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Talen Energy Corp

TLN
Exchange
Nasdaq
Industry
Electric Services
SEC CIK
0001622536

No open-market purchases or sales by Talen Energy Corp insiders were filed in the last 90 days; 651 institutions reported holding it in 13F filings for Q2 2026, worth $18.5B in total; superinvestors Oaktree Capital and Soros Fund Management hold 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
4.58M
Shares, settlement Oct 30, 2026
Change
+365.4K
+8.7% vs. Oct 15, 2026
Days to cover
5.45
Short interest ÷ average daily volume
Average daily volume
840.1K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 2,528,759 sharesNov 15, 2024: 2,357,342 sharesNov 29, 2024: 2,169,726 sharesDec 13, 2024: 2,312,304 sharesDec 31, 2024: 1,997,248 sharesJan 15, 2025: 2,245,165 sharesJan 31, 2025: 1,737,302 sharesFeb 14, 2025: 2,120,796 sharesFeb 28, 2025: 2,152,210 sharesMar 14, 2025: 2,133,281 sharesMar 31, 2025: 1,908,290 sharesApr 15, 2025: 1,914,995 sharesApr 30, 2025: 1,993,062 sharesMay 15, 2025: 2,169,442 sharesMay 30, 2025: 1,908,611 sharesJun 13, 2025: 2,065,555 sharesJun 30, 2025: 2,323,466 sharesJul 15, 2025: 1,803,274 sharesJul 31, 2025: 2,501,980 sharesAug 15, 2025: 2,734,780 sharesAug 29, 2025: 3,556,549 sharesSep 15, 2025: 3,084,052 sharesSep 30, 2025: 3,425,008 sharesOct 15, 2025: 2,578,661 sharesOct 31, 2025: 2,546,763 sharesNov 14, 2025: 2,471,816 sharesNov 28, 2025: 2,229,410 sharesDec 15, 2025: 2,294,568 sharesDec 31, 2025: 2,280,359 sharesJan 15, 2026: 2,241,976 sharesJan 30, 2026: 2,639,675 sharesFeb 13, 2026: 2,539,576 sharesFeb 27, 2026: 2,395,676 sharesMar 13, 2026: 2,541,100 sharesMar 31, 2026: 2,532,391 sharesApr 15, 2026: 2,479,227 sharesApr 30, 2026: 2,346,271 sharesMay 15, 2026: 2,309,625 sharesMay 29, 2026: 2,245,762 sharesJun 15, 2026: 2,370,107 sharesJun 30, 2026: 2,538,663 sharesJul 15, 2026: 2,516,502 sharesJul 31, 2026: 2,272,929 sharesAug 14, 2026: 2,159,249 sharesAug 31, 2026: 2,435,887 sharesSep 15, 2026: 2,708,803 sharesSep 30, 2026: 2,504,938 sharesOct 15, 2026: 4,213,646 sharesOct 30, 2026: 4,579,027 shares
Short interest in TLN by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20264.58M+365.4K+8.7%840.1K5.45
Oct 15, 20264.21M+1.71M+68.2%1.37M3.08
Sep 30, 20262.50M−203.9K−7.5%884.6K2.83
Sep 15, 20262.71M+272.9K+11.2%757.3K3.58
Aug 31, 20262.44M+276.6K+12.8%926.1K2.63
Aug 14, 20262.16M−113.7K−5.0%773.1K2.79
Jul 31, 20262.27M−243.6K−9.7%687.2K3.31
Jul 15, 20262.52M−22.2K−0.9%679.2K3.71
Jun 30, 20262.54M+168.6K+7.1%1.26M2.02
Jun 15, 20262.37M+124.3K+5.5%721.8K3.28
May 29, 20262.25M−63.9K−2.8%787.0K2.85
May 15, 20262.31M−36.6K−1.6%755.9K3.06
Apr 30, 20262.35M−133.0K−5.4%584.0K4.02
Apr 15, 20262.48M−53.2K−2.1%626.7K3.96
Mar 31, 20262.53M−8.71K−0.3%774.6K3.27
Mar 13, 20262.54M+145.4K+6.1%855.2K2.97
Feb 27, 20262.40M−143.9K−5.7%604.8K3.96
Feb 13, 20262.54M−100.1K−3.8%1.02M2.48
Jan 30, 20262.64M+397.7K+17.7%1.02M2.58
Jan 15, 20262.24M−38.4K−1.7%852.9K2.63
Dec 31, 20252.28M−14.2K−0.6%759.0K3.00
Dec 15, 20252.29M+65.2K+2.9%920.8K2.49
Nov 28, 20252.23M−242.4K−9.8%765.3K2.91
Nov 14, 20252.47M−74.9K−2.9%946.3K2.61
Oct 31, 20252.55M−31.9K−1.2%936.7K2.72
Oct 15, 20252.58M−846.3K−24.7%763.4K3.38
Sep 30, 20253.43M+341.0K+11.1%727.5K4.71
Sep 15, 20253.08M−472.5K−13.3%721.8K4.27
Aug 29, 20253.56M+821.8K+30.1%1.62M2.20
Aug 15, 20252.73M+232.8K+9.3%989.8K2.76
Jul 31, 20252.50M+698.7K+38.8%1.60M1.57
Jul 15, 20251.80M−520.2K−22.4%936.9K1.92
Jun 30, 20252.32M+257.9K+12.5%1.15M2.02
Jun 13, 20252.07M+156.9K+8.2%1.26M1.63
May 30, 20251.91M−260.8K−12.0%609.5K3.13
May 15, 20252.17M+176.4K+8.9%1.00M2.16
Apr 30, 20251.99M+78.1K+4.1%674.0K2.96
Apr 15, 20251.91M+6.71K+0.4%1.23M1.55
Mar 31, 20251.91M−225.0K−10.6%1.04M1.83
Mar 14, 20252.13M−18.9K−0.9%1.92M1.11
Feb 28, 20252.15M+31.4K+1.5%1.41M1.52
Feb 14, 20252.12M+383.5K+22.1%759.2K2.79
Jan 31, 20251.74M−507.9K−22.6%1.72M1.01
Jan 15, 20252.25M+247.9K+12.4%907.7K2.47
Dec 31, 20242.00M−315.1K−13.6%541.6K3.69
Dec 13, 20242.31M+142.6K+6.6%706.5K3.27
Nov 29, 20242.17M−187.6K−8.0%813.7K2.67
Nov 15, 20242.36M−171.4K−6.8%1.56M1.51
Oct 31, 20242.53M+405.9K+19.1%847.8K2.98

