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Owens Corning

OC
Exchange
NYSE
Industry
Abrasive, Asbestos & Misc Nonmetallic Mineral Prods
SEC CIK
0001370946

In the last 90 days, Owens Corning insiders filed 0 open-market purchases and 1 sale; 697 institutions reported holding it in 13F filings for Q2 2026, worth $13.1B in total; Harris Associates (Oakmark) 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
2.66M
Shares, settlement Oct 30, 2026
Change
−234.2K
−8.1% vs. Oct 15, 2026
Days to cover
3.01
Short interest ÷ average daily volume
Average daily volume
882.7K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 1,566,881 sharesNov 15, 2024: 1,550,494 sharesNov 29, 2024: 1,479,257 sharesDec 13, 2024: 1,446,499 sharesDec 31, 2024: 786,697 sharesJan 15, 2025: 903,264 sharesJan 31, 2025: 1,022,729 sharesFeb 14, 2025: 976,724 sharesFeb 28, 2025: 1,012,270 sharesMar 14, 2025: 1,251,946 sharesMar 31, 2025: 1,231,944 sharesApr 15, 2025: 1,149,550 sharesApr 30, 2025: 1,229,404 sharesMay 15, 2025: 1,073,669 sharesMay 30, 2025: 1,509,849 sharesJun 13, 2025: 1,927,577 sharesJun 30, 2025: 1,845,255 sharesJul 15, 2025: 1,283,510 sharesJul 31, 2025: 1,760,612 sharesAug 15, 2025: 1,592,347 sharesAug 29, 2025: 1,663,763 sharesSep 15, 2025: 2,010,961 sharesSep 30, 2025: 2,034,676 sharesOct 15, 2025: 2,196,953 sharesOct 31, 2025: 2,842,146 sharesNov 14, 2025: 2,631,643 sharesNov 28, 2025: 2,718,885 sharesDec 15, 2025: 2,755,852 sharesDec 31, 2025: 2,922,565 sharesJan 15, 2026: 2,574,438 sharesJan 30, 2026: 2,472,333 sharesFeb 13, 2026: 2,753,948 sharesFeb 27, 2026: 2,801,804 sharesMar 13, 2026: 4,120,503 sharesMar 31, 2026: 5,165,894 sharesApr 15, 2026: 4,498,397 sharesApr 30, 2026: 4,341,709 sharesMay 15, 2026: 4,914,480 sharesMay 29, 2026: 4,082,885 sharesJun 15, 2026: 4,724,950 sharesJun 30, 2026: 4,354,976 sharesJul 15, 2026: 3,496,230 sharesJul 31, 2026: 2,712,736 sharesAug 14, 2026: 2,051,946 sharesAug 31, 2026: 2,303,452 sharesSep 15, 2026: 2,352,518 sharesSep 30, 2026: 2,402,002 sharesOct 15, 2026: 2,889,368 sharesOct 30, 2026: 2,655,119 shares
Short interest in OC by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20262.66M−234.2K−8.1%882.7K3.01
Oct 15, 20262.89M+487.4K+20.3%1.23M2.36
Sep 30, 20262.40M+49.5K+2.1%1.09M2.21
Sep 15, 20262.35M+49.1K+2.1%1.20M1.97
Aug 31, 20262.30M+251.5K+12.3%770.9K2.99
Aug 14, 20262.05M−660.8K−24.4%942.5K2.18
Jul 31, 20262.71M−783.5K−22.4%897.9K3.02
Jul 15, 20263.50M−858.7K−19.7%1.03M3.41
Jun 30, 20264.35M−370.0K−7.8%1.83M2.38
Jun 15, 20264.72M+642.1K+15.7%984.3K4.80
May 29, 20264.08M−831.6K−16.9%1.17M3.48
May 15, 20264.91M+572.8K+13.2%1.37M3.59
Apr 30, 20264.34M−156.7K−3.5%1.10M3.93
Apr 15, 20264.50M−667.5K−12.9%981.7K4.58
Mar 31, 20265.17M+1.05M+25.4%1.53M3.38
Mar 13, 20264.12M+1.32M+47.1%1.85M2.23
Feb 27, 20262.80M+47.9K+1.7%1.56M1.80
Feb 13, 20262.75M+281.6K+11.4%1.46M1.89
Jan 30, 20262.47M−102.1K−4.0%1.41M1.75
Jan 15, 20262.57M−348.1K−11.9%1.17M2.19
Dec 31, 20252.92M+166.7K+6.1%1.22M2.40
Dec 15, 20252.76M+37.0K+1.4%1.35M2.05
Nov 28, 20252.72M+87.2K+3.3%2.46M1.11
Nov 14, 20252.63M−210.5K−7.4%2.06M1.28
Oct 31, 20252.84M+645.2K+29.4%1.13M2.52
Oct 15, 20252.20M+162.3K+8.0%1.27M1.74
Sep 30, 20252.03M+23.7K+1.2%1.09M1.87
Sep 15, 20252.01M+347.2K+20.9%957.1K2.10
Aug 29, 20251.66M+71.4K+4.5%928.6K1.79
Aug 15, 20251.59M−168.3K−9.6%951.9K1.67
Jul 31, 20251.76M+477.1K+37.2%712.7K2.47
Jul 15, 20251.28M−561.7K−30.4%786.2K1.63
Jun 30, 20251.85M−82.3K−4.3%867.6K2.13
Jun 13, 20251.93M+417.7K+27.7%1.00M1.92
May 30, 20251.51M+436.2K+40.6%873.4K1.73
May 15, 20251.07M−155.7K−12.7%1.05M1.02
Apr 30, 20251.23M+79.9K+7.0%893.9K1.38
Apr 15, 20251.15M−82.4K−6.7%990.9K1.16
Mar 31, 20251.23M−20.0K−1.6%1.03M1.19
Mar 14, 20251.25M+239.7K+23.7%1.42M1.00
Feb 28, 20251.01M+35.5K+3.6%1.30M1.00
Feb 14, 2025976.7K−46.0K−4.5%711.8K1.37
Jan 31, 20251.02M+119.5K+13.2%758.5K1.35
Jan 15, 2025903.3K+116.6K+14.8%600.3K1.50
Dec 31, 2024786.7K−659.8K−45.6%1.19M1.00
Dec 13, 20241.45M−32.8K−2.2%735.0K1.97
Nov 29, 20241.48M−71.2K−4.6%794.8K1.86
Nov 15, 20241.55M−16.4K−1.1%819.2K1.89
Oct 31, 20241.57M−66.0K−4.0%669.3K2.34

