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Terawulf Inc.

WULF
Exchange
Nasdaq
Industry
Finance Services
SEC CIK
0001083301

In the last 90 days, Terawulf Inc. insiders filed 2 open-market purchases and 3 sales; 504 institutions reported holding it in 13F filings for Q2 2026, worth $9.82B in total; Lone Pine 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
122.1M
Shares, settlement Oct 30, 2026
Change
−6.08M
−4.7% vs. Oct 15, 2026
Days to cover
2.71
Short interest ÷ average daily volume
Average daily volume
45.1M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 59,474,943 sharesNov 15, 2024: 54,723,655 sharesNov 29, 2024: 56,525,467 sharesDec 13, 2024: 56,242,214 sharesDec 31, 2024: 59,733,428 sharesJan 15, 2025: 66,762,973 sharesJan 31, 2025: 71,765,200 sharesFeb 14, 2025: 76,150,650 sharesFeb 28, 2025: 81,852,673 sharesMar 14, 2025: 89,704,077 sharesMar 31, 2025: 86,368,881 sharesApr 15, 2025: 86,847,669 sharesApr 30, 2025: 94,371,203 sharesMay 15, 2025: 91,338,858 sharesMay 30, 2025: 95,122,715 sharesJun 13, 2025: 88,344,160 sharesJun 30, 2025: 86,632,459 sharesJul 15, 2025: 88,588,027 sharesJul 31, 2025: 88,111,162 sharesAug 15, 2025: 88,829,351 sharesAug 29, 2025: 104,142,803 sharesSep 15, 2025: 104,245,654 sharesSep 30, 2025: 102,301,755 sharesOct 15, 2025: 106,747,522 sharesOct 31, 2025: 109,430,787 sharesNov 14, 2025: 105,434,759 sharesNov 28, 2025: 102,128,674 sharesDec 15, 2025: 99,422,010 sharesDec 31, 2025: 93,851,156 sharesJan 15, 2026: 98,085,614 sharesJan 30, 2026: 93,277,556 sharesFeb 13, 2026: 95,574,184 sharesFeb 27, 2026: 93,590,674 sharesMar 13, 2026: 96,576,471 sharesMar 31, 2026: 98,355,926 sharesApr 15, 2026: 102,092,218 sharesApr 30, 2026: 105,298,684 sharesMay 15, 2026: 110,268,414 sharesMay 29, 2026: 108,775,050 sharesJun 15, 2026: 108,654,174 sharesJun 30, 2026: 104,663,534 sharesJul 15, 2026: 104,365,154 sharesJul 31, 2026: 111,164,073 sharesAug 14, 2026: 107,155,929 sharesAug 31, 2026: 122,289,767 sharesSep 15, 2026: 121,146,308 sharesSep 30, 2026: 119,364,725 sharesOct 15, 2026: 128,133,970 sharesOct 30, 2026: 122,054,730 shares
Short interest in WULF by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 2026122.1M−6.08M−4.7%45.1M2.71
Oct 15, 2026128.1M+8.77M+7.4%38.1M3.36
Sep 30, 2026119.4M−1.78M−1.5%26.5M4.50
Sep 15, 2026121.1M−1.14M−0.9%28.1M4.31
Aug 31, 2026122.3M+15.1M+14.1%30.6M4.00
Aug 14, 2026107.2M−4.01M−3.6%31.2M3.44
Jul 31, 2026111.2M+6.80M+6.5%33.3M3.34
Jul 15, 2026104.4M−298.4K−0.3%42.1M2.48
Jun 30, 2026104.7M−3.99M−3.7%29.3M3.58
Jun 15, 2026108.7M−120.9K−0.1%26.3M4.12
May 29, 2026108.8M−1.49M−1.4%27.1M4.02
May 15, 2026110.3M+4.97M+4.7%28.9M3.81
Apr 30, 2026105.3M+3.21M+3.1%32.3M3.26
Apr 15, 2026102.1M+3.74M+3.8%34.4M2.97
Mar 31, 202698.4M+1.78M+1.8%30.0M3.28
Mar 13, 202696.6M+2.99M+3.2%27.8M3.48
Feb 27, 202693.6M−1.98M−2.1%26.9M3.48
Feb 13, 202695.6M+2.30M+2.5%47.1M2.03
Jan 30, 202693.3M−4.81M−4.9%26.9M3.46
Jan 15, 202698.1M+4.23M+4.5%21.9M4.48
Dec 31, 202593.9M−5.57M−5.6%23.6M3.98
Dec 15, 202599.4M−2.71M−2.7%30.1M3.30
Nov 28, 2025102.1M−3.31M−3.1%46.3M2.20
Nov 14, 2025105.4M−4.00M−3.7%46.2M2.28
Oct 31, 2025109.4M+2.68M+2.5%44.4M2.46
Oct 15, 2025106.7M+4.45M+4.4%41.6M2.57
Sep 30, 2025102.3M−1.94M−1.9%37.2M2.75
Sep 15, 2025104.2M+102.9K+0.1%40.3M2.59
Aug 29, 2025104.1M+15.3M+17.2%63.9M1.63
Aug 15, 202588.8M+718.2K+0.8%63.8M1.39
Jul 31, 202588.1M−476.9K−0.5%42.3M2.08
Jul 15, 202588.6M+1.96M+2.3%61.4M1.44
Jun 30, 202586.6M−1.71M−1.9%49.2M1.76
Jun 13, 202588.3M−6.78M−7.1%46.6M1.89
May 30, 202595.1M+3.78M+4.1%45.7M2.08
May 15, 202591.3M−3.03M−3.2%35.1M2.60
Apr 30, 202594.4M+7.52M+8.7%35.5M2.66
Apr 15, 202586.8M+478.8K+0.6%34.8M2.49
Mar 31, 202586.4M−3.34M−3.7%32.8M2.63
Mar 14, 202589.7M+7.85M+9.6%35.4M2.54
Feb 28, 202581.9M+5.70M+7.5%57.0M1.44
Feb 14, 202576.2M+4.39M+6.1%36.0M2.12
Jan 31, 202571.8M+5.00M+7.5%58.5M1.23
Jan 15, 202566.8M+7.03M+11.8%34.2M1.95
Dec 31, 202459.7M+3.49M+6.2%26.4M2.26
Dec 13, 202456.2M−283.3K−0.5%23.1M2.43
Nov 29, 202456.5M+1.80M+3.3%23.6M2.39
Nov 15, 202454.7M−4.75M−8.0%29.3M1.87
Oct 31, 202459.5M+11.8M+24.7%34.4M1.73

