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Taiwan Semiconductor Manufacturing Co Ltd

TSM
Exchange
NYSE
Industry
Semiconductors & Related Devices
SEC CIK
0001046179

In the last 90 days, Taiwan Semiconductor Manufacturing Co Ltd insiders filed 64 open-market purchases and 0 sales; 3,602 institutions reported holding it in 13F filings for Q2 2026, worth $363.3B in total; 17 superinvestors hold it, including Coatue Management and Tiger Global Management.

Other share classesTSMWF

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
29.3M
Shares, settlement Oct 15, 2026
Change
−1.18M
−3.9% vs. Sep 30, 2026
Days to cover
2.63
Short interest ÷ average daily volume
Average daily volume
11.1M
Shares, as reported by FINRA
Short interest by settlement date
Oct 15, 2024: 25,404,420 sharesOct 31, 2024: 28,225,792 sharesNov 15, 2024: 30,838,423 sharesNov 29, 2024: 30,130,494 sharesDec 13, 2024: 25,449,656 sharesDec 31, 2024: 32,966,479 sharesJan 15, 2025: 31,653,116 sharesJan 31, 2025: 36,354,318 sharesFeb 14, 2025: 33,060,660 sharesFeb 28, 2025: 34,211,479 sharesMar 14, 2025: 31,788,176 sharesMar 31, 2025: 31,715,664 sharesApr 15, 2025: 37,796,721 sharesApr 30, 2025: 31,951,314 sharesMay 15, 2025: 30,092,805 sharesMay 30, 2025: 30,121,814 sharesJun 13, 2025: 26,179,853 sharesJun 30, 2025: 27,340,363 sharesJul 15, 2025: 26,977,663 sharesJul 31, 2025: 28,093,205 sharesAug 15, 2025: 25,496,946 sharesAug 29, 2025: 24,868,451 sharesSep 15, 2025: 26,982,663 sharesSep 30, 2025: 32,276,354 sharesOct 15, 2025: 34,082,449 sharesOct 31, 2025: 33,565,215 sharesNov 14, 2025: 34,644,752 sharesNov 28, 2025: 33,712,418 sharesDec 15, 2025: 25,281,375 sharesDec 31, 2025: 23,909,724 sharesJan 15, 2026: 22,907,569 sharesJan 30, 2026: 19,456,170 sharesFeb 13, 2026: 19,644,862 sharesFeb 27, 2026: 20,156,302 sharesMar 13, 2026: 20,816,498 sharesMar 31, 2026: 22,458,282 sharesApr 15, 2026: 25,635,323 sharesApr 30, 2026: 26,712,803 sharesMay 15, 2026: 28,779,737 sharesMay 29, 2026: 28,282,997 sharesJun 15, 2026: 24,584,916 sharesJun 30, 2026: 27,731,361 sharesJul 15, 2026: 33,350,090 sharesJul 31, 2026: 33,191,967 sharesAug 14, 2026: 30,161,233 sharesAug 31, 2026: 29,835,409 sharesSep 15, 2026: 27,789,695 sharesSep 30, 2026: 30,492,512 sharesOct 15, 2026: 29,310,548 shares
Short interest in TSM by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 15, 202629.3M−1.18M−3.9%11.1M2.63
Sep 30, 202630.5M+2.70M+9.7%9.95M3.06
Sep 15, 202627.8M−2.05M−6.9%9.77M2.84
Aug 31, 202629.8M−325.8K−1.1%9.53M3.13
Aug 14, 202630.2M−3.03M−9.1%10.5M2.88
Jul 31, 202633.2M−158.1K−0.5%16.3M2.03
Jul 15, 202633.4M+5.62M+20.3%14.3M2.34
Jun 30, 202627.7M+3.15M+12.8%15.4M1.80
Jun 15, 202624.6M−3.70M−13.1%13.6M1.80
May 29, 202628.3M−496.7K−1.7%10.8M2.61
May 15, 202628.8M+2.07M+7.7%14.6M1.97
Apr 30, 202626.7M+1.08M+4.2%15.5M1.72
Apr 15, 202625.6M+3.18M+14.2%11.3M2.27
Mar 31, 202622.5M+1.64M+7.9%14.1M1.59
Mar 13, 202620.8M+660.2K+3.3%15.1M1.38
Feb 27, 202620.2M+511.4K+2.6%10.0M2.01
Feb 13, 202619.6M+188.7K+1.0%15.0M1.31
Jan 30, 202619.5M−3.45M−15.1%14.2M1.37
Jan 15, 202622.9M−1.00M−4.2%16.4M1.40
Dec 31, 202523.9M−1.37M−5.4%8.51M2.81
Dec 15, 202525.3M−8.43M−25.0%12.0M2.11
Nov 28, 202533.7M−932.3K−2.7%12.8M2.64
Nov 14, 202534.6M+1.08M+3.2%12.2M2.84
Oct 31, 202533.6M−517.2K−1.5%14.3M2.34
Oct 15, 202534.1M+1.81M+5.6%15.3M2.23
Sep 30, 202532.3M+5.29M+19.6%12.5M2.58
Sep 15, 202527.0M+2.11M+8.5%11.3M2.38
Aug 29, 202524.9M−628.5K−2.5%10.7M2.32
Aug 15, 202525.5M−2.60M−9.2%10.2M2.50
Jul 31, 202528.1M+1.12M+4.1%12.9M2.18
Jul 15, 202527.0M−362.7K−1.3%10.9M2.48
Jun 30, 202527.3M+1.16M+4.4%10.5M2.60
Jun 13, 202526.2M−3.94M−13.1%11.1M2.37
May 30, 202530.1M+29.0K+0.1%11.2M2.70
May 15, 202530.1M−1.86M−5.8%15.4M1.95
Apr 30, 202532.0M−5.85M−15.5%16.1M1.98
Apr 15, 202537.8M+6.08M+19.2%25.6M1.47
Mar 31, 202531.7M−72.5K−0.2%12.8M2.48
Mar 14, 202531.8M−2.42M−7.1%19.8M1.60
Feb 28, 202534.2M+1.15M+3.5%17.2M1.99
Feb 14, 202533.1M−3.29M−9.1%12.6M2.62
Jan 31, 202536.4M+4.70M+14.9%24.0M1.52
Jan 15, 202531.7M−1.31M−4.0%15.8M2.00
Dec 31, 202433.0M+7.52M+29.5%11.8M2.80
Dec 13, 202425.4M−4.68M−15.5%12.4M2.05
Nov 29, 202430.1M−707.9K−2.3%11.1M2.71
Nov 15, 202430.8M+2.61M+9.3%13.2M2.33
Oct 31, 202428.2M+2.82M+11.1%18.7M1.51
Oct 15, 202425.4M−528.1K−2.0%12.0M2.12

