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First Financial Bankshares Inc

FFIN
Exchange
Nasdaq
Industry
State Commercial Banks
SEC CIK
0000036029

In the last 90 days, First Financial Bankshares Inc insiders filed 4 open-market purchases and 1 sale; 357 institutions reported holding it in 13F filings for Q2 2026, worth $3.25B 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
8.73M
Shares, settlement Oct 30, 2026
Change
−517.6K
−5.6% vs. Oct 15, 2026
Days to cover
6.85
Short interest ÷ average daily volume
Average daily volume
1.27M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 7,543,643 sharesNov 15, 2024: 7,523,697 sharesNov 29, 2024: 7,571,546 sharesDec 13, 2024: 7,960,894 sharesDec 31, 2024: 7,464,675 sharesJan 15, 2025: 7,483,470 sharesJan 31, 2025: 7,446,521 sharesFeb 14, 2025: 7,525,525 sharesFeb 28, 2025: 7,570,463 sharesMar 14, 2025: 7,814,466 sharesMar 31, 2025: 7,279,070 sharesApr 15, 2025: 7,311,715 sharesApr 30, 2025: 7,371,862 sharesMay 15, 2025: 7,733,937 sharesMay 30, 2025: 7,288,781 sharesJun 13, 2025: 7,597,111 sharesJun 30, 2025: 7,597,655 sharesJul 15, 2025: 7,265,262 sharesJul 31, 2025: 6,942,895 sharesAug 15, 2025: 7,086,715 sharesAug 29, 2025: 7,256,253 sharesSep 15, 2025: 7,440,274 sharesSep 30, 2025: 7,347,484 sharesOct 15, 2025: 7,653,522 sharesOct 31, 2025: 7,390,718 sharesNov 14, 2025: 7,708,428 sharesNov 28, 2025: 7,911,016 sharesDec 15, 2025: 7,537,687 sharesDec 31, 2025: 7,475,526 sharesJan 15, 2026: 7,406,561 sharesJan 30, 2026: 7,276,510 sharesFeb 13, 2026: 7,698,315 sharesFeb 27, 2026: 7,793,322 sharesMar 13, 2026: 8,096,652 sharesMar 31, 2026: 8,311,410 sharesApr 15, 2026: 8,112,420 sharesApr 30, 2026: 8,246,083 sharesMay 15, 2026: 8,251,992 sharesMay 29, 2026: 8,154,697 sharesJun 15, 2026: 8,473,928 sharesJun 30, 2026: 8,682,356 sharesJul 15, 2026: 8,568,399 sharesJul 31, 2026: 8,403,942 sharesAug 14, 2026: 8,377,182 sharesAug 31, 2026: 8,510,783 sharesSep 15, 2026: 9,032,215 sharesSep 30, 2026: 9,244,704 sharesOct 15, 2026: 9,243,429 sharesOct 30, 2026: 8,725,839 shares
Short interest in FFIN by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20268.73M−517.6K−5.6%1.27M6.85
Oct 15, 20269.24M−1.27K0.0%933.7K9.90
Sep 30, 20269.24M+212.5K+2.4%936.5K9.87
Sep 15, 20269.03M+521.4K+6.1%647.7K13.95
Aug 31, 20268.51M+133.6K+1.6%628.2K13.55
Aug 14, 20268.38M−26.8K−0.3%596.2K14.05
Jul 31, 20268.40M−164.5K−1.9%837.2K10.04
Jul 15, 20268.57M−114.0K−1.3%759.8K11.28
Jun 30, 20268.68M+208.4K+2.5%1.46M5.95
Jun 15, 20268.47M+319.2K+3.9%908.9K9.32
May 29, 20268.15M−97.3K−1.2%690.2K11.81
May 15, 20268.25M+5.91K+0.1%757.7K10.89
Apr 30, 20268.25M+133.7K+1.7%686.6K12.01
Apr 15, 20268.11M−199.0K−2.4%600.5K13.51
Mar 31, 20268.31M+214.8K+2.7%842.9K9.86
Mar 13, 20268.10M+303.3K+3.9%996.8K8.12
Feb 27, 20267.79M+95.0K+1.2%661.5K11.78
Feb 13, 20267.70M+421.8K+5.8%758.7K10.15
Jan 30, 20267.28M−130.1K−1.8%990.6K7.35
Jan 15, 20267.41M−69.0K−0.9%753.4K9.83
Dec 31, 20257.48M−62.2K−0.8%841.6K8.88
Dec 15, 20257.54M−373.3K−4.7%882.2K8.54
Nov 28, 20257.91M+202.6K+2.6%616.5K12.83
Nov 14, 20257.71M+317.7K+4.3%550.2K14.01
Oct 31, 20257.39M−262.8K−3.4%684.0K10.81
Oct 15, 20257.65M+306.0K+4.2%478.5K15.99
Sep 30, 20257.35M−92.8K−1.3%545.9K13.46
Sep 15, 20257.44M+184.0K+2.5%439.4K16.93
Aug 29, 20257.26M+169.5K+2.4%521.0K13.93
Aug 15, 20257.09M+143.8K+2.1%612.2K11.58
Jul 31, 20256.94M−322.4K−4.4%567.3K12.24
Jul 15, 20257.27M−332.4K−4.4%452.5K16.06
Jun 30, 20257.60M+5440.0%749.8K10.13
Jun 13, 20257.60M+308.3K+4.2%469.1K16.20
May 30, 20257.29M−445.2K−5.8%476.4K15.30
May 15, 20257.73M+362.1K+4.9%431.5K17.92
Apr 30, 20257.37M+60.1K+0.8%478.9K15.39
Apr 15, 20257.31M+32.6K+0.5%688.7K10.62
Mar 31, 20257.28M−535.4K−6.9%577.0K12.62
Mar 14, 20257.81M+244.0K+3.2%566.7K13.79
Feb 28, 20257.57M+44.9K+0.6%468.5K16.16
Feb 14, 20257.53M+79.0K+1.1%380.5K19.78
Jan 31, 20257.45M−36.9K−0.5%484.0K15.39
Jan 15, 20257.48M+18.8K+0.3%558.4K13.40
Dec 31, 20247.46M−496.2K−6.2%566.4K13.18
Dec 13, 20247.96M+389.3K+5.1%400.8K19.86
Nov 29, 20247.57M+47.8K+0.6%431.5K17.55
Nov 15, 20247.52M−19.9K−0.3%645.1K11.66
Oct 31, 20247.54M−332.9K−4.2%413.2K18.26

