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ProShares Trust II

ZSL
Exchange
NYSE
Industry
Commodity Contracts Brokers & Dealers
SEC CIK
0001415311

No open-market purchases or sales by ProShares Trust II insiders were filed in the last 90 days; 14 institutions reported holding it in 13F filings for Q2 2026, worth $28.5M in total; no superinvestor holds it.

Other share classesAGQEUOGLLSCOUCOUGLULEYCLYCSBOILKOLDSVXYUVXYVIXMVIXY

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
971.0K
Shares, settlement Oct 15, 2026
Change
+88.4K
+10.0% vs. Sep 30, 2026
Days to cover
1.00
Short interest ÷ average daily volume
Average daily volume
3.14M
Shares, as reported by FINRA
Short interest by settlement date
Oct 15, 2024: 347,252 sharesOct 31, 2024: 220,170 sharesNov 15, 2024: 19,329 sharesNov 29, 2024: 24,592 sharesDec 13, 2024: 15,395 sharesDec 31, 2024: 49,441 sharesJan 15, 2025: 54,733 sharesJan 31, 2025: 121,213 sharesFeb 14, 2025: 87,795 sharesFeb 28, 2025: 71,347 sharesMar 14, 2025: 136,922 sharesMar 31, 2025: 35,156 sharesApr 15, 2025: 150,903 sharesApr 30, 2025: 94,760 sharesMay 15, 2025: 9,741 sharesMay 30, 2025: 24,173 sharesJun 13, 2025: 34,416 sharesJun 30, 2025: 38,538 sharesJul 15, 2025: 67,022 sharesJul 31, 2025: 100,222 sharesAug 15, 2025: 93,574 sharesAug 29, 2025: 168,477 sharesSep 15, 2025: 192,117 sharesSep 30, 2025: 152,275 sharesOct 15, 2025: 125,454 sharesOct 31, 2025: 142,923 sharesNov 14, 2025: 1,035,692 sharesNov 28, 2025: 1,114,094 sharesDec 15, 2025: 713,154 sharesDec 31, 2025: 815,866 sharesJan 15, 2026: 8,938,312 sharesJan 30, 2026: 13,436,680 sharesFeb 13, 2026: 19,486,566 sharesFeb 27, 2026: 2,681,515 sharesMar 13, 2026: 2,420,051 sharesMar 31, 2026: 2,561,847 sharesApr 15, 2026: 1,881,261 sharesApr 30, 2026: 1,087,174 sharesMay 15, 2026: 1,286,590 sharesMay 29, 2026: 1,155,946 sharesJun 15, 2026: 1,004,267 sharesJun 30, 2026: 990,259 sharesJul 15, 2026: 969,106 sharesJul 31, 2026: 1,038,906 sharesAug 14, 2026: 982,316 sharesAug 31, 2026: 965,264 sharesSep 15, 2026: 1,013,083 sharesSep 30, 2026: 882,605 sharesOct 15, 2026: 971,016 shares
Short interest in ZSL by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 15, 2026971.0K+88.4K+10.0%3.14M1.00
Sep 30, 2026882.6K−130.5K−12.9%4.74M1.00
Sep 15, 20261.01M+47.8K+5.0%4.97M1.00
Aug 31, 2026965.3K−17.1K−1.7%3.26M1.00
Aug 14, 2026982.3K−56.6K−5.5%2.04M1.00
Jul 31, 20261.04M+69.8K+7.2%1.96M1.00
Jul 15, 2026969.1K−21.2K−2.1%2.32M1.00
Jun 30, 2026990.3K−14.0K−1.4%2.76M1.00
Jun 15, 20261.00M−151.7K−13.1%4.06M1.00
May 29, 20261.16M−130.6K−10.2%5.82M1.00
May 15, 20261.29M+199.4K+18.3%10.5M1.00
Apr 30, 20261.09M−794.1K−42.2%5.85M1.00
Apr 15, 20261.88M−680.6K−26.6%6.64M1.00
Mar 31, 20262.56M+141.8K+5.9%11.7M1.00
Mar 13, 20262.42M−261.5K−9.8%14.2M1.00
Feb 27, 2026Split2.68M−16.8M−86.2%15.4M1.00
Feb 13, 202619.5M+6.05M+45.0%270.4M1.00
Jan 30, 202613.4M+4.50M+50.3%489.5M1.00
Jan 15, 20268.94M+8.12M+995.6%164.5M1.00
Dec 31, 2025815.9K+102.7K+14.4%43.1M1.00
Dec 15, 2025713.2K−400.9K−36.0%7.36M1.00
Nov 28, 20251.11M+78.4K+7.6%3.80M1.00
Nov 14, 20251.04M+892.8K+624.7%2.46M1.00
Oct 31, 2025142.9K+17.5K+13.9%2.73M1.00
Oct 15, 2025125.5K−26.8K−17.6%2.44M1.00
Sep 30, 2025152.3K−39.8K−20.7%888.5K1.00
Sep 15, 2025192.1K+23.6K+14.0%440.0K1.00
Aug 29, 2025168.5K+74.9K+80.1%329.6K1.00
Aug 15, 202593.6K−6.65K−6.6%252.3K1.00
Jul 31, 2025100.2K+33.2K+49.5%419.1K1.00
Jul 15, 202567.0K+28.5K+73.9%401.8K1.00
Jun 30, 202538.5K+4.12K+12.0%342.0K1.00
Jun 13, 202534.4K+10.2K+42.4%592.9K1.00
May 30, 202524.2K+14.4K+148.2%269.9K1.00
May 15, 20259.74K−85.0K−89.7%331.6K1.00
Apr 30, 202594.8K−56.1K−37.2%450.4K1.00
Apr 15, 2025150.9K+115.7K+329.2%567.4K1.00
Mar 31, 202535.2K−101.8K−74.3%389.6K1.00
Mar 14, 2025136.9K+65.6K+91.9%337.9K1.00
Feb 28, 202571.3K−16.4K−18.7%302.0K1.00
Feb 14, 202587.8K−33.4K−27.6%659.3K1.00
Jan 31, 2025121.2K+66.5K+121.5%631.6K1.00
Jan 15, 202554.7K+5.29K+10.7%262.7K1.00
Dec 31, 202449.4K+34.0K+221.2%170.2K1.00
Dec 13, 202415.4K−9.20K−37.4%269.9K1.00
Nov 29, 202424.6K+5.26K+27.2%146.9K1.00
Nov 15, 2024Split19.3K−200.8K−91.2%358.3K1.00
Oct 31, 2024220.2K−127.1K−36.6%1.86M1.00
Oct 15, 2024347.3K+242.5K+231.4%2.23M1.00

