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Tactile Systems Technology Inc

TCMD
Exchange
Nasdaq
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001027838

In the last 90 days, Tactile Systems Technology Inc insiders filed 0 open-market purchases and 2 sales; 182 institutions reported holding it in 13F filings for Q2 2026, worth $652.2M in total; no superinvestor holds 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
2.79M
Shares, settlement Oct 30, 2026
Change
−41.1K
−1.5% vs. Oct 15, 2026
Days to cover
16.72
Short interest ÷ average daily volume
Average daily volume
166.8K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 1,259,583 sharesNov 15, 2024: 978,403 sharesNov 29, 2024: 1,004,031 sharesDec 13, 2024: 1,064,090 sharesDec 31, 2024: 1,404,362 sharesJan 15, 2025: 1,510,157 sharesJan 31, 2025: 1,429,843 sharesFeb 14, 2025: 2,481,236 sharesFeb 28, 2025: 2,067,021 sharesMar 14, 2025: 2,102,529 sharesMar 31, 2025: 2,140,436 sharesApr 15, 2025: 2,207,246 sharesApr 30, 2025: 2,168,834 sharesMay 15, 2025: 2,330,288 sharesMay 30, 2025: 2,266,239 sharesJun 13, 2025: 2,420,498 sharesJun 30, 2025: 2,405,053 sharesJul 15, 2025: 2,472,061 sharesJul 31, 2025: 2,285,965 sharesAug 15, 2025: 2,208,738 sharesAug 29, 2025: 2,127,704 sharesSep 15, 2025: 2,071,561 sharesSep 30, 2025: 1,960,021 sharesOct 15, 2025: 1,943,127 sharesOct 31, 2025: 1,836,434 sharesNov 14, 2025: 1,682,581 sharesNov 28, 2025: 1,857,367 sharesDec 15, 2025: 2,092,362 sharesDec 31, 2025: 1,769,844 sharesJan 15, 2026: 1,858,682 sharesJan 30, 2026: 1,829,706 sharesFeb 13, 2026: 1,848,548 sharesFeb 27, 2026: 1,748,345 sharesMar 13, 2026: 1,897,308 sharesMar 31, 2026: 1,672,847 sharesApr 15, 2026: 1,656,036 sharesApr 30, 2026: 1,827,328 sharesMay 15, 2026: 2,305,387 sharesMay 29, 2026: 2,362,243 sharesJun 15, 2026: 2,305,560 sharesJun 30, 2026: 2,444,253 sharesJul 15, 2026: 2,449,398 sharesJul 31, 2026: 2,351,515 sharesAug 14, 2026: 2,551,437 sharesAug 31, 2026: 2,610,235 sharesSep 15, 2026: 2,815,055 sharesSep 30, 2026: 2,849,409 sharesOct 15, 2026: 2,829,763 sharesOct 30, 2026: 2,788,674 shares
Short interest in TCMD by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20262.79M−41.1K−1.5%166.8K16.72
Oct 15, 20262.83M−19.6K−0.7%215.4K13.14
Sep 30, 20262.85M+34.4K+1.2%289.3K9.85
Sep 15, 20262.82M+204.8K+7.9%270.3K10.42
Aug 31, 20262.61M+58.8K+2.3%337.2K7.74
Aug 14, 20262.55M+199.9K+8.5%427.1K5.97
Jul 31, 20262.35M−97.9K−4.0%204.9K11.47
Jul 15, 20262.45M+5.14K+0.2%232.6K10.53
Jun 30, 20262.44M+138.7K+6.0%312.4K7.82
Jun 15, 20262.31M−56.7K−2.4%211.8K10.89
May 29, 20262.36M+56.9K+2.5%272.1K8.68
May 15, 20262.31M+478.1K+26.2%486.4K4.74
Apr 30, 20261.83M+171.3K+10.3%259.0K7.06
Apr 15, 20261.66M−16.8K−1.0%232.8K7.11
Mar 31, 20261.67M−224.5K−11.8%271.0K6.17
Mar 13, 20261.90M+149.0K+8.5%267.7K7.09
Feb 27, 20261.75M−100.2K−5.4%669.6K2.61
Feb 13, 20261.85M+18.8K+1.0%229.6K8.05
Jan 30, 20261.83M−29.0K−1.6%261.6K6.99
Jan 15, 20261.86M+88.8K+5.0%368.5K5.04
Dec 31, 20251.77M−322.5K−15.4%302.6K5.85
Dec 15, 20252.09M+235.0K+12.7%394.6K5.30
Nov 28, 20251.86M+174.8K+10.4%507.0K3.66
Nov 14, 20251.68M−153.9K−8.4%1.02M1.64
Oct 31, 20251.84M−106.7K−5.5%139.9K13.12
Oct 15, 20251.94M−16.9K−0.9%161.2K12.05
Sep 30, 20251.96M−111.5K−5.4%194.7K10.07
Sep 15, 20252.07M−56.1K−2.6%206.0K10.05
Aug 29, 20252.13M−81.0K−3.7%166.5K12.78
Aug 15, 20252.21M−77.2K−3.4%338.5K6.53
Jul 31, 20252.29M−186.1K−7.5%183.1K12.48
Jul 15, 20252.47M+67.0K+2.8%177.1K13.96
Jun 30, 20252.41M−15.4K−0.6%250.9K9.59
Jun 13, 20252.42M+154.3K+6.8%259.9K9.31
May 30, 20252.27M−64.0K−2.8%363.0K6.24
May 15, 20252.33M+161.5K+7.4%552.2K4.22
Apr 30, 20252.17M−38.4K−1.7%162.6K13.34
Apr 15, 20252.21M+66.8K+3.1%267.8K8.24
Mar 31, 20252.14M+37.9K+1.8%178.4K12.00
Mar 14, 20252.10M+35.5K+1.7%266.3K7.90
Feb 28, 20252.07M−414.2K−16.7%463.3K4.46
Feb 14, 20252.48M+1.05M+73.5%306.7K8.09
Jan 31, 20251.43M−80.3K−5.3%216.5K6.60
Jan 15, 20251.51M+105.8K+7.5%195.4K7.73
Dec 31, 20241.40M+340.3K+32.0%256.7K5.47
Dec 13, 20241.06M+60.1K+6.0%240.7K4.42
Nov 29, 20241.00M+25.6K+2.6%494.3K2.03
Nov 15, 2024978.4K−281.2K−22.3%385.8K2.54
Oct 31, 20241.26M−72.1K−5.4%106.6K11.82

