Short interest // FINRA, biweekly, dated

DRTSW short interest

Free to use. No account, no card.

Alpha Tau Medical Ltd. Warrant

6,074shares sold short

No percentage is shown because the two numbers are different instruments. FINRA counts short positions in the ADS that trades here, while DRTSW’s filings (20-F) report ordinary shares — one ADS represents many of them, and the current ratio is not in XBRL. Dividing one by the other yields a number that looks like zero no matter how crowded the short side actually is.

As of the 2026-10-15 settlement, which is 26 days ago. FINRA publishes twice a month on the seventh business day after settlement, so this cycle was published around 2026-10-26 and the next is expected around 2026-11-10. No free source anywhere has anything fresher, including sites that display this number next to a live price.

Shares sold short6,074
⊙
EVIDENCE — filed/published fact
SourceFINRA consolidated short interest
FieldcurrentShortPositionQuantity
As of2026-10-15 settlement
HowFile shrt20261015.csv in FINRA's catalog (posted ~7 business days after settlement).
Open the source document →
Prior settlement8,857
Change-31.4%
Days to coverShares short divided by average daily volume. FINRA publishes 1.00 here because it does not report below 1.00.0.28
⊙
INFERENCE — derived by arithmetic
SourceFINRA consolidated short interest
FieldcurrentShortPositionQuantity ÷ averageDailyVolumeQuantity
As of2026-10-15 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 →
FINRA prints 1.00 (floored)
Average daily volume (FINRA, the days-to-cover denominator)21,988
ExchangeNasdaq (SmallCap)
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.not computable — filed count is ordinary shares, FINRA counts ADS

We do not hold a filing-derived share count for DRTSW, so the percentage is not computed. A percentage of an unknown denominator is not a smaller version of the right answer, so nothing is shown in its place.