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 WULF by settlement date
Settlement dateSharesPriceValue
Oct 14, 2026775$13.21$10.2K
Oct 13, 2026850$13.37$11.4K
Oct 9, 2026368,304$13.65$5.03M
Oct 8, 202693,284$14.40$1.34M
Oct 6, 2026101,006$14.79$1.49M
Oct 5, 2026709$15.49$11.0K
Oct 2, 202627,174$14.91$405.2K
Oct 1, 202659,922$14.80$886.8K
Sep 30, 202617,572$15.09$265.2K
Sep 22, 2026146,260$17.45$2.55M
Sep 21, 2026114,853$17.01$1.95M
Sep 18, 202648,825$16.47$804.1K
Sep 15, 2026440$15.47$6.81K
Sep 14, 20264,867$16.74$81.5K
Sep 11, 202641,239$16.14$665.6K
Sep 10, 202627$17.13$462.51
Sep 9, 2026226,702$17.86$4.05M
Sep 8, 202611,093$16.51$183.1K
Sep 4, 2026520,287$16.23$8.44M
Sep 3, 202610,454$14.82$154.9K
Aug 26, 202679,522$16.32$1.30M
Aug 25, 202634,883$15.48$540.0K
Aug 24, 20261,368,565$15.64$21.4M
Aug 21, 20261,057$16.45$17.4K
Aug 19, 2026367,961$15.62$5.75M
Aug 18, 2026165,126$17.60$2.91M
Aug 17, 2026146,192$17.38$2.54M
Aug 14, 2026322,603$16.31$5.26M
Aug 13, 2026463,564$17.19$7.97M
Aug 7, 20266$17.62$105.72

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 WULF by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 12, 20267,539,80898,49618,774,20840.2%
Nov 11, 20269,279,221148,83022,185,30041.8%
Nov 10, 20267,285,940101,97619,614,01837.1%
Nov 9, 20269,063,393138,21432,692,94227.7%
Nov 6, 202612,246,620367,84557,445,82821.3%
Nov 5, 202610,249,033413,47142,549,30624.1%
Nov 4, 20269,870,86735,84828,448,91334.7%
Nov 3, 20269,319,178129,29222,466,66141.5%
Nov 2, 20266,307,532250,04716,480,27038.3%
Oct 30, 20267,486,266128,55422,934,93032.6%
Oct 29, 20267,579,413155,05718,836,35740.2%
Oct 28, 202611,431,297131,32023,319,45549.0%
Oct 27, 20267,784,640181,50317,744,55943.9%
Oct 26, 20269,433,51255,81521,045,83644.8%
Oct 23, 20266,475,593788,28015,757,00141.1%
Oct 22, 20267,597,695589,76421,323,57435.6%
Oct 21, 202610,896,40568,51821,005,07951.9%
Oct 20, 20267,331,56582,55616,308,01645.0%
Oct 19, 20267,125,078113,83117,019,23441.9%
Oct 16, 202612,256,5921,388,70925,875,47147.4%
Oct 15, 202616,837,6212,141,97951,899,00432.4%
Oct 14, 20268,438,234695,84924,555,17934.4%
Oct 13, 20266,579,70746,26215,514,02442.4%
Oct 12, 20262,806,52819,4257,076,93539.7%
Oct 9, 20263,131,05429,8516,258,47250.0%
Oct 8, 20266,550,73133,52119,309,80833.9%
Oct 7, 20265,181,757243,43112,388,44841.8%
Oct 6, 20266,797,75123,47714,722,01146.2%
Oct 5, 20268,064,76219,40314,787,50654.5%
Oct 2, 20264,552,83521,79911,518,35439.5%

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 WULF
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T135,364,242171,80762,737,268110,22136.0%
Oct 12, 2026T153,295,760221,97379,904,587128,80640.0%
Oct 5, 2026T124,349,915159,34549,823,095127,08032.8%
Sep 28, 2026T117,375,165154,93138,365,89581,45331.2%
Sep 21, 2026T118,454,871139,40049,351,09987,87827.2%
Sep 14, 2026T124,608,321195,01450,385,181113,86632.8%
Sep 7, 2026T119,309,028146,74736,004,38181,63934.9%
Aug 31, 2026T119,017,822153,36547,318,13890,74028.7%
Aug 24, 2026T120,737,738182,72942,355,56796,87632.9%
Aug 17, 2026T134,169,652225,89356,330,907132,56237.8%
Aug 10, 2026T127,051,959207,30947,268,742112,80636.4%
Aug 3, 2026T128,933,537209,95244,051,663139,56439.6%