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 TCMD by settlement date
Settlement dateSharesPriceValue
Oct 13, 20264$22.62$90.48
Oct 5, 20262,194$22.10$48.5K
Sep 29, 2026998$22.82$22.8K
Sep 25, 20261$22.89$22.89
Sep 18, 2026186$22.56$4.20K
Sep 14, 202648$22.40$1.08K
Sep 11, 2026134$22.32$2.99K
Sep 9, 2026925$21.73$20.1K
Aug 27, 20267$23.51$164.57
Aug 21, 20267,140$23.43$167.3K
Jul 23, 2026171$27.62$4.72K
Jul 1, 202649,552$29.78$1.48M
Jun 23, 202629$26.22$760.38
Jun 18, 2026306$25.83$7.90K
Jun 17, 202622$26.43$581.46
Jun 12, 2026609$26.35$16.0K
May 6, 20264$24.05$96.2
May 5, 20267$22.43$157.01
Apr 28, 20263,544$24.24$85.9K
Apr 15, 20265$25.06$125.3
Apr 2, 2026461$25.97$12.0K
Apr 1, 2026457$26.13$11.9K
Mar 24, 202693$26.51$2.47K
Mar 23, 2026418$26.10$10.9K
Mar 20, 2026200$27.07$5.41K
Mar 19, 202623$27.03$621.69
Mar 17, 20262$27.30$54.6
Mar 16, 20265$26.93$134.65
Mar 6, 202694$29.41$2.76K
Feb 27, 20262,831$29.91$84.7K

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 TCMD by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 202621,66120056,18138.6%
Nov 9, 202631,457064,73348.6%
Nov 6, 202645,560087,24952.2%
Nov 5, 202646,324095,15148.7%
Nov 4, 2026164,1150366,36044.8%
Nov 3, 2026122,1250192,23163.5%
Nov 2, 202640,716076,23853.4%
Oct 30, 202636,60120064,73756.5%
Oct 29, 202632,265050,65263.7%
Oct 28, 202625,9623534,37375.5%
Oct 27, 202623,575057,40241.1%
Oct 26, 202649,28010054,91889.7%
Oct 23, 202635,493044,62579.5%
Oct 22, 202634,015044,59376.3%
Oct 21, 202645,461963,68671.4%
Oct 20, 202640,022093,67142.7%
Oct 19, 202632,18634358,15955.3%
Oct 16, 202658,518078,73574.3%
Oct 15, 202645,136377,52958.2%
Oct 14, 202623,687045,80751.7%
Oct 13, 202628,480050,45956.4%
Oct 12, 202629,429064,91445.3%
Oct 9, 202624,949050,39949.5%
Oct 8, 202688,6390136,67864.9%
Oct 7, 202642,423078,90153.8%
Oct 6, 202636,721048,31376.0%
Oct 5, 202626,402070,11937.7%
Oct 2, 202654,8400110,04749.8%
Oct 1, 202623,907144,35353.9%
Sep 30, 202637,197066,98155.5%

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 TCMD
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2285,0666,636296,7661,38949.0%
Sep 28, 2026T2254,3968,694102,7931,83371.2%
Sep 21, 2026T2333,02010,198126,7921,84972.4%
Sep 14, 2026T2433,4229,787382,3942,23953.1%
Sep 7, 2026T2291,51810,629299,1011,99449.4%
Aug 31, 2026T2267,18411,846216,1862,56055.3%
Aug 24, 2026T2265,0939,364214,6222,32655.3%
Aug 17, 2026T2569,15317,679401,1263,42658.7%
Aug 10, 2026T2936,25924,423444,3114,15067.8%
Aug 3, 2026T2190,91211,83796,2692,23466.5%
Jul 27, 2026T2236,7969,998112,8671,96767.7%
Jul 20, 2026T2238,92312,324123,0711,50466.0%