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Telos Corp

TLS
Exchange
Nasdaq
Industry
Services-Computer Integrated Systems Design
SEC CIK
0000320121

In the last 90 days, Telos Corp insiders filed 0 open-market purchases and 7 sales; 159 institutions reported holding it in 13F filings for Q2 2026, worth $232.7M 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
2.36M
Shares, settlement Oct 30, 2026
Change
−236.8K
−9.1% vs. Oct 15, 2026
Days to cover
2.95
Short interest ÷ average daily volume
Average daily volume
799.4K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 2,458,835 sharesNov 15, 2024: 2,826,669 sharesNov 29, 2024: 2,283,864 sharesDec 13, 2024: 2,352,561 sharesDec 31, 2024: 2,306,341 sharesJan 15, 2025: 2,219,241 sharesJan 31, 2025: 2,085,130 sharesFeb 14, 2025: 2,157,979 sharesFeb 28, 2025: 2,118,243 sharesMar 14, 2025: 2,197,172 sharesMar 31, 2025: 2,143,811 sharesApr 15, 2025: 2,325,763 sharesApr 30, 2025: 2,330,014 sharesMay 15, 2025: 1,489,060 sharesMay 30, 2025: 1,454,189 sharesJun 13, 2025: 1,412,391 sharesJun 30, 2025: 1,337,905 sharesJul 15, 2025: 1,385,803 sharesJul 31, 2025: 1,541,722 sharesAug 15, 2025: 2,177,150 sharesAug 29, 2025: 1,727,344 sharesSep 15, 2025: 1,776,166 sharesSep 30, 2025: 1,370,538 sharesOct 15, 2025: 1,113,635 sharesOct 31, 2025: 1,389,717 sharesNov 14, 2025: 1,849,699 sharesNov 28, 2025: 1,830,852 sharesDec 15, 2025: 2,030,378 sharesDec 31, 2025: 1,746,586 sharesJan 15, 2026: 1,453,164 sharesJan 30, 2026: 1,319,988 sharesFeb 13, 2026: 1,236,520 sharesFeb 27, 2026: 1,187,872 sharesMar 13, 2026: 1,320,759 sharesMar 31, 2026: 1,330,969 sharesApr 15, 2026: 1,271,442 sharesApr 30, 2026: 1,266,155 sharesMay 15, 2026: 1,303,283 sharesMay 29, 2026: 1,548,041 sharesJun 15, 2026: 1,655,128 sharesJun 30, 2026: 2,142,597 sharesJul 15, 2026: 2,230,825 sharesJul 31, 2026: 2,439,335 sharesAug 14, 2026: 2,410,929 sharesAug 31, 2026: 2,760,992 sharesSep 15, 2026: 3,083,924 sharesSep 30, 2026: 2,666,663 sharesOct 15, 2026: 2,598,916 sharesOct 30, 2026: 2,362,141 shares
Short interest in TLS by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20262.36M−236.8K−9.1%799.4K2.95
Oct 15, 20262.60M−67.7K−2.5%657.9K3.95
Sep 30, 20262.67M−417.3K−13.5%728.7K3.66
Sep 15, 20263.08M+322.9K+11.7%702.3K4.39
Aug 31, 20262.76M+350.1K+14.5%535.6K5.15
Aug 14, 20262.41M−28.4K−1.2%507.7K4.75
Jul 31, 20262.44M+208.5K+9.4%411.9K5.92
Jul 15, 20262.23M+88.2K+4.1%481.1K4.64
Jun 30, 20262.14M+487.5K+29.5%1.02M2.10
Jun 15, 20261.66M+107.1K+6.9%977.2K1.69
May 29, 20261.55M+244.8K+18.8%960.0K1.61
May 15, 20261.30M+37.1K+2.9%701.0K1.86
Apr 30, 20261.27M−5.29K−0.4%466.1K2.72
Apr 15, 20261.27M−59.5K−4.5%440.2K2.89
Mar 31, 20261.33M+10.2K+0.8%1.23M1.08
Mar 13, 20261.32M+132.9K+11.2%806.7K1.64
Feb 27, 20261.19M−48.6K−3.9%706.6K1.68
Feb 13, 20261.24M−83.5K−6.3%693.7K1.78
Jan 30, 20261.32M−133.2K−9.2%613.6K2.15
Jan 15, 20261.45M−293.4K−16.8%778.6K1.87
Dec 31, 20251.75M−283.8K−14.0%990.6K1.76
Dec 15, 20252.03M+199.5K+10.9%1.04M1.94
Nov 28, 20251.83M−18.8K−1.0%840.1K2.18
Nov 14, 20251.85M+460.0K+33.1%1.44M1.29
Oct 31, 20251.39M+276.1K+24.8%733.4K1.89
Oct 15, 20251.11M−256.9K−18.7%828.3K1.34
Sep 30, 20251.37M−405.6K−22.8%899.8K1.52
Sep 15, 20251.78M+48.8K+2.8%1.20M1.48
Aug 29, 20251.73M−449.8K−20.7%1.37M1.26
Aug 15, 20252.18M+635.4K+41.2%4.07M1.00
Jul 31, 20251.54M+155.9K+11.3%553.0K2.79
Jul 15, 20251.39M+47.9K+3.6%770.2K1.80
Jun 30, 20251.34M−74.5K−5.3%1.27M1.06
Jun 13, 20251.41M−41.8K−2.9%518.7K2.72
May 30, 20251.45M−34.9K−2.3%451.2K3.22
May 15, 20251.49M−841.0K−36.1%2.31M1.00
Apr 30, 20252.33M+4.25K+0.2%408.4K5.71
Apr 15, 20252.33M+182.0K+8.5%402.8K5.77
Mar 31, 20252.14M−53.4K−2.4%281.5K7.62
Mar 14, 20252.20M+78.9K+3.7%412.9K5.32
Feb 28, 20252.12M−39.7K−1.8%326.5K6.49
Feb 14, 20252.16M+72.8K+3.5%301.2K7.16
Jan 31, 20252.09M−134.1K−6.0%276.5K7.54
Jan 15, 20252.22M−87.1K−3.8%260.0K8.54
Dec 31, 20242.31M−46.2K−2.0%343.0K6.72
Dec 13, 20242.35M+68.7K+3.0%346.9K6.78
Nov 29, 20242.28M−542.8K−19.2%744.5K3.07
Nov 15, 20242.83M+367.8K+15.0%1.02M2.76
Oct 31, 20242.46M−734.1K−23.0%219.4K11.21

