Top Short-Squeeze Candidates Today: September 15, 2026 — 7-Factor Leaderboard
INDI leads Tapeboard's September 15, 2026 squeeze leaderboard with a 44.2 composite score, on a day dominated by high short-interest, threshold-listed names with deeply negative five-day momentum.
TL;DR: As of market close on September 15, 2026, INDI leads Tapeboard's 7-factor squeeze leaderboard with a score of 44.2/100, driven by its 30.3% short interest as a percentage of float.
Tapeboard's daily squeeze scan ranked 25 stocks by composite score on September 15, 2026, combining seven factors: short interest as a percentage of float, annualized borrow fee, float utilization, the FINRA Consolidated NMS short-volume ratio, days to cover, five-day price momentum, and week-over-week borrow-fee change — each z-scored against a live ~500-stock universe. The dominant pattern today: every one of the top 25 sits on the FINRA threshold, and the leaders pair elevated short interest with steeply negative five-day momentum — the classic setup where shorts are pressing a falling name and any reversal forces covering. This is a composite short squeeze ranking, not a raw short-interest sort.
Today's September 15, 2026 Squeeze Score Leaderboard
| Rank | Symbol | Squeeze Score | SI % Float | Borrow Fee | Days to Cover | Mom 5d | T |
|---|---|---|---|---|---|---|---|
| 1 | INDI | 44.2 | 30.3% | — | 8.8 | -12.0% | T |
| 2 | CRBP | 43.6 | 14.8% | — | 3.7 | — | T |
| 3 | PLAY | 42.1 | 32.5% | — | 6.7 | -22.4% | T |
| 4 | KRYS | 41.9 | 14.3% | 0.3% | 15.3 | -4.2% | T |
| 5 | PCRX | 41.4 | 21.7% | 1.9% | 17.0 | -6.9% | T |
| 6 | SVRA | 41.2 | 31.8% | 1.7% | 24.3 | -4.9% | T |
| 7 | OCGN | 40.8 | 31.0% | 2.1% | 28.2 | -25.3% | T |
| 8 | WKHS | 40.1 | 24.8% | 27.2% | 9.3 | -1.6% | T |
| 9 | SES | 39.7 | 15.6% | 1.3% | 4.7 | — | T |
| 10 | RUM | 39.5 | 19.2% | 4.3% | 4.7 | — | T |
| 11 | TROW | 39.2 | 12.5% | 0.4% | 20.5 | — | T |
| 12 | CSIQ | 39.2 | 40.6% | — | 8.7 | -11.8% | T |
| 13 | EH | 39.0 | 16.0% | 1.8% | 10.2 | -5.8% | T |
| 14 | RGC | 38.6 | 1.7% | 221.5% | 8.1 | — | T |
| 15 | FAF | 38.5 | 6.1% | 0.3% | 10.0 | — | T |
*Source: Tapeboard composite squeeze model, September 15, 2026. Seven factors z-scored vs a ~500-stock universe. Short interest per FINRA settlement schedule; borrow fees from IBKR stock-loan availability; short-volume from FINRA Consolidated NMS. Not investment advice.*
What Drove Today's Rankings
Across the top 10, the dominant signal is high short interest as a percentage of float — seven of the ten sit above 19%, with CSIQ at 40.6% the highest on the whole board — combined with threshold-list status and negative five-day momentum. The outlier is KRYS, which ranks fourth despite a borrow fee of just 0.3%; its 41.9 score is carried by 14.3% SI of float and a 15.3 days-to-cover reading. Because short interest carries a 35% weight and the borrow fee 25%, names like INDI and PLAY can lead the board even where fee data is unavailable and the score reweights across the remaining factors.
Top 5 Names
1. INDI — Squeeze Score 44.2/100
INDI's primary driver is short interest at 30.3% of float, one of the heavier readings on today's board. Its secondary signal is a -12.0% five-day momentum print paired with an 8.8 days-to-cover figure, while its FINRA threshold flag confirms sustained short-side volume. With no borrow-fee observation, the score reweighted across the remaining factors.
2. CRBP — Squeeze Score 43.6/100
CRBP's 43.6 composite rests on 14.8% short interest of float and a low 3.7 days to cover. Both its borrow fee and five-day momentum are unreported, so the score reweighted across the remaining factors. The biotechnology name carries an active FINRA threshold flag, indicating short-side volume above 50% of recent activity.
3. PLAY — Squeeze Score 42.1/100
PLAY's lead component is 32.5% short interest of float, the second-heaviest reading in the top five. Its secondary signal is a -22.4% five-day momentum slide against 6.7 days to cover, with the threshold flag active. No borrow-fee print was available, so the score reweighted across the remaining factors.
4. KRYS — Squeeze Score 41.9/100
KRYS stands out for its 15.3 days to cover, the longest unwind runway in the top four, against 14.3% short interest of float. Its secondary signal is a cheap 0.3% annualized borrow fee alongside -4.2% five-day momentum. The threshold flag is active, and traders reviewing setups like this often journal them in tools such as TradeZella.
5. PCRX — Squeeze Score 41.4/100
PCRX combines 21.7% short interest of float with a 17.0 days-to-cover reading, the second-longest in the top five. Its secondary signal is a 1.9% borrow fee that fell 0.54 percentage points over five days, alongside -6.9% momentum. The name is on the FINRA threshold list.
Factor Breakdown: How the Score Is Built
The composite weights seven inputs: 35% SI% of float (FINRA), 25% borrow fee (IBKR), 20% float utilization, 15% days to cover, and 5% five-day momentum (Schwab), with the remaining weight split across the FINRA short-volume ratio and five-day fee change. Each factor is z-scored against a ~500-stock universe before weighting. Read the methodology for full detail.
Frequently Asked Questions
What are the top short-squeeze candidates today?
As of September 15, 2026, the top three are INDI (44.2 score, 30.3% SI of float, no fee print), CRBP (43.6, 14.8% SI, no fee print), and PLAY (42.1, 32.5% SI, no fee print). All three carry active FINRA threshold flags.
How does Tapeboard calculate its squeeze score?
Seven factors — short interest, borrow fee, float utilization, short-volume ratio, days to cover, five-day momentum, and five-day fee change — are each z-scored against a ~500-stock universe, then combined at fixed weights (35% SI, 25% fee, 20% utilization, 15% DTC, 5% momentum). Missing components reweight across the remaining factors.
When does short-interest data update?
Short interest updates on the FINRA settlement schedule and lags roughly two weeks. Borrow fees update next-day from IBKR stock-loan availability, and threshold status refreshes daily from FINRA Consolidated NMS data.
Data and Methodology
- Squeeze score: Tapeboard composite, recomputed nightly.
- Short interest: FINRA, ~2-week settlement lag.
- Borrow fee: IBKR stock-loan availability, daily.
- Short-volume threshold: FINRA Consolidated NMS, daily.
- Momentum: Schwab, end-of-day.
See today's highest borrow fees for the full hard-to-borrow ranking, or the live squeeze leaderboard for tomorrow's update.
This post is for educational and informational purposes only and is not investment advice. Short selling carries unlimited downside risk. A quantitative composite does not predict price, and past squeezes are not indicative of future moves. Editor: Marcus Reilly.