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Seaport Entertainment Group Inc.

SEG
Exchange
NYSE
Industry
Services-Miscellaneous Amusement & Recreation
SEC CIK
0002009684

No open-market purchases or sales by Seaport Entertainment Group Inc. insiders were filed in the last 90 days; 116 institutions reported holding it in 13F filings for Q2 2026, worth $296.0M in total; Pershing Square is the only superinvestor holding 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
631.6K
Shares, settlement Oct 30, 2026
Change
−14.3K
−2.2% vs. Oct 15, 2026
Days to cover
12.32
Short interest ÷ average daily volume
Average daily volume
51.3K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 460,040 sharesNov 15, 2024: 396,835 sharesNov 29, 2024: 406,851 sharesDec 13, 2024: 419,802 sharesDec 31, 2024: 425,305 sharesJan 15, 2025: 435,230 sharesJan 31, 2025: 430,770 sharesFeb 14, 2025: 459,258 sharesFeb 28, 2025: 343,440 sharesMar 14, 2025: 339,289 sharesMar 31, 2025: 345,017 sharesApr 15, 2025: 427,244 sharesApr 30, 2025: 422,277 sharesMay 15, 2025: 472,590 sharesMay 30, 2025: 474,029 sharesJun 13, 2025: 475,465 sharesJun 30, 2025: 507,260 sharesJul 15, 2025: 595,191 sharesJul 31, 2025: 600,085 sharesAug 15, 2025: 704,913 sharesAug 29, 2025: 752,566 sharesSep 15, 2025: 815,562 sharesSep 30, 2025: 745,996 sharesOct 15, 2025: 746,856 sharesOct 31, 2025: 712,074 sharesNov 14, 2025: 741,339 sharesNov 28, 2025: 713,128 sharesDec 15, 2025: 689,059 sharesDec 31, 2025: 666,108 sharesJan 15, 2026: 655,982 sharesJan 30, 2026: 724,449 sharesFeb 13, 2026: 975,630 sharesFeb 27, 2026: 941,675 sharesMar 13, 2026: 854,685 sharesMar 31, 2026: 797,183 sharesApr 15, 2026: 808,296 sharesApr 30, 2026: 789,051 sharesMay 15, 2026: 802,893 sharesMay 29, 2026: 855,409 sharesJun 15, 2026: 881,737 sharesJun 30, 2026: 860,036 sharesJul 15, 2026: 878,610 sharesJul 31, 2026: 866,392 sharesAug 14, 2026: 720,750 sharesAug 31, 2026: 687,390 sharesSep 15, 2026: 668,825 sharesSep 30, 2026: 636,981 sharesOct 15, 2026: 645,961 sharesOct 30, 2026: 631,615 shares
Short interest in SEG by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 2026631.6K−14.3K−2.2%51.3K12.32
Oct 15, 2026646.0K+8.98K+1.4%101.4K6.37
Sep 30, 2026637.0K−31.8K−4.8%91.6K6.95
Sep 15, 2026668.8K−18.6K−2.7%45.5K14.71
Aug 31, 2026687.4K−33.4K−4.6%63.8K10.77
Aug 14, 2026720.8K−145.6K−16.8%103.8K6.94
Jul 31, 2026866.4K−12.2K−1.4%48.0K18.03
Jul 15, 2026878.6K+18.6K+2.2%51.7K16.98
Jun 30, 2026860.0K−21.7K−2.5%70.6K12.18
Jun 15, 2026881.7K+26.3K+3.1%49.5K17.80
May 29, 2026855.4K+52.5K+6.5%106.3K8.05
May 15, 2026802.9K+13.8K+1.8%57.9K13.86
Apr 30, 2026789.1K−19.2K−2.4%44.0K17.95
Apr 15, 2026808.3K+11.1K+1.4%45.3K17.86
Mar 31, 2026797.2K−57.5K−6.7%63.7K12.51
Mar 13, 2026854.7K−87.0K−9.2%85.7K9.97
Feb 27, 2026941.7K−34.0K−3.5%75.5K12.48
Feb 13, 2026975.6K+251.2K+34.7%165.1K5.91
Jan 30, 2026724.4K+68.5K+10.4%74.8K9.68
Jan 15, 2026656.0K−10.1K−1.5%70.0K9.37
Dec 31, 2025666.1K−23.0K−3.3%69.1K9.64
Dec 15, 2025689.1K−24.1K−3.4%71.2K9.68
Nov 28, 2025713.1K−28.2K−3.8%100.3K7.11
Nov 14, 2025741.3K+29.3K+4.1%89.1K8.32
Oct 31, 2025712.1K−34.8K−4.7%51.5K13.83
Oct 15, 2025746.9K+860+0.1%69.1K10.81
Sep 30, 2025746.0K−69.6K−8.5%81.9K9.11
Sep 15, 2025815.6K+63.0K+8.4%88.2K9.25
Aug 29, 2025752.6K+47.7K+6.8%107.1K7.03
Aug 15, 2025704.9K+104.8K+17.5%152.7K4.61
Jul 31, 2025600.1K+4.89K+0.8%87.9K6.83
Jul 15, 2025595.2K+87.9K+17.3%98.1K6.07
Jun 30, 2025507.3K+31.8K+6.7%209.3K2.42
Jun 13, 2025475.5K+1.44K+0.3%62.9K7.56
May 30, 2025474.0K+1.44K+0.3%94.8K5.00
May 15, 2025472.6K+50.3K+11.9%66.7K7.08
Apr 30, 2025422.3K−4.97K−1.2%77.7K5.44
Apr 15, 2025427.2K+82.2K+23.8%111.6K3.83
Mar 31, 2025345.0K+5.73K+1.7%148.5K2.32
Mar 14, 2025339.3K−4.15K−1.2%115.2K2.95
Feb 28, 2025343.4K−115.8K−25.2%134.1K2.56
Feb 14, 2025459.3K+28.5K+6.6%63.8K7.20
Jan 31, 2025430.8K−4.46K−1.0%84.1K5.12
Jan 15, 2025435.2K+9.93K+2.3%83.5K5.21
Dec 31, 2024425.3K+5.50K+1.3%72.3K5.88
Dec 13, 2024419.8K+13.0K+3.2%73.8K5.69
Nov 29, 2024406.9K+10.0K+2.5%70.9K5.74
Nov 15, 2024396.8K−63.2K−13.7%95.6K4.15
Oct 31, 2024460.0K−449.3K−49.4%105.3K4.37

