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Parsons Corp

PSN
Exchange
NYSE
Industry
Services-Computer Integrated Systems Design
SEC CIK
0000275880

No open-market purchases or sales by Parsons Corp insiders were filed in the last 90 days; 343 institutions reported holding it in 13F filings for Q2 2026, worth $5.73B 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
5.50M
Shares, settlement Oct 30, 2026
Change
−277.3K
−4.8% vs. Oct 15, 2026
Days to cover
4.50
Short interest ÷ average daily volume
Average daily volume
1.22M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 2,708,489 sharesNov 15, 2024: 2,689,351 sharesNov 29, 2024: 3,049,517 sharesDec 13, 2024: 3,062,277 sharesDec 31, 2024: 2,978,403 sharesJan 15, 2025: 3,251,639 sharesJan 31, 2025: 4,616,498 sharesFeb 14, 2025: 5,644,817 sharesFeb 28, 2025: 6,051,065 sharesMar 14, 2025: 6,596,589 sharesMar 31, 2025: 5,900,474 sharesApr 15, 2025: 4,528,650 sharesApr 30, 2025: 5,147,087 sharesMay 15, 2025: 6,738,834 sharesMay 30, 2025: 6,334,658 sharesJun 13, 2025: 6,165,825 sharesJun 30, 2025: 6,644,329 sharesJul 15, 2025: 6,855,969 sharesJul 31, 2025: 6,555,817 sharesAug 15, 2025: 6,692,369 sharesAug 29, 2025: 6,097,597 sharesSep 15, 2025: 6,276,543 sharesSep 30, 2025: 6,399,850 sharesOct 15, 2025: 6,676,965 sharesOct 31, 2025: 5,903,325 sharesNov 14, 2025: 5,717,238 sharesNov 28, 2025: 5,087,460 sharesDec 15, 2025: 5,083,730 sharesDec 31, 2025: 4,323,978 sharesJan 15, 2026: 4,860,912 sharesJan 30, 2026: 4,511,571 sharesFeb 13, 2026: 4,502,398 sharesFeb 27, 2026: 4,886,048 sharesMar 13, 2026: 4,611,590 sharesMar 31, 2026: 4,978,965 sharesApr 15, 2026: 5,312,387 sharesApr 30, 2026: 4,641,416 sharesMay 15, 2026: 4,787,670 sharesMay 29, 2026: 5,934,325 sharesJun 15, 2026: 6,205,164 sharesJun 30, 2026: 6,308,811 sharesJul 15, 2026: 5,718,755 sharesJul 31, 2026: 6,400,467 sharesAug 14, 2026: 5,377,083 sharesAug 31, 2026: 5,458,775 sharesSep 15, 2026: 5,335,612 sharesSep 30, 2026: 5,535,180 sharesOct 15, 2026: 5,772,844 sharesOct 30, 2026: 5,495,523 shares
Short interest in PSN by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20265.50M−277.3K−4.8%1.22M4.50
Oct 15, 20265.77M+237.7K+4.3%1.26M4.59
Sep 30, 20265.54M+199.6K+3.7%1.19M4.65
Sep 15, 20265.34M−123.2K−2.3%1.20M4.44
Aug 31, 20265.46M+81.7K+1.5%957.8K5.70
Aug 14, 20265.38M−1.02M−16.0%1.43M3.76
Jul 31, 20266.40M+681.7K+11.9%2.32M2.76
Jul 15, 20265.72M−590.1K−9.4%961.6K5.95
Jun 30, 20266.31M+103.6K+1.7%1.34M4.71
Jun 15, 20266.21M+270.8K+4.6%994.2K6.24
May 29, 20265.93M+1.15M+24.0%1.41M4.21
May 15, 20264.79M+146.3K+3.2%1.31M3.65
Apr 30, 20264.64M−671.0K−12.6%1.45M3.19
Apr 15, 20265.31M+333.4K+6.7%890.6K5.96
Mar 31, 20264.98M+367.4K+8.0%1.56M3.19
Mar 13, 20264.61M−274.5K−5.6%1.20M3.83
Feb 27, 20264.89M+383.6K+8.5%1.29M3.79
Feb 13, 20264.50M−9.17K−0.2%1.52M2.96
Jan 30, 20264.51M−349.3K−7.2%958.1K4.71
Jan 15, 20264.86M+536.9K+12.4%1.32M3.69
Dec 31, 20254.32M−759.8K−14.9%1.16M3.72
Dec 15, 20255.08M−3.73K−0.1%3.04M1.67
Nov 28, 20255.09M−629.8K−11.0%824.7K6.17
Nov 14, 20255.72M−186.1K−3.2%1.26M4.55
Oct 31, 20255.90M−773.6K−11.6%693.5K8.51
Oct 15, 20256.68M+277.1K+4.3%912.0K7.32
Sep 30, 20256.40M+123.3K+2.0%1.31M4.90
Sep 15, 20256.28M+178.9K+2.9%1.05M5.96
Aug 29, 20256.10M−594.8K−8.9%741.6K8.22
Aug 15, 20256.69M+136.6K+2.1%1.22M5.50
Jul 31, 20256.56M−300.2K−4.4%850.2K7.71
Jul 15, 20256.86M+211.6K+3.2%1.12M6.13
Jun 30, 20256.64M+478.5K+7.8%1.29M5.17
Jun 13, 20256.17M−168.8K−2.7%1.65M3.74
May 30, 20256.33M−404.2K−6.0%1.28M4.96
May 15, 20256.74M+1.59M+30.9%1.72M3.92
Apr 30, 20255.15M+618.4K+13.7%1.47M3.51
Apr 15, 20254.53M−1.37M−23.3%1.62M2.80
Mar 31, 20255.90M−696.1K−10.6%990.9K5.95
Mar 14, 20256.60M+545.5K+9.0%1.75M3.77
Feb 28, 20256.05M+406.2K+7.2%2.50M2.42
Feb 14, 20255.64M+1.03M+22.3%1.18M4.79
Jan 31, 20254.62M+1.36M+42.0%1.82M2.54
Jan 15, 20253.25M+273.2K+9.2%880.6K3.69
Dec 31, 20242.98M−83.9K−2.7%650.5K4.58
Dec 13, 20243.06M+12.8K+0.4%957.1K3.20
Nov 29, 20243.05M+360.2K+13.4%1.00M3.04
Nov 15, 20242.69M−19.1K−0.7%1.01M2.67
Oct 31, 20242.71M−397.6K−12.8%826.7K3.28

