About this data
What it is
Short interest is the number of shares investors have sold short and not yet bought back. FINRA, which oversees US brokers, publishes it for every US-listed stock twice a month.
Who files it
Brokers report their customers' short positions to FINRA, which publishes the totals.
How current
Positions are counted twice a month, and FINRA publishes them about a week later, so the latest report never includes today's short selling.
Worth knowing
A high number can reflect bets that the price will fall, or hedges against other positions. Days to cover is shares short divided by average daily volume: roughly how many days of normal trading it would take to buy them all back.
Not to be confused with
Fails to deliver: shares that were sold but not delivered by the settlement date, from the SEC. The tables on this page have a Fails outstanding column with the balance on each report date.

All of this comes from public filings.

Source: FINRA

Total shares reported short, last 8 reports

02.0M4.0M6.0M8.0MApr 30 · XTIA shares short: 5,284,129 sharesApr 30May 15 · XTIA shares short: 4,580,940 sharesMay 15May 29 · XTIA shares short: 6,343,526 sharesMay 29Jun 15 · XTIA shares short: 6,908,943 sharesJun 15Jun 30 · XTIA shares short: 6,147,694 sharesJun 30Jul 15 · XTIA shares short: 5,595,705 sharesJul 15Jul 31 · XTIA shares short: 4,781,657 sharesJul 31Aug 14 · XTIA shares short: 4,675,173 sharesAug 14Aug 31 · XTIA shares short: 4,058,227 sharesAug 31Sep 15 · XTIA shares short: 3,733,017 sharesSep 15Sep 30 · XTIA shares short: 4,271,252 sharesSep 30Oct 15 · XTIA shares short: 3,649,486 sharesOct 15
02.0M4.0M6.0M8.0MApr 30 · XTIA shares short: 5,284,129 sharesApr 30May 15 · XTIA shares short: 4,580,940 sharesMay 15May 29 · XTIA shares short: 6,343,526 sharesMay 29Jun 15 · XTIA shares short: 6,908,943 sharesJun 15Jun 30 · XTIA shares short: 6,147,694 sharesJun 30Jul 15 · XTIA shares short: 5,595,705 sharesJul 15Jul 31 · XTIA shares short: 4,781,657 sharesJul 31Aug 14 · XTIA shares short: 4,675,173 sharesAug 14Aug 31 · XTIA shares short: 4,058,227 sharesAug 31Sep 15 · XTIA shares short: 3,733,017 sharesSep 15Sep 30 · XTIA shares short: 4,271,252 sharesSep 30Oct 15 · XTIA shares short: 3,649,486 sharesOct 15

Most shorted in the latest report

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Showing: ticker XTIA

Most shorted in the latest report
Shares that brokers had failed to deliver and not yet delivered at the end of this settlement date, from the SEC. The figure is a running balance: all the shares that were still undelivered at the end of that settlement date, including fails carried over from earlier days. It is not the number of new fails that day, and the file does not say how old they are. The same fail is counted again on every day it stays open. The SEC says these numbers are not evidence of abusive or "naked" short selling, and are not necessarily the result of short selling. Fails have many causes, and most are cleared within days. A large balance in one stock is a reason to look closer, not a conclusion.Source
Oct 15, 20263.65M4.27M-14.6%910,9374.0—FINRA ↗
Sep 30, 20264.27M3.73M+14.4%707,3846.0none listedFINRA ↗
Sep 15, 20263.73M4.06M-8.0%1.38M2.7none listedFINRA ↗
Aug 31, 20264.06M4.68M-13.2%727,9775.6none listedFINRA ↗
Aug 14, 20264.68M4.78M-2.2%574,4438.1none listedFINRA ↗
Jul 31, 20264.78M5.60M-14.6%560,4328.5none listedFINRA ↗
Jul 15, 20265.60M6.15M-9.0%808,3076.95,715FINRA ↗
Jun 30, 20266.15M6.91M-11.0%940,9396.524,928FINRA ↗
Jun 15, 20266.91M6.34M+8.9%2.16M3.26,224FINRA ↗
May 29, 20266.34M4.58M+38.5%2.85M2.26,069FINRA ↗
May 15, 20264.58M5.28M-13.3%1.43M3.25,411FINRA ↗
Apr 30, 20265.28M5.65M-6.4%1.41M3.75,330FINRA ↗
Apr 15, 20265.65M4.89M+15.4%1.48M3.813,668FINRA ↗
Mar 31, 20264.89M6.46M-24.3%2.02M2.416,848FINRA ↗
Mar 13, 20266.46M7.48M-13.6%4.34M1.515,591FINRA ↗
Feb 27, 20267.48M7.88M-5.0%1.33M5.6347,415FINRA ↗
Feb 13, 20267.88M7.80M+1.0%1.68M4.744,023FINRA ↗
Jan 30, 20267.80M7.15M+9.1%2.61M3.098,787FINRA ↗
Jan 15, 20267.15M3.87M+84.6%3.34M2.118,276FINRA ↗
Dec 31, 20253.87M3.27M+18.6%1.14M3.419,435FINRA ↗
Dec 15, 20253.27M2.23M+46.3%1.22M2.7487FINRA ↗
Nov 28, 20252.23M1.93M+15.7%1.51M1.525,620FINRA ↗
Nov 14, 20251.93M1.47M+31.3%1.58M1.29,767FINRA ↗
Oct 31, 20251.47M1.19M+23.2%1.10M1.37,076FINRA ↗

24 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 4:51 PM EST.

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