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 TSM by settlement date
Settlement dateSharesPriceValue
Oct 13, 2026893$444.35$396.8K
Oct 9, 20267,270$457.99$3.33M
Oct 6, 20267$485.80$3.40K
Oct 5, 20262,734$472.78$1.29M
Oct 2, 2026360$459.20$165.3K
Oct 1, 20262,020$456.19$921.5K
Sep 29, 2026918$452.88$415.7K
Sep 28, 20261,963$450.61$884.5K
Sep 25, 20263,837$451.15$1.73M
Sep 24, 2026351$446.57$156.7K
Sep 23, 2026137$452.00$61.9K
Sep 22, 2026993$445.14$442.0K
Sep 21, 202688,473$434.67$38.5M
Sep 15, 20263,892$418.01$1.63M
Sep 14, 20265,902$433.24$2.56M
Sep 9, 202654$439.00$23.7K
Sep 8, 20262,169$428.91$930.3K
Sep 3, 2026353$415.50$146.7K
Sep 2, 202629,714$414.00$12.3M
Aug 31, 2026100$417.52$41.8K
Aug 20, 202669$412.09$28.4K
Aug 19, 2026880$413.41$363.8K
Aug 14, 202610,769$430.49$4.64M
Aug 13, 2026195$429.15$83.7K
Aug 11, 2026598$418.47$250.2K
Aug 10, 2026358$420.04$150.4K
Aug 6, 20262,246$414.00$929.8K
Aug 5, 202615,565$417.17$6.49M
Jul 31, 2026744$403.31$300.1K
Jul 28, 2026100$399.09$39.9K

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 TSM by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 9, 20261,701,5158,6725,308,87232.1%
Nov 6, 20262,289,754114,3458,454,50027.1%
Nov 5, 20263,357,325110,60417,027,94019.7%
Nov 4, 20261,399,3382,5386,144,91822.8%
Nov 3, 2026702,4822,8093,550,54819.8%
Nov 2, 20261,003,0054,8185,122,51619.6%
Oct 30, 20261,950,0619,1758,839,65622.1%
Oct 29, 20261,076,6621,4753,704,02629.1%
Oct 28, 2026803,8303,9682,881,96927.9%
Oct 27, 20261,242,8393,0783,395,24236.6%
Oct 26, 2026973,3774,4383,741,36826.0%
Oct 23, 20261,182,6966,0733,732,99731.7%
Oct 22, 20263,627,8581,5947,318,94649.6%
Oct 21, 20261,494,3442,5474,283,86034.9%
Oct 20, 20261,702,2932,2584,522,04537.6%
Oct 19, 20261,644,5731,9475,162,10431.9%
Oct 16, 20262,491,0723,7135,753,22643.3%
Oct 15, 20264,040,70613,3419,339,89843.3%
Oct 14, 20261,756,0534,9946,222,60228.2%
Oct 13, 2026665,0861,0243,472,14419.2%
Oct 12, 20261,416,72013,1653,526,11140.2%
Oct 9, 20261,926,4532,3924,081,13947.2%
Oct 8, 20262,422,1579,2684,834,81450.1%
Oct 7, 20261,269,9502,4573,168,48140.1%
Oct 6, 20261,576,37810,5903,557,18644.3%
Oct 5, 20262,038,8872,7814,797,03342.5%
Oct 2, 20261,511,7508,5843,740,76840.4%
Oct 1, 20261,712,4394,2153,734,94745.8%
Sep 30, 20261,693,1466,7033,222,31652.5%
Sep 29, 20261,902,4843,0643,606,40752.8%

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 TSM
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T211,606,671310,15612,814,453410,64147.5%
Sep 28, 2026T29,996,183258,8999,885,101289,25950.3%
Sep 21, 2026T211,226,235263,86710,852,288299,92050.8%
Sep 14, 2026T210,780,810259,64112,865,162287,82345.6%
Sep 7, 2026T29,327,514231,8258,756,601231,92051.6%
Aug 31, 2026T211,203,487262,4618,118,244282,88458.0%
Aug 24, 2026T211,389,846265,14710,211,229276,36252.7%
Aug 17, 2026T210,686,762285,59012,265,908316,57246.6%
Aug 10, 2026T212,628,730285,6519,074,350280,98058.2%
Aug 3, 2026T214,303,078326,21215,280,008332,45748.3%
Jul 27, 2026T222,554,609510,47117,224,056494,74656.7%
Jul 20, 2026T215,818,421384,16712,680,548361,54655.5%