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 OC by settlement date
Settlement dateSharesPriceValue
Oct 13, 20265$112.61$563.05
Oct 9, 202636$117.20$4.22K
Oct 8, 202613$114.68$1.49K
Oct 5, 20263,049$118.36$360.9K
Sep 25, 202645$120.72$5.43K
Sep 8, 2026612$138.72$84.9K
Aug 12, 20266$158.92$953.52
Jul 20, 20261,268$143.91$182.5K
Jul 10, 20268$140.26$1.12K
Jul 7, 202611$146.79$1.61K
Jul 2, 20261,143$150.58$172.1K
Jun 30, 20269,862$156.05$1.54M
Jun 23, 2026144$124.62$17.9K
Jun 11, 2026124$115.08$14.3K
Jun 2, 2026847$122.62$103.9K
May 28, 202634,886$122.25$4.26M
May 26, 2026785$117.42$92.2K
May 18, 20264,620$114.08$527.0K
May 11, 20263,008$121.67$366.0K
Apr 28, 2026386$125.52$48.5K
Apr 24, 2026553$125.66$69.5K
Apr 20, 202621,834$122.84$2.68M
Apr 1, 2026155$108.22$16.8K
Mar 26, 20261,835$107.97$198.1K
Mar 23, 2026157$99.96$15.7K
Mar 17, 202617$107.90$1.83K
Mar 10, 2026100$107.25$10.7K
Feb 27, 202639,145$122.28$4.79M
Feb 25, 20261,111$126.63$140.7K
Feb 23, 202620$132.71$2.65K

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 OC by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 2026194,257230283,46568.5%
Nov 9, 2026297,0531,059631,27647.1%
Nov 6, 2026260,319103417,03262.4%
Nov 5, 2026474,4041,198642,74873.8%
Nov 4, 2026860,64901,454,50559.2%
Nov 3, 2026674,78620848,97479.5%
Nov 2, 2026335,3806,607542,14361.9%
Oct 30, 2026182,22315315,32357.8%
Oct 29, 2026221,335363360,63161.4%
Oct 28, 2026134,00717225,65759.4%
Oct 27, 2026140,4261,095260,96153.8%
Oct 26, 2026141,97092276,25551.4%
Oct 23, 2026219,3312327,76866.9%
Oct 22, 2026267,790353379,11670.6%
Oct 21, 2026308,10435442,09469.7%
Oct 20, 2026183,8110281,02665.4%
Oct 19, 2026254,73824370,75068.7%
Oct 16, 2026397,318100508,43778.1%
Oct 15, 2026280,8145589,99847.6%
Oct 14, 2026169,32640301,81756.1%
Oct 13, 2026188,38311372,33550.6%
Oct 12, 2026168,881180295,44257.2%
Oct 9, 2026261,6430409,94563.8%
Oct 8, 2026318,05722427,70974.4%
Oct 7, 2026524,0354,976754,15269.5%
Oct 6, 2026393,16267531,04074.0%
Oct 5, 2026243,01326475,76351.1%
Oct 2, 2026182,01933510,00935.7%
Oct 1, 2026248,782465469,97952.9%
Sep 30, 2026169,7470379,22244.8%

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 OC
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T11,483,31036,193446,1149,28976.9%
Oct 12, 2026T11,672,01939,904580,72410,43474.2%
Oct 5, 2026T12,245,58143,460506,60912,12881.6%
Sep 28, 2026T11,559,47240,836980,74010,70561.4%
Sep 21, 2026T11,418,14035,646826,52910,04463.2%
Sep 14, 2026T11,621,83938,416701,4368,71169.8%
Sep 7, 2026T11,380,05435,363570,9448,43170.7%
Aug 31, 2026T11,667,96838,873647,3419,87672.0%
Aug 24, 2026T11,075,43329,851299,9216,63778.2%
Aug 17, 2026T11,118,51131,546335,3978,29676.9%
Aug 10, 2026T1888,57828,290383,7877,55769.8%
Aug 3, 2026T12,187,91553,309496,3719,80281.5%