Most Shorted Stocks Today: October 13, 2026 — Top 25 Squeeze Candidates
On October 13, 2026, SES tops the most shorted stocks leaderboard with a squeeze score of 95.3, 18.0% short interest, and a 32.7% borrow fee, while 20 of the top 25 names sit on the FINRA threshold list.
SES leads the most shorted stocks board on October 13, 2026 with a squeeze score of 95.3, an 18.0% short interest as a percent of float, a 32.7% borrow fee, and a +26.6% five-day momentum reading. The broader pattern today is threshold concentration: 20 of the top 25 names carry the FINRA threshold flag, and the two highest fees on the board, SES at 32.7% and GRRR at 14.5%, sit well above the sub-1% fees typical of the rest of the list.
October 13, 2026 Top 25 Short Squeeze Candidates
| Rank | Symbol | Squeeze Score | SI % Float | Borrow Fee | Days to Cover | T |
|---|---|---|---|---|---|---|
| 1 | SES | 95.3 | 18.0% | 32.7% | 2.0 | T |
| 2 | FCEL | 93.5 | 32.1% | 0.4% | 3.6 | T |
| 3 | CIFR | 92.7 | 21.7% | 0.4% | 2.0 | |
| 4 | ASTS | 89.7 | 24.3% | 0.8% | 4.3 | T |
| 5 | NVAX | 85.8 | 32.3% | 0.4% | 5.4 | T |
| 6 | PRME | 83.9 | 27.9% | 0.5% | 6.5 | T |
| 7 | IMUX | 83.4 | 17.3% | 0.8% | 4.4 | T |
| 8 | GRRR | 79.8 | 19.5% | 14.5% | 6.3 | T |
| 9 | NBIS | 79.6 | 19.5% | 0.3% | 2.7 | T |
| 10 | RXRX | 78.7 | 30.8% | 0.5% | 5.2 | T |
| 11 | HUT | 77.9 | 18.5% | 0.4% | 3.7 | T |
| 12 | TE | 76.1 | 39.6% | 1.7% | 4.2 | |
| 13 | SMR | 75.9 | 22.5% | 0.4% | 2.1 | T |
| 14 | RCKT | 75.5 | 17.3% | 0.3% | 6.4 | T |
| 15 | TWST | 75.0 | 19.1% | 0.3% | 3.2 | T |
| 16 | IREN | 74.2 | 23.6% | 0.5% | 2.1 | |
| 17 | WULF | 73.5 | 31.2% | 0.4% | 4.3 | T |
| 19 | OKLO | 71.6 | 21.9% | 0.4% | 3.3 | T |
| 20 | USAR | 71.2 | 23.7% | 2.6% | 3.4 | T |
| 21 | AGEN | 69.9 | 17.0% | 0.5% | 5.8 | T |
| 22 | IBRX | 69.5 | 30.5% | 0.5% | 8.4 | T |
| 23 | CABA | 68.6 | 27.3% | 0.4% | 6.7 | |
| 24 | VKTX | 67.9 | 22.9% | 0.4% | 2.7 | |
| 25 | NTLA | 67.5 | 33.6% | 0.3% | 7.6 | T |
Highest Borrow Fees on October 13, 2026
1. SES — Squeeze Score 95.3
SES is the standout setup of the day: 18.0% of the float is short, the borrow fee is 32.7%, days to cover is just 2.0, and the stock is up 26.6% over five sessions at a $0.80 price. This is the classic high-fee, rising-price squeeze configuration, where shorts are paying a steep carry cost while the trade moves against them. If borrow availability tightens further or the fee climbs toward 40%, forced covering becomes mechanically more likely.
2. FCEL — Squeeze Score 93.5
FCEL carries 32.1% of its float short with a cheap 0.4% borrow fee and 3.6 days to cover at $15.57. This is a high-SI, low-fee setup, meaning shorts are crowded but not yet under cost pressure, and the stock is down 25.0% over five days. A squeeze here needs a positive catalyst that forces the crowded short base to cover into thin upside liquidity.
3. CIFR — Squeeze Score 92.7
CIFR shows 21.7% short interest, a 0.4% borrow fee, and only 2.0 days to cover at $11.30, with five-day momentum of -26.8%. The low days-to-cover reading means shorts could exit quickly if sentiment flips, which cuts both ways: fast rallies unwind fast. Notably, CIFR is one of the few top names not on the FINRA threshold list today.
4. ASTS — Squeeze Score 89.7
ASTS combines 24.3% short interest, a 0.8% borrow fee, and 4.3 days to cover at $47.05, with momentum down 25.4% over five days. This is a threshold-flagged, high-SI large-float name where shorts are winning the recent tape. Any reversal catalyst that gaps the price up would put 4.3 days of covering volume on the wrong side of the move.
5. NVAX — Squeeze Score 85.8
NVAX posts the highest short interest in the top five at 32.3% of float, with a 0.4% borrow fee and 5.4 days to cover at $12.66. Unlike the other top names, momentum is positive at +13.3% over five days, so shorts are already underwater on the recent move. If the price continues higher and borrow supply thins, the elevated days-to-cover figure amplifies the covering bid.
What the T Flag Means
The T column marks symbols on the FINRA threshold list, where short-side volume has exceeded 50% of total volume on the FINRA Consolidated NMS daily short-volume file within the last seven trading days. Sustained threshold presence signals persistent, heavy short pressure rather than a one-day spike. See /methodology/short-squeeze-score for the full scoring breakdown.
How the Score Is Built
The squeeze score weights five inputs: 35% short interest as a percent of float (FINRA), 25% borrow fee, 25% float utilization, 15% days to cover, and 5% five-day momentum. Short interest and threshold data come from FINRA and SEC filings. Traders who track how these setups resolve over time often log them in a trading journal; see our TradeZella comparison for one option. Full methodology: /methodology/short-squeeze-score.
What Changed vs the Previous Record
SES enters the top 5 at rank 1 with a score of 95.3, new to the leaderboard. CIFR's score moved from 70.5 to 92.7 since the previous record. TWST drops out of the top 5, where it previously held rank 3 with a score of 88.4. RXRX drops out of the top 5, where it previously held rank 4 with a score of 88.2.
This short squeeze record is archived daily; check the live leaderboard for current data and the full daily archive for prior records.