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 TLN by settlement date
Settlement dateSharesPriceValue
Oct 14, 2026924$382.14$353.1K
Oct 13, 20267,242$379.77$2.75M
Oct 9, 20261,232$359.22$442.6K
Oct 8, 20261,073$378.32$405.9K
Oct 7, 20261,249$373.11$466.0K
Oct 5, 20262,839$320.77$910.7K
Oct 2, 2026588$323.09$190.0K
Sep 30, 20261,698$314.84$534.6K
Sep 21, 2026224,739$292.30$65.7M
Sep 8, 20261,036$317.00$328.4K
Aug 27, 20261,265$306.29$387.5K
Aug 12, 20266$357.88$2.15K
Aug 3, 2026148$334.10$49.4K
Jul 30, 202640$316.19$12.6K
Jul 27, 202646$359.90$16.6K
Jul 20, 2026488$372.37$181.7K
Jul 17, 2026127$368.29$46.8K
Jul 16, 202626$400.12$10.4K
Jul 2, 202630$360.79$10.8K
Jul 1, 202638$384.26$14.6K
Jun 23, 2026635$438.12$278.2K
Jun 15, 20269$360.54$3.24K
Jun 12, 20261,221$344.80$421.0K
Jun 3, 2026611$385.51$235.5K
Jun 2, 2026175$377.20$66.0K
Jun 1, 202672$386.80$27.8K
May 26, 2026444$372.45$165.4K
May 20, 2026990$314.57$311.4K
May 19, 20261,002$324.21$324.9K
May 15, 20264,810$352.88$1.70M

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 TLN by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 2026174,0856252,06869.1%
Nov 9, 2026296,123174463,32163.9%
Nov 6, 2026381,440280633,34960.2%
Nov 5, 2026491,73010,829856,62757.4%
Nov 4, 2026628,58610,379960,91165.4%
Nov 3, 2026599,6625922,90865.0%
Nov 2, 2026184,3769377,91848.8%
Oct 30, 2026157,6403350,18645.0%
Oct 29, 2026142,4200234,44260.7%
Oct 28, 2026135,05113209,78064.4%
Oct 27, 2026152,09128267,48056.9%
Oct 26, 2026197,59914289,77468.2%
Oct 23, 2026188,44540325,71357.9%
Oct 22, 2026325,603492555,91158.6%
Oct 21, 2026265,26145468,76856.6%
Oct 20, 2026145,96031275,26853.0%
Oct 19, 2026202,7061410,90349.3%
Oct 16, 2026227,87161341,99866.6%
Oct 15, 2026241,4561,328492,27149.0%
Oct 14, 2026218,05312450,08448.4%
Oct 13, 2026158,699176420,97437.7%
Oct 12, 2026401,769302620,06764.8%
Oct 9, 2026273,97716451,72360.7%
Oct 8, 2026355,186449535,32866.3%
Oct 7, 2026515,338271685,12775.2%
Oct 6, 2026681,2444591,339,30050.9%
Oct 5, 2026277,916108442,05262.9%
Oct 2, 2026297,392426492,63760.4%
Oct 1, 2026357,040252525,33768.0%
Sep 30, 2026456,30123658,04969.3%

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 TLN
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T11,612,77548,126606,83115,88172.7%
Oct 12, 2026T11,837,54857,802610,04318,58475.1%
Oct 5, 2026T12,588,56677,8021,220,46825,93768.0%
Sep 28, 2026T11,908,96560,658546,36716,16677.7%
Sep 21, 2026T11,050,67841,407421,38215,66271.4%
Sep 14, 2026T11,315,14847,112732,35417,87764.2%
Sep 7, 2026T1734,34332,034346,93812,76167.9%
Aug 31, 2026T11,126,27649,491582,96016,06565.9%
Aug 24, 2026T1920,77844,369636,28817,64959.1%
Aug 17, 2026T12,056,88868,098838,78420,82771.0%
Aug 10, 2026T1977,40243,185354,83212,99773.4%
Aug 3, 2026T11,632,91354,485480,39317,42477.3%