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Office Properties Income Trust

OPI
Exchange
Nasdaq
Industry
Real Estate
SEC CIK
0001456772

In the last 90 days, Office Properties Income Trust insiders filed 0 open-market purchases and 2 sales; 35 institutions reported holding it in 13F filings for Q2 2026, worth $320.8M in total; Oaktree Capital is the only superinvestor holding it.

Four kinds of short-selling data, each measuring something different:

  • Short interest: shares sold short and not yet bought back, as of a settlement date. FINRA publishes it twice a month, about eight business days after the settlement date.
  • Daily short volume: shares sold short each day in off-exchange trades reported to FINRA. It counts trades, not open positions, and is published the next day.
  • Fails-to-deliver: shares not delivered by the settlement date. The SEC publishes them twice a month, about two weeks late.
  • ATS (dark pool) volume: weekly volume on alternative trading systems and other off-exchange venues. FINRA publishes it two to four weeks after the week.

More in the glossary.

Short interest

Shares sold short and not yet bought back, from FINRA, on every settlement date in the last two years.

Short interest
440.0K
Shares, settlement Oct 15, 2026
Change
+127.0K
+40.6% vs. Sep 30, 2026
Days to cover
6.59
Short interest ÷ average daily volume
Average daily volume
66.8K
Shares, as reported by FINRA
Short interest by settlement date
Oct 15, 2024: 4,404,545 sharesOct 31, 2024: 4,851,850 sharesNov 15, 2024: 5,233,626 sharesNov 29, 2024: 5,094,108 sharesDec 13, 2024: 4,858,931 sharesDec 31, 2024: 4,732,888 sharesJan 15, 2025: 5,164,613 sharesJan 31, 2025: 4,903,459 sharesFeb 14, 2025: 4,809,478 sharesFeb 28, 2025: 5,178,539 sharesMar 14, 2025: 5,483,738 sharesMar 31, 2025: 5,060,405 sharesApr 15, 2025: 4,161,223 sharesApr 30, 2025: 3,790,785 sharesMay 15, 2025: 3,861,000 sharesMay 30, 2025: 4,236,306 sharesJun 13, 2025: 4,136,656 sharesJun 30, 2025: 3,853,828 sharesJul 15, 2025: 3,659,450 sharesJul 31, 2025: 3,812,456 sharesAug 15, 2025: 3,822,589 sharesAug 29, 2025: 4,994,374 sharesSep 15, 2025: 11,583,920 sharesSep 30, 2025: 7,369,160 sharesJun 30, 2026: 7,872 sharesJul 15, 2026: 145,099 sharesJul 31, 2026: 90,521 sharesAug 14, 2026: 84,920 sharesAug 31, 2026: 89,665 sharesSep 15, 2026: 88,471 sharesSep 30, 2026: 312,985 sharesOct 15, 2026: 439,995 shares
Short interest in OPI by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 15, 2026440.0K+127.0K+40.6%66.8K6.59
Sep 30, 2026313.0K+224.5K+253.8%126.2K2.48
Sep 15, 202688.5K−1.19K−1.3%52.4K1.69
Aug 31, 202689.7K+4.75K+5.6%95.1K1.00
Aug 14, 202684.9K−5.60K−6.2%148.4K1.00
Jul 31, 202690.5K−54.6K−37.6%877.4K1.00
Jul 15, 2026145.1K+137.2K+1,743.2%786.8K1.00
Jun 30, 20267.87K+7.87K+100.0%27.6K1.00
Sep 30, 20257.37M−4.21M−36.4%17.4M1.00
Sep 15, 202511.6M+6.59M+131.9%49.8M1.00
Aug 29, 20254.99M+1.17M+30.7%728.7K6.85
Aug 15, 20253.82M+10.1K+0.3%435.5K8.78
Jul 31, 20253.81M+153.0K+4.2%1.21M3.15
Jul 15, 20253.66M−194.4K−5.0%801.0K4.57
Jun 30, 20253.85M−282.8K−6.8%1.27M3.04
Jun 13, 20254.14M−99.7K−2.4%1.27M3.26
May 30, 20254.24M+375.3K+9.7%1.71M2.48
May 15, 20253.86M+70.2K+1.9%771.9K5.00
Apr 30, 20253.79M−370.4K−8.9%638.2K5.94
Apr 15, 20254.16M−899.2K−17.8%703.5K5.92
Mar 31, 20255.06M−423.3K−7.7%1.36M3.71
Mar 14, 20255.48M+305.2K+5.9%718.4K7.63
Feb 28, 20255.18M+369.1K+7.7%503.5K10.28
Feb 14, 20254.81M−94.0K−1.9%350.2K13.73
Jan 31, 20254.90M−261.2K−5.1%515.1K9.52
Jan 15, 20255.16M+431.7K+9.1%554.8K9.31
Dec 31, 20244.73M−126.0K−2.6%1.14M4.14
Dec 13, 20244.86M−235.2K−4.6%543.0K8.95
Nov 29, 20245.09M−139.5K−2.7%2.41M2.11
Nov 15, 20245.23M+381.8K+7.9%1.37M3.82
Oct 31, 20244.85M+447.3K+10.2%1.01M4.79
Oct 15, 20244.40M+242.5K+5.8%546.3K8.06

Fails-to-deliver

Shares that weren't delivered by the settlement date, from the SEC, for the last 30 dates with fails. The price is the previous day's closing price published by the SEC.