Short interest history

77 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
2026-10-156,074-31.4%no share count within 200 days0.282.9918,161
2026-09-308,857+121.2%no share count within 200 days0.194.0936,269
2026-09-154,004-24.6%no share count within 200 days0.084.0416,176
2026-08-315,312+72.3%no share count within 200 days0.083.6019,123
2026-08-143,083-70.3%no share count within 200 days0.073.7411,530
2026-07-3110,365+9.8%no share count within 200 days0.212.6927,882
2026-07-159,443+96.6%no share count within 200 days0.173.5533,523
2026-06-304,802+73.1%no share count within 200 days0.032.9514,166
2026-06-152,774-82.5%no share count within 200 days0.071.955,409
2026-05-2915,871+16.7%no share count within 200 days0.172.8044,439
2026-05-1513,600+285.2%no share count within 200 days0.172.1529,240
2026-04-303,531+4.8%no share count within 200 days0.081.224,308
Show the other 65 settlements, back to 2023-08-15
SettlementShares shortChange% of shares outDays to coverClose, USDValue short, USD
2026-04-153,370-22.2%no share count within 200 days0.060.943,168
2026-03-314,334+23.4%no share count within 200 days0.381.004,334
2026-03-133,511-19.0%no share count within 200 days0.160.953,335
2026-02-274,337-24.5%no share count within 200 days0.201.215,248
2026-02-135,748+106.3%no share count within 200 days0.181.146,553
2026-01-302,786-7.9%no share count within 200 days0.040.912,524
2026-01-153,024-64.3%no share count within 200 days0.031.093,296
2025-12-318,463-22.9%no share count within 200 days1.180.342,877
2025-12-1510,980-30.6%no share count within 200 days1.140.353,843
2025-11-2815,827+20.5%no share count within 200 days2.77no stored barno close to value it
2025-11-1413,135-14.4%no share count within 200 days1.98no stored barno close to value it
2025-10-3115,338-2.6%no share count within 200 days5.06no stored barno close to value it
2025-10-1515,755+75.4%no share count within 200 days2.050.284,452
2025-09-308,981-7.2%no share count within 200 days3.720.343,098
2025-09-159,678-40.8%no share count within 200 days1.120.292,833
2025-08-2916,336-21.3%no share count within 200 days1.830.284,574
2025-08-1520,769-54.9%no share count within 200 days2.15no stored barno close to value it
2025-07-3146,050-6.8%no share count within 200 days45.870.2310,592
2025-07-1549,401-3.1%no share count within 200 days14.220.2813,832
2025-06-3051,003-3.2%no share count within 200 days26.59no stored barno close to value it
2025-06-1352,691-3.6%no share count within 200 days19.29no stored barno close to value it
2025-05-3054,657+121.2%no share count within 200 days6.000.2111,478
2025-05-1524,712-7.4%no share count within 200 days2.830.235,634
2025-04-3026,693+555.0%no share count within 200 days7.600.184,805
2025-04-154,075+33.3%no share count within 200 days0.46no stored barno close to value it
2025-03-313,057-0.6%no share count within 200 days1.390.24726
2025-03-143,076-6.3%no share count within 200 days0.92no stored barno close to value it
2025-02-283,282-24.0%no share count within 200 days0.050.30979
2025-02-144,319+14.9%no share count within 200 days0.380.351,512
2025-01-313,759-14.8%no share count within 200 days0.16no stored barno close to value it
2025-01-154,411+59.0%no share count within 200 days0.060.341,500
2024-12-312,774+0.0%no share count within 200 days0.230.21583
2024-12-132,774-5.5%no share count within 200 days0.250.25687
2024-11-292,937+5.9%no share count within 200 days0.11no stored barno close to value it
2024-11-152,774+32.4%no share count within 200 days0.560.16452
2024-10-312,095+18.2%no share count within 200 days0.34no stored barno close to value it
2024-10-151,773-4.0%no share count within 200 days1.330.16284
2024-09-301,846+0.0%no share count within 200 days0.60no stored barno close to value it
2024-09-131,846-51.8%no share count within 200 days0.80no stored barno close to value it
2024-08-303,826-0.2%no share count within 200 days0.55no stored barno close to value it
2024-08-153,832-14.5%no share count within 200 days0.11no stored barno close to value it
2024-07-314,482-23.0%no share count within 200 days0.340.16697
2024-07-155,821+0.9%no share count within 200 days3.430.251,455
2024-06-285,768+20.8%no share count within 200 days1.03before stored barsno close to value it
2024-06-144,774-41.5%no share count within 200 days0.57before stored barsno close to value it
2024-05-318,158-60.6%no share count within 200 days0.49before stored barsno close to value it
2024-05-1520,704+1272.0%no share count within 200 days3.27before stored barsno close to value it
2024-04-301,509-3.4%no share count within 200 days0.22before stored barsno close to value it
2024-04-151,562-37.7%no share count within 200 days0.17before stored barsno close to value it
2024-03-282,507-17.5%no share count within 200 days0.51before stored barsno close to value it
2024-03-153,037-45.5%no share count within 200 days0.32before stored barsno close to value it
2024-02-295,572+19.6%no share count within 200 days2.89before stored barsno close to value it
2024-02-154,659+109.6%no share count within 200 days1.71before stored barsno close to value it
2024-01-312,223-15.2%no share count within 200 days0.27before stored barsno close to value it
2024-01-122,620-50.0%no share count within 200 days0.48before stored barsno close to value it
2023-12-295,240+178.6%no share count within 200 days0.25before stored barsno close to value it
2023-12-151,881-31.8%no share count within 200 days0.05before stored barsno close to value it
2023-11-302,760-63.2%no share count within 200 days6.27before stored barsno close to value it
2023-11-157,492-24.8%no share count within 200 days0.87before stored barsno close to value it
2023-10-319,964+56.4%no share count within 200 days0.63before stored barsno close to value it
2023-10-136,370+9.0%no share count within 200 days0.34before stored barsno close to value it
2023-09-295,845-43.6%no share count within 200 days0.65before stored barsno close to value it
2023-09-1510,372-7.9%no share count within 200 days4.30before stored barsno close to value it
2023-08-3111,261-37.1%no share count within 200 days1.53before stored barsno close to value it
2023-08-1517,916no prior settlementno share count within 200 days1.66before 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)
71.5%
Average, last 10 sessions
50.9%
2026-11-0971.5%
2026-11-0640.0%
2026-11-0587.0%
2026-11-0444.2%
2026-11-0335.3%
2026-11-0299.8%
2026-10-3088.5%
2026-10-294.5%
2026-10-284.7%
2026-10-2733.5%

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

Price context // daily bars, not short data

Where the price sits

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

Close$3.17
Volume, latest session70,144

Some longer-window figures are absent because DRTSW has only 11 sessions of history. A 200-day average computed over fewer than 200 sessions is a different number with the same name, so it is left out rather than approximated.

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.

DRTSW short interest FAQ

How old is this DRTSW short interest figure?

It is the 2026-10-15 settlement, which is 26 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 2026-10-26 and the next cycle is expected around 2026-11-10. 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 DRTSW workspace · short squeeze screener · DRTSW dilution profile · DRTSW off-exchange (ATS) volume · what short interest means · methodology