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XFOR · X4 Pharmaceuticals, Inc · Short Interest

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$3.50 +0.10 (+2.94%) At close · Sep 11
Market Cap
$347.01M
Shares
99.15M

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

XFOR Latest Reported Short Interest

FINRA reported 7,190,058 XFOR shares sold short as of the August 31, 2026 settlement date, an increase of 25,396 shares. Days to cover was 12.84 based on FINRA's reported average daily volume.

Official FINRA short-interest data · share counts are restated for subsequent splits of this listing

XFOR Short Interest Forecast

Equibles' model estimates 8,444,134 shares sold short for the September 15, 2026 settlement, +17.4% versus the latest reported position, with a likely range of 7,204,953 to 10,448,389 shares. This model prediction uses FINRA data through September 11, 2026; FINRA's official release is expected September 24, 2026.

Model estimate

Expected Sep 15 short interest

as of Sep 11 High confidence 87% chance it rises
8,444,134 +17.4% vs reported
Likely range 7,204,953 to 10,448,389 The latest estimate appears in the chart below. Official release expected Sep 24. Methodology
Short Squeeze Score
65/100
Short interest 7.3% of shares — P82 Days to cover 12.8 — P93 Price vs VWAP -12.7% — P22 Short-volume trend +5.1% — P69 Short interest change +0.4% — P47 Worst FTD 0.00% of shares — P37

Positioning score 65.1 + catalyst boost 0 (total capped at 100). This is a screening index, not a probability of a squeeze.

Method and coverage limits

Factor percentiles compare eligible primary operating-company stocks reporting short interest at the latest settlement date (2026-08-31). The weighted mean uses short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, and fails-to-deliver 10%. Missing factors redistribute their weight; incomplete coverage is not evidence of low risk. Price, volume, and earnings boosts add 10 each, capped at 20.

Shares outstanding are not free float. Borrow fees, utilization, lendable supply, recalls, and dealer inventory are not measured. Short-sale volume does not measure the change in open shorts; fails to deliver are not a borrow-cost measurement; price vs VWAP does not establish short sellers' entry prices. Earnings can move prices in either direction.

The weights are judgment-based, not calibrated to future squeeze outcomes. The separate options assessment below does not change this universe ranking.

Options positioning & squeeze sensitivity

Nearest expiration after today within 30 calendar days; same-day expirations and later maturities are excluded.

Open interest is incomplete, stale, or dated inconsistently; positioning totals are unavailable.

Open interest has both a buyer and a seller; it does not reveal dealer hedge direction. Gross gamma sums both calls and puts without netting and uses a local 1% price-change approximation. It measures sensitivity, not predicted buying or a squeeze probability.

Assessment prepared 2026-09-13 04:24 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

Short Interest History

Settlement Date Current Position Previous Position Change Days to Cover
2026-09-30 Scheduled
FINRA publishes Oct 9
2026-09-15 Scheduled
FINRA publishes Sep 24
2026-08-31 7,190,058 7,164,662 +25,396 12.84
2026-08-14 7,164,662 7,300,120 -135,458 8.92
2026-07-31 7,300,120 6,501,966 +798,154 12.75
2026-07-15 6,501,966 5,507,057 +994,909 9.79
2026-06-30 5,507,057 4,180,487 +1,326,570 3.47
2026-06-15 4,180,487 3,371,418 +809,069 9.92
2026-05-29 3,371,418 2,923,580 +447,838 9.28
2026-05-15 2,923,580 3,117,372 -193,792 8.49
2026-04-30 3,117,372 3,144,815 -27,443 8.35
2026-04-15 3,144,815 3,123,686 +21,129 7.58
2026-03-31 3,123,686 3,498,089 -374,403 7.16
2026-03-13 3,498,089 3,456,380 +41,709 5.65
2026-02-27 3,456,380 3,379,356 +77,024 6.15
2026-02-13 3,379,356 3,121,800 +257,556 6.51
2026-01-30 3,121,800 3,094,769 +27,031 12.59
2026-01-15 3,094,769 3,001,615 +93,154 7.32
2025-12-31 3,001,615 3,155,605 -153,990 2.92
2025-12-15 3,155,605 2,482,029 +673,576 4.22
2025-11-28 2,482,029 1,942,100 +539,929 5.09
2025-11-14 1,942,100 1,492,168 +449,932 3.47
2025-10-31 1,492,168 1,785,248 -293,080 1.00
2025-10-15 1,785,248 2,047,594 -262,346 4.57
2025-09-30 2,047,594 1,892,311 +155,283 4.73
2025-09-15 1,892,311 1,554,621 +337,690 3.06

Full FINRA short interest reporting calendar

Showing 1–24 of 24 settlements
Key facts CIK 1501697 CUSIP 98420X202 13F (30d) 41 filings 41 filers Visit website Investor relations