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NPO · Enpro Inc. · Short Interest

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$306.26 -1.46 (-0.47%) At close · Sep 30
Market Cap
$6.59B
Shares
21.17M
Volume · Sep 30 174.36K Avg daily vol (3M) 193.97K

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

NPO Latest Reported Short Interest

FINRA reported 554,905 NPO shares sold short as of the September 15, 2026 settlement date, an increase of 59,470 shares. Days to cover was 3.91 based on FINRA's reported average daily volume.

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

NPO Short Interest Forecast

Equibles' model estimates 570,069 shares sold short for the September 30, 2026 settlement, +2.7% versus the latest reported position, with a likely range of 492,318 to 653,150 shares. This model prediction uses FINRA data through September 30, 2026; FINRA's official release is expected October 9, 2026.

Model estimate

Expected Sep 30 short interest

as of Sep 30 Medium confidence 58% chance it rises
570,069 +2.7% vs reported
Likely range 492,318 to 653,150 The latest estimate appears in the chart below. Official release expected Oct 9. Methodology
Short Squeeze Score
58/100
Short interest 2.6% of shares — P54 Days to cover 3.9 — P54 Price vs VWAP -4.3% — P57 Short-volume trend +11.8% — P84 Short interest change +12.0% — P77 Worst FTD 0.00% of shares — P20

Positioning score 57.8 + 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 (2026-09-15). 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 2026-10-01 13:09 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
2026-10-15 Scheduled
FINRA publishes Oct 26
— — — —
2026-09-30 Scheduled
FINRA publishes Oct 9
— — — —
2026-09-15 554,905 495,435 +59,470 3.91
2026-08-31 495,435 460,510 +34,925 3.43
2026-08-14 460,510 447,413 +13,097 2.23
2026-07-31 447,413 422,814 +24,599 2.03
2026-07-15 422,814 455,532 -32,718 1.54
2026-06-30 455,532 374,045 +81,487 1.02
2026-06-15 374,045 379,436 -5,391 1.92
2026-05-29 379,436 355,334 +24,102 2.04
2026-05-15 355,334 335,310 +20,024 1.46
2026-04-30 335,310 357,965 -22,655 1.38
2026-04-15 357,965 386,857 -28,892 1.16
2026-03-31 386,857 353,791 +33,066 1.61
2026-03-13 353,791 312,673 +41,118 1.61
2026-02-27 312,673 381,301 -68,628 1.31
2026-02-13 381,301 420,850 -39,549 1.46
2026-01-30 420,850 450,920 -30,070 2.54
2026-01-15 450,920 438,526 +12,394 2.62
2025-12-31 438,526 483,433 -44,907 2.11
2025-12-15 483,433 504,845 -21,412 3.19
2025-11-28 504,845 497,522 +7,323 3.00
2025-11-14 497,522 385,545 +111,977 2.33
2025-10-31 385,545 425,001 -39,456 2.00
2025-10-15 425,001 414,506 +10,495 1.91

Full FINRA short interest reporting calendar

Showing 1–23 of 23 settlements
Key facts CIK 1164863 CUSIP 29355X107 13F (30d) 13 filings 10 filers Visit website Investor relations