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 PSN by settlement date
Settlement dateSharesPriceValue
Oct 14, 2026412$43.78$18.0K
Oct 9, 20263,486$43.02$150.0K
Oct 7, 202625,754$42.10$1.08M
Oct 6, 2026181$42.11$7.62K
Oct 1, 202618$40.97$737.46
Sep 30, 2026325$41.55$13.5K
Sep 8, 202697$47.58$4.62K
Sep 4, 202620$46.35$927
Sep 3, 202624,116$45.37$1.09M
Aug 13, 20263,639$48.28$175.7K
Aug 10, 2026410$47.55$19.5K
Aug 7, 20262,529$47.91$121.2K
Aug 4, 202652$47.61$2.48K
Jul 30, 202636$40.32$1.45K
Jul 28, 2026424$59.47$25.2K
Jul 22, 20262$55.18$110.36
Jul 21, 20261$55.48$55.48
Jul 9, 2026691$56.63$39.1K
Jul 2, 202625$53.16$1.33K
Jun 24, 20261,979$49.24$97.4K
Jun 22, 202683,784$52.21$4.37M
Jun 15, 2026300$56.70$17.0K
Jun 5, 20265,578$60.64$338.2K
Jun 3, 20265,834$60.84$354.9K
Jun 2, 202665$60.66$3.94K
May 29, 20269$58.83$529.47
May 26, 20262,016$53.71$108.3K
May 19, 2026242$51.48$12.5K
May 1, 2026282,623$50.41$14.2M
Apr 2, 2026939$55.09$51.7K

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 PSN by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 2026208,360121347,78559.9%
Nov 9, 2026168,793590275,90261.2%
Nov 6, 2026208,4660384,24954.3%
Nov 5, 2026419,7610540,30077.7%
Nov 4, 2026336,252485485,45869.3%
Nov 3, 2026289,8720579,14850.1%
Nov 2, 2026393,2790719,70054.6%
Oct 30, 2026530,14910731,10572.5%
Oct 29, 2026384,13759501,87576.5%
Oct 28, 2026450,463139886,03450.8%
Oct 27, 2026325,4981,937487,30766.8%
Oct 26, 2026280,760186399,04270.4%
Oct 23, 2026275,321203403,73368.2%
Oct 22, 2026277,0991,054429,03164.6%
Oct 21, 2026303,30029427,76270.9%
Oct 20, 2026175,88331281,76962.4%
Oct 19, 2026123,178300198,50462.1%
Oct 16, 2026239,0384358,98566.6%
Oct 15, 2026211,759800337,45762.8%
Oct 14, 2026190,65919,552347,98154.8%
Oct 13, 2026249,81715,900472,70152.8%
Oct 12, 2026258,5160369,53170.0%
Oct 9, 2026310,313161467,03966.4%
Oct 8, 2026220,540769397,21055.5%
Oct 7, 2026243,0443,108368,30466.0%
Oct 6, 2026205,3491,517362,32156.7%
Oct 5, 2026321,467418591,06254.4%
Oct 2, 2026290,6321221,279,30622.7%
Oct 1, 2026221,3477590,45137.5%
Sep 30, 2026234,4635,561550,24042.6%

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 PSN
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T11,261,19235,574665,0898,36365.5%
Oct 12, 2026T11,491,97733,529526,6249,27173.9%
Oct 5, 2026T11,654,97838,842707,48111,52970.1%
Sep 28, 2026T12,378,38742,1951,123,59410,74467.9%
Sep 21, 2026T11,395,34434,356657,77711,69368.0%
Sep 14, 2026T11,215,61036,8371,156,02111,82851.3%
Sep 7, 2026T11,415,35337,610786,3958,10164.3%
Aug 31, 2026T12,172,24745,794912,4839,74070.4%
Aug 24, 2026T11,261,59032,603607,5419,22167.5%
Aug 17, 2026T11,529,24543,719691,27810,20868.9%
Aug 10, 2026T11,460,01737,829772,5719,20565.4%
Aug 3, 2026T12,916,93653,1641,077,41814,12073.0%