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 ZSL by settlement date
Settlement dateSharesPriceValue
Oct 14, 20264,561$28.67$130.8K
Oct 13, 202610,960$27.74$304.0K
Oct 9, 20265,115$28.75$147.1K
Oct 8, 20263,992$28.33$113.1K
Oct 7, 202618,661$26.69$498.1K
Oct 6, 202628,326$27.04$765.9K
Oct 5, 20263,944$27.46$108.3K
Oct 2, 2026674$27.10$18.3K
Sep 30, 20262,519$26.68$67.2K
Sep 29, 202635,496$27.19$965.1K
Sep 28, 2026776$24.45$19.0K
Sep 24, 2026634$24.42$15.5K
Sep 23, 20265,719$22.37$127.9K
Sep 22, 2026337$23.22$7.83K
Sep 21, 202650,705$23.02$1.17M
Sep 18, 202644,585$23.79$1.06M
Sep 16, 20263,223$25.04$80.7K
Sep 15, 202612,809$25.60$327.9K
Sep 14, 202665,964$24.52$1.62M
Sep 11, 20267,337$25.05$183.8K
Sep 10, 202628,925$22.61$654.0K
Sep 9, 20261,441$23.68$34.1K
Sep 8, 20262,923$23.35$68.3K
Sep 4, 202619,260$22.80$439.1K
Sep 3, 20264,050$24.08$97.5K
Sep 2, 202662,546$25.00$1.56M
Aug 31, 202627,679$23.24$643.3K
Aug 28, 202623,260$21.33$496.1K
Aug 26, 202624,484$21.68$530.8K
Aug 25, 2026111,106$21.74$2.42M

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 ZSL by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 9, 2026117,0741,201337,89034.6%
Nov 6, 2026191,4591,005476,80440.2%
Nov 5, 2026269,10747,515643,19841.8%
Nov 4, 2026353,38348,343694,33050.9%
Nov 3, 2026383,1922,500577,98666.3%
Nov 2, 2026293,2031550,85453.2%
Oct 30, 2026181,6087,352666,17127.3%
Oct 29, 2026162,1273,105447,67536.2%
Oct 28, 2026328,89850612,71253.7%
Oct 27, 2026227,8510491,62446.3%
Oct 26, 2026150,5791,900396,34138.0%
Oct 23, 2026194,7690514,09337.9%
Oct 22, 2026459,451206936,43849.1%
Oct 21, 2026212,2330449,98647.2%
Oct 20, 2026671,7524861,116,78360.2%
Oct 19, 2026302,2123,100587,69151.4%
Oct 16, 2026240,5720580,74041.4%
Oct 15, 2026216,0880629,56834.3%
Oct 14, 2026398,002441951,80841.8%
Oct 13, 2026233,9134,003572,93840.8%
Oct 12, 2026159,275500303,37352.5%
Oct 9, 2026225,2556,899526,10342.8%
Oct 8, 2026326,170200570,72757.1%
Oct 7, 2026431,9011,863913,92747.3%
Oct 6, 2026161,5240423,59438.1%
Oct 5, 2026224,56910,000508,99544.1%
Oct 2, 2026467,82313,200898,80252.0%
Oct 1, 2026266,6180658,55440.5%
Sep 30, 2026288,9910692,14541.8%
Sep 29, 2026345,974118631,79454.8%

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 ZSL
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2910,5412,2942,871,9479,38424.1%
Sep 28, 2026T21,457,5485,6673,207,97212,49331.2%
Sep 21, 2026T21,274,1393,8292,777,56510,62431.4%
Sep 14, 2026T22,022,0125,7595,201,69713,47628.0%
Sep 7, 2026T21,695,6034,5373,559,65111,37232.3%
Aug 31, 2026T21,314,9794,4054,712,26212,76421.8%
Aug 24, 2026T21,414,3857,4285,457,18314,60120.6%
Aug 17, 2026T2804,9165,2374,791,18914,05414.4%
Aug 10, 2026T21,221,8785,9313,284,37911,44227.1%
Aug 3, 2026T2826,4615,3263,264,25411,93620.2%
Jul 27, 2026T21,006,9655,6702,818,7709,71726.3%
Jul 20, 2026T2528,6573,2493,585,48912,28412.8%