced name with meaningful short interest and low borrow cost, where a positive catalyst forcing covering could compress shorts rapidly given the short days-to-cover window.
4. FCEL — Squeeze Score 87.1
FCEL records a squeeze score of 87.1 with short interest at 33.2% of float, the highest on today's board. The borrow fee is 0.3% annualized, and days to cover are 3.6. The stock trades at 13 and is down 21.3% over five days. This is a high-short-interest setup without the threshold flag, where the large short interest relative to float creates squeeze mechanics if borrow availability tightens further.
5. GRRR — Squeeze Score 84.7
GRRR scores 84.7 with short interest at 19.5% of float and the highest borrow fee on the board at 1,427.6% annualized. Days to cover are 4.8. The stock trades at 7.78 and is down 25.8% over five days, carrying the FINRA threshold flag. This is an extreme-fee setup where shorts are paying a substantial stock-loan cost, and any positive catalyst that forces covering could trigger rapid short-covering given the elevated borrow expense.
What the T Flag Means
T indicates the symbol shows sustained heavy short pressure on the FINRA Consolidated NMS daily short-volume file, where more than 50% of recent volume was short-side. See the full scoring breakdown at /methodology/short-squeeze-score.
How the Score Is Built
The squeeze score weights 35% short interest as a share of float from FINRA, 25% borrow fee, 20% float utilization, 15% days to cover, and 5% 5-day momentum. Data is attributed to FINRA and SEC only. Read the methodology at /methodology/short-squeeze-score.
What Changed vs the Previous Record
NVAX drops out of the top 5 (was rank 5, score 84.2).
For the live leaderboard, visit the live leaderboard, and for historical records see the full daily archive.