Fails-to-deliver in OPI by settlement date
Settlement dateSharesPriceValue
Oct 7, 2026233$15.87$3.70K
Oct 2, 20265,772$15.36$88.7K
Sep 21, 20262,774$17.62$48.9K
Sep 17, 202641,165$16.21$667.3K
Sep 16, 2026205$17.11$3.51K
Sep 15, 202688$16.54$1.46K
Sep 14, 20261,391$16.84$23.4K
Sep 8, 2026371$17.73$6.58K
Sep 4, 202611,410$17.71$202.1K
Sep 3, 202611,553$17.66$204.0K
Sep 1, 2026106$17.67$1.87K
Aug 28, 2026389$17.44$6.78K
Aug 25, 2026530$18.57$9.84K
Aug 7, 20262$18.62$37.24
Aug 3, 20263,143$18.79$59.1K
Jul 30, 20262,572$17.45$44.9K
Jul 22, 202696$18.22$1.75K
Jul 17, 2026547$18.81$10.3K
Jul 14, 20261,811$17.08$30.9K
Jul 13, 20261,462$17.50$25.6K
Jul 10, 20263,741$16.50$61.7K
Jul 8, 202626,792$16.75$448.8K
Jul 7, 202627,943$16.44$459.4K
Jun 30, 202669$16.78$1.16K
Jun 26, 202642$17.80$747.6
Jun 25, 20265,237$18.92$99.1K
Jun 24, 20264,389$16.31$71.6K
Jun 23, 20262,650$17.00$45.0K
May 28, 20262––
May 14, 2026502––

Daily short volume

Off-exchange short-sale volume, not short interest: shares sold short each day in trades reported to FINRA, for the last 30 trading days.

The short volume ratio isn't a sentiment gauge: market makers sell short to fill buy orders and to hedge, so short sales are usually about half of off-exchange volume.

Off-exchange short volume in OPI by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 9, 202611,372024,15747.1%
Nov 6, 202622,487036,86161.0%
Nov 5, 202612,695018,35969.1%
Nov 4, 202614,890019,56776.1%
Nov 3, 202616,437027,40360.0%
Nov 2, 202613,969024,72156.5%
Oct 30, 202616,126024,56665.6%
Oct 29, 202620,548029,49469.7%
Oct 28, 202620,7459955,49137.4%
Oct 27, 202636,145066,51054.3%
Oct 26, 202652,700066,71779.0%
Oct 23, 202616,542027,40460.4%
Oct 22, 202616,579031,22453.1%
Oct 21, 202619,143020,63092.8%
Oct 20, 202622,228029,54275.2%
Oct 19, 202615,560018,35684.8%
Oct 16, 202612,001016,12374.4%
Oct 15, 202632,804040,83180.3%
Oct 14, 202610,551015,88166.4%
Oct 13, 202613,167017,03577.3%
Oct 12, 20265,86007,76275.5%
Oct 9, 20265,10907,28170.2%
Oct 8, 20266,68008,82875.7%
Oct 7, 202627,654029,19294.7%
Oct 6, 202612,614019,75663.8%
Oct 5, 202619,143023,22182.4%
Oct 2, 202624,314034,47570.5%
Oct 1, 202622,022036,75359.9%
Sep 30, 202627,323039,89568.5%
Sep 29, 202624,333030,27080.4%

ATS (dark pool) volume

Weekly volume on alternative trading systems (ATS) and other off-exchange (OTC) venues, from FINRA, for the last 12 weeks. ATS share is ATS volume ÷ (ATS + OTC volume), not a share of all trading.

Weekly ATS and OTC volume in OPI
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T271,6921,95517,50585680.4%
Sep 28, 2026T2178,7334,61930,95978185.2%
Sep 21, 2026T288,3492,93435,96935071.1%
Sep 14, 2026T296,5502,848135,12557941.7%
Sep 7, 2026T253,2813,25910,44435683.6%
Aug 31, 2026T252,3451,65816,64246975.9%
Aug 24, 2026T274,9762,020104,5031,14541.8%
Aug 17, 2026T2297,9872,889106,22361273.7%
Aug 10, 2026T266,4301,64566,73090549.9%
Aug 3, 2026T2263,9392,888449,0762,24737.0%
Jul 27, 2026T240,64188184,14499532.6%
Jul 20, 2026T229,4771,02347,0971,10338.5%