Short interest // FINRA, biweekly, dated

APT short interest

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Alpha Pro Tech, Ltd.

0%30%+0.73%Low short interest
0.73% of APT’s shares outstanding is sold short

74,739 shares short / 10,263,126 shares outstanding (share count as of 2026-10-29, 10-Q).

“Low” describes how crowded the short position is, not where the stock goes next. Percent of shares outstanding, not percent of float; where filings allow it, the float version appears below as a floor.

As of the 2026-10-30 settlement, which is 12 days ago. FINRA publishes twice a month on the seventh business day after settlement, so this cycle was published around 2026-11-10 and the next is expected around 2026-11-24. No free source anywhere has anything fresher, including sites that display this number next to a live price.

Shares sold short74,739
⊙
EVIDENCE — filed/published fact
SourceFINRA consolidated short interest
FieldcurrentShortPositionQuantity
As of2026-10-30 settlement
HowFile shrt20261030.csv in FINRA's catalog (posted ~7 business days after settlement).
Open the source document →
Prior settlement82,886
Change-9.8%
Days to coverShares short divided by average daily volume, both FINRA figures.2.47
⊙
INFERENCE — derived by arithmetic
SourceFINRA consolidated short interest
FieldcurrentShortPositionQuantity ÷ averageDailyVolumeQuantity
As of2026-10-30 settlement
HowComputed from FINRA’s two published operands. FINRA’s own daysToCoverQuantity field floors at 1.00 and is not used.
Open the source document →
Average daily volume (FINRA, the days-to-cover denominator)30,244
ExchangeNYSE American
Reg SHO threshold listPersistent settlement failures under Reg SHO Rule 203. A delivery-failure list, not a “naked shorting” list.Not on the list (2026-11-09)
Short interest, % of shares outstandingPercent of shares outstanding. Not percent of float, and the two are not the same number.0.73%
Shares outstandingfrom filings, as of 2026-10-2910,263,126

Short interest history

78 settlements on record, oldest 2023-08-15. Biweekly points, from FINRA’s own archive.

Dashed line at the 15 September 2026 settlement: FINRA began quoting every field of its short interest file. What it did to this history, and what we did