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 TLS by settlement date
Settlement dateSharesPriceValue
Oct 13, 2026800$4.38$3.50K
Sep 24, 20264,477$4.09$18.3K
Sep 17, 2026486$4.08$1.98K
Sep 2, 202626$4.72$122.72
Aug 19, 20261,496$4.40$6.58K
Aug 3, 2026420$4.44$1.86K
Jul 17, 2026125$4.73$591.25
Jul 2, 202630$4.90$147
Jun 22, 202649,477$4.52$223.6K
Jun 9, 2026471$4.35$2.05K
Apr 24, 20261,767$4.26$7.53K
Apr 21, 20261,754$4.39$7.70K
Mar 27, 202627$4.32$116.64
Mar 20, 20261,924$4.27$8.22K
Mar 19, 20262,525$4.02$10.2K
Mar 18, 20261,794$3.92$7.03K
Mar 17, 20261,284$4.12$5.29K
Feb 5, 2026105$5.18$543.9
Jan 22, 202660$5.58$334.8
Dec 22, 2025300$5.41$1.62K
Dec 18, 2025128$5.20$665.6
Dec 15, 20254$5.68$22.72
Nov 24, 202510,000$5.64$56.4K
Nov 6, 20255,527$6.71$37.1K
Oct 28, 20251,122$7.29$8.18K
Oct 22, 20254$6.91$27.64
Oct 14, 20257,971$6.83$54.4K
Oct 10, 202538,271$7.31$279.8K
Oct 9, 202553,625$7.41$397.4K
Oct 7, 2025168$7.12$1.20K

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 TLS by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 12, 2026101,5142,994339,85329.9%
Nov 11, 2026220,9821,297789,07128.0%
Nov 10, 2026480,6771,3661,264,55838.0%
Nov 9, 2026873,11510,2821,939,64445.0%
Nov 6, 2026209,978300333,81962.9%
Nov 5, 2026179,9107396,54545.4%
Nov 4, 2026202,3396,510381,92953.0%
Nov 3, 2026101,791123187,71354.2%
Nov 2, 2026121,8981,150382,48731.9%
Oct 30, 2026171,8213,179521,72032.9%
Oct 29, 2026159,6111,190432,78936.9%
Oct 28, 2026281,9641,488507,26955.6%
Oct 27, 2026225,3721,501382,97758.8%
Oct 26, 2026272,2092,282427,41363.7%
Oct 23, 2026152,640405311,96848.9%
Oct 22, 202674,654339175,69442.5%
Oct 21, 202675,832166191,65239.6%
Oct 20, 202669,198118126,44754.7%
Oct 19, 2026113,3920192,84558.8%
Oct 16, 202695,4790177,45453.8%
Oct 15, 202659,90565135,09344.3%
Oct 14, 202661,405388173,45435.4%
Oct 13, 202669,4280163,05042.6%
Oct 12, 202685,344312336,91625.3%
Oct 9, 2026231,78811425,33854.5%
Oct 8, 202690,402266127,41870.9%
Oct 7, 202650,5278145,98234.6%
Oct 6, 202672,4121,441160,36645.2%
Oct 5, 2026286,0081,485481,88459.4%
Oct 2, 202688,590588143,26761.8%

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 TLS
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2438,5898,1491,090,0726,02428.7%
Sep 28, 2026T2420,6497,280876,5184,36632.4%
Sep 21, 2026T2473,7189,257837,7224,24436.1%
Sep 14, 2026T2607,49213,9801,249,9085,13732.7%
Sep 7, 2026T2345,1648,510939,8293,81826.9%
Aug 31, 2026T2442,50610,181732,5634,23537.7%
Aug 24, 2026T2332,0718,089680,2104,01432.8%
Aug 17, 2026T2321,5309,151384,8872,96445.5%
Aug 10, 2026T2585,74813,449632,0824,15548.1%
Aug 3, 2026T2213,8407,717348,3902,80738.0%
Jul 27, 2026T2410,77210,284333,7682,36655.2%
Jul 20, 2026T2487,54913,297338,1042,78859.1%