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 SEG by settlement date
Settlement dateSharesPriceValue
Oct 13, 20261,623$22.25$36.1K
Sep 21, 20262,958$24.14$71.4K
Sep 17, 2026619$24.59$15.2K
Sep 3, 2026481$26.33$12.7K
Sep 1, 20261,333$26.29$35.0K
Aug 20, 20265$26.92$134.6
Aug 17, 2026113$27.71$3.13K
Aug 14, 20266$28.60$171.6
Aug 10, 202677$28.25$2.18K
Aug 6, 2026253$26.88$6.80K
Jul 23, 20262,542$25.90$65.8K
Jul 22, 202616$26.29$420.64
Jul 20, 2026991$26.48$26.2K
Jul 16, 20262,569$26.48$68.0K
Jul 15, 2026694$26.12$18.1K
Jul 14, 2026286$25.62$7.33K
Jul 9, 20262,397$26.02$62.4K
Jul 7, 2026124$26.76$3.32K
Jul 2, 20263,730$26.61$99.3K
Jun 29, 202613$27.07$351.91
Jun 25, 20261,154$27.02$31.2K
Jun 23, 2026265$25.49$6.75K
Jun 17, 2026156$24.95$3.89K
Jun 15, 2026802$24.67$19.8K
Jun 9, 20263$23.78$71.34
Jun 2, 2026201$24.55$4.93K
May 29, 2026287$24.50$7.03K
May 27, 2026761$23.71$18.0K
May 21, 20261$23.94$23.94
May 14, 2026353$23.28$8.22K

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 SEG by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 12, 202625,019031,13980.3%
Nov 11, 202611,056036,39730.4%
Nov 10, 202632,153084,23738.2%
Nov 9, 202625,301069,86036.2%
Nov 6, 202633,73217943,33977.8%
Nov 5, 202618,608033,21056.0%
Nov 4, 202610,354014,82169.9%
Nov 3, 202612,159015,32079.4%
Nov 2, 202615,409023,81364.7%
Oct 30, 20267,311010,30171.0%
Oct 29, 20268,109014,14557.3%
Oct 28, 20268,342012,43567.1%
Oct 27, 20267,198015,17747.4%
Oct 26, 20266,270012,89948.6%
Oct 23, 202614,557028,17251.7%
Oct 22, 20266,190214,80341.8%
Oct 21, 202610,729019,01956.4%
Oct 20, 20266,574016,32440.3%
Oct 19, 202612,384023,69552.3%
Oct 16, 20265,227013,58438.5%
Oct 15, 202617,541034,35351.1%
Oct 14, 202648,699587,81455.5%
Oct 13, 202611,26510020,10056.0%
Oct 12, 202616,247031,24252.0%
Oct 9, 20267,744017,31444.7%
Oct 8, 202611,877526,40745.0%
Oct 7, 20266,060021,60728.0%
Oct 6, 202610,093029,21234.6%
Oct 5, 202638,876072,39453.7%
Oct 2, 202617,807035,60250.0%

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 SEG
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2121,7682,88359,3031,09467.2%
Sep 28, 2026T2125,6763,53479,0341,26361.4%
Sep 21, 2026T279,2773,23957,4971,38058.0%
Sep 14, 2026T286,6763,75457,8291,18760.0%
Sep 7, 2026T233,8552,73132,81476250.8%
Aug 31, 2026T248,7192,92427,63290663.8%
Aug 24, 2026T267,9903,94547,31590959.0%
Aug 17, 2026T281,5875,00051,7381,06061.2%
Aug 10, 2026T2135,6436,11483,1911,29362.0%
Aug 3, 2026T285,7234,52161,5161,23858.2%
Jul 27, 2026T246,8053,64339,84188754.0%
Jul 20, 2026T250,7922,82135,61480258.8%