SettlementShares shortChange% of shares outDays to coverClose, USDValue short, USD
2026-10-3074,739-9.8%0.73%2.475.40403,591
2026-10-1582,886+85.8%0.81%0.695.72474,108
2026-09-3044,618-57.5%0.43%1.955.12228,444
2026-09-15105,043+3.7%1.03%4.335.29555,677
2026-08-31101,337+10.7%0.99%3.075.51558,367
2026-08-1491,543+40.9%0.90%1.915.43497,078
2026-07-3164,984+32.8%0.64%1.644.93320,371
2026-07-1548,942-34.8%0.48%0.835.12250,583
2026-06-3075,024-18.6%0.74%1.295.62421,635
2026-06-1592,181-41.8%0.90%1.365.32490,403
2026-05-29158,353-23.4%1.55%1.625.82921,614
2026-05-15206,846+121.8%2.02%0.755.491.1M
Show the other 66 settlements, back to 2023-08-15
SettlementShares shortChange% of shares outDays to coverClose, USDValue short, USD
2026-04-3093,276-4.0%0.91%4.444.60429,070
2026-04-1597,113+83.5%0.95%3.264.56442,835
2026-03-3152,930+113.6%0.52%1.044.44235,009
2026-03-1324,776-36.2%0.24%0.715.03124,623
2026-02-2738,836+112.6%0.38%1.255.21202,336
2026-02-1318,265-57.0%0.18%0.415.1994,795
2026-01-3042,430+48.9%0.42%0.815.04213,847
2026-01-1528,488+7.9%0.28%1.284.71134,178
2025-12-3126,391-19.7%0.25%0.984.44117,176
2025-12-1532,866-14.5%0.32%1.344.53148,883
2025-11-2838,461+99.1%0.37%1.344.60176,921
2025-11-1419,313-20.3%0.19%0.814.4986,715
2025-10-3124,230+8.7%0.23%1.424.55110,247
2025-10-1522,297-12.6%0.22%1.494.71105,019
2025-09-3025,511+2.0%0.25%1.014.79122,070
2025-09-1524,999-29.2%0.24%0.754.84120,995
2025-08-2935,288-12.7%0.34%1.524.78168,677
2025-08-1540,425-19.1%0.39%1.534.61186,359
2025-07-3149,959+33.1%0.48%2.804.86242,801
2025-07-1537,548-7.1%0.36%3.134.74177,978
2025-06-3040,404-1.7%0.39%2.734.69189,495
2025-06-1341,115+2.2%0.38%0.774.57187,896
2025-05-3040,233-0.5%0.37%0.874.72189,900
2025-05-1540,421-24.3%0.37%3.894.50181,895
2025-04-3053,421+39.3%0.49%4.314.38233,984
2025-04-1538,361+42.0%0.35%1.034.29164,569
2025-03-3127,024+2.9%0.25%1.175.00135,120
2025-03-1426,261-25.5%0.24%1.185.15135,244
2025-02-2835,263-33.3%0.32%0.695.40190,420
2025-02-1452,858+14.4%0.49%3.345.36283,319
2025-01-3146,221-11.9%0.43%1.965.35247,282
2025-01-1552,460+37.8%0.48%1.095.60294,028
2024-12-3138,071-7.0%0.35%1.055.29201,396
2024-12-1340,945-60.5%0.37%0.905.25214,961
2024-11-29103,765-21.0%0.94%4.835.30549,955
2024-11-15131,342+0.9%1.19%5.245.23686,919
2024-10-31130,223+3.7%1.18%6.815.59727,947
2024-10-15125,582+1.3%1.14%7.485.95747,213
2024-09-30123,971+0.7%1.13%4.625.70706,635
2024-09-13123,062-3.4%1.10%4.705.67697,762
2024-08-30127,451-4.1%1.14%3.045.96759,608
2024-08-15132,959+18.3%1.19%4.465.86779,140
2024-07-31112,426-2.4%1.01%4.125.84656,568
2024-07-15115,149-3.8%1.03%3.235.84672,470
2024-06-28119,703-4.2%1.07%1.85before stored barsno close to value it
2024-06-14124,958+2.6%1.07%2.63before stored barsno close to value it
2024-05-31121,738-0.2%1.04%1.76before stored barsno close to value it
2024-05-15121,966-10.7%1.04%1.49before stored barsno close to value it
2024-04-30136,529+13.7%1.17%4.93before stored barsno close to value it
2024-04-15120,110+8.5%1.03%1.39before stored barsno close to value it
2024-03-28110,661-4.5%0.97%1.20before stored barsno close to value it
2024-03-15115,931+8.8%1.01%1.72before stored barsno close to value it
2024-02-29106,580-28.1%0.93%1.57before stored barsno close to value it
2024-02-15148,166-4.8%1.29%3.56before stored barsno close to value it
2024-01-31155,685-55.9%1.36%1.94before stored barsno close to value it
2024-01-12352,670+5.7%3.08%4.99before stored barsno close to value it
2023-12-29333,806+31.9%2.87%6.57before stored barsno close to value it
2023-12-15253,031+3.7%2.17%3.45before stored barsno close to value it
2023-11-30243,990+0.9%2.09%6.77before stored barsno close to value it
2023-11-15241,894+7.7%2.08%6.36before stored barsno close to value it
2023-10-31224,574-6.2%1.93%10.98before stored barsno close to value it
2023-10-13239,541+4.4%2.06%7.99before stored barsno close to value it
2023-09-29229,497+1.7%1.97%6.50before stored barsno close to value it
2023-09-15225,751+16.9%1.89%4.34before stored barsno close to value it
2023-08-31193,187+6.8%1.62%1.50before stored barsno close to value it
2023-08-15180,848no prior settlement1.52%6.14before stored barsno close to value it

Change is against the settlement before it, and is left out where one is missing from the archive. Percent of shares outstanding divides by the filed share count dated nearest each settlement, within 200 days, so it moves when the share count does; it is not percent of float. Close and value short (shares short times that day’s close, both as traded) come from our stored daily bars, which begin 2024-07-01; earlier settlements show none rather than a figure from another source. Nothing here is split-adjusted, so a split appears as the step it was.

Different measurement // daily, and not a position

Daily short volume

This is not the number above. Short interest is the position still held short, reported twice a month. Short volume is the share of a single day’s trading that was marked as a sell-short order, published daily. Most of it is market makers hedging and closing within the same session, so a stock printing a high figure here is not that percentage sold short.

Latest session (2026-11-09)
55.6%
Average, last 10 sessions
60.9%
2026-11-0955.6%
2026-11-0667.4%
2026-11-0558.4%
2026-11-0479.6%
2026-11-0376.2%
2026-11-0267.8%
2026-10-3072.9%
2026-10-2964.8%
2026-10-2835.8%
2026-10-2730.5%

FINRA Reg SHO consolidated daily file. Sessions with no row for APT are omitted rather than shown as zero.

Price context // daily bars, not short data

Where the price sits

Session of 2026-11-09, from 276 sessions of daily bars. These are price figures, not short figures, and they update daily rather than twice a month.

Close$5.55
Volume, latest session39,412
Volume vs averageAgainst its own 50-session average of 47,557, same series on both sides0.83x
% from 52-week high ($7.50)-26.0%
% from 52-week low ($4.34)+27.9%
52-week performance+16.6%
% from 50-day average ($5.42)+2.4%
% from 200-day average ($5.21)+6.4%
RSI, 14-dayWilder’s construction, so it matches what charting platforms print51.5

Why there is no “% of float” here

Percent of float is the number the paid trackers lead with, and it is the one number in this category that cannot be published honestly for free. There is no free float share count: the SEC’s XBRL concept for float does not exist, and the closest one, public float, is measured in dollars and is filed once a year with the annual report. For Apple it currently reads as of March 2025, sixteen months ago.

So a free site showing percent of float is doing one of two things: quietly substituting shares outstanding, which for a heavily insider-held small company is a wildly different number, or republishing a commercial estimate it licensed. We publish the percentage that filed data supports, label it as percent of shares outstanding, and where insider Form 4 filings allow it we publish percent of float as an explicit floor: subtracting only filed direct insider holdings from shares outstanding gives a ceiling on float, so the division gives a number the true percentage can only exceed. What we will not do is print a bare “% of float” built on someone else’s estimate. Where a figure is measured, this site says what it was measured against. Read the methodology.

What days to cover means

Open short interest divided by average daily trading volume: roughly how many full sessions of normal volume it would take for every short position to be bought back. FINRA computes it per security at each settlement and we pass their figure through. This matters more than it sounds, because sites that compute their own pick their own volume window and rarely say which, so the same stock shows materially different values depending on where you look.

High short interest and high days to cover describe fuel, not ignition. They say a crowded position exists; they say nothing about whether it unwinds, and heavily shorted stocks frequently keep falling. Educational information, not investment advice.

FINRA is the owner and source of this short interest and short sale volume data. Free on every plan; not for redistribution.

APT short interest FAQ

How old is this APT short interest figure?

It is the 2026-10-30 settlement, which is 12 days ago. FINRA collects short interest twice a month and publishes on the seventh business day after each settlement date, so this was published around 2026-11-10 and the next cycle is expected around 2026-11-24. There is no fresher short interest available anywhere for free, including from tools that display it next to a live price.

Why does this show percent of shares outstanding rather than percent of float?

Because float share counts are not published by any free source. The SEC XBRL concept for float does not exist, and the nearest one is measured in dollars and comes only from the annual report. Every free site showing a float percentage is republishing a commercial estimate. We publish the percentage we can compute from filed data and label it for what it is, rather than passing shares outstanding off as float.

Where does days to cover come from?

Shares short divided by average daily volume, using FINRA’s own two published figures. We do not use FINRA’s own days-to-cover field, because it is floored at 1.00: across the current file, 7,869 securities, over a third of the market, are published at exactly 1.00 and nearly all of them are genuinely below it. One stock with a true ratio of 0.03 is published as 1.00. Sites that instead invent their own average-volume window produce a different problem, which is why the operands here are both FINRA’s.

Is high short interest a buy signal?

No. High short interest is frequently the market pricing real problems, and many heavily shorted stocks keep falling. This page measures positioning. It makes no recommendation.

Keep going: the full APT workspace · short squeeze screener · APT dilution profile · APT off-exchange (ATS) volume · what short interest means · methodology