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 FFIN by settlement date
Settlement dateSharesPriceValue
Oct 9, 2026152$31.43$4.78K
Oct 7, 202681$31.92$2.59K
Oct 5, 20261,076$32.15$34.6K
Sep 30, 20261,672$31.73$53.1K
Sep 18, 202669$32.84$2.27K
Sep 14, 2026650$33.16$21.6K
Sep 9, 2026553$33.11$18.3K
Sep 3, 202617,691$33.22$587.7K
Aug 31, 202627$33.39$901.53
Aug 27, 2026413$33.67$13.9K
Aug 24, 20263,176$34.13$108.4K
Jul 24, 202654$34.50$1.86K
Jul 17, 202610$36.50$365
Jul 16, 2026106$35.22$3.73K
Jul 10, 202675$34.63$2.60K
Jul 1, 202698$34.60$3.39K
Jun 16, 2026477$33.35$15.9K
Jun 15, 20261,965$33.65$66.1K
Jun 12, 2026488$33.30$16.3K
Jun 9, 2026160$32.68$5.23K
Jun 8, 2026637$32.48$20.7K
May 27, 2026687$32.64$22.4K
May 18, 202627$31.10$839.7
Apr 27, 20262,559$31.96$81.8K
Apr 23, 2026994$31.99$31.8K
Apr 20, 202635$32.47$1.14K
Apr 17, 202698$30.96$3.03K
Mar 30, 2026139$28.99$4.03K
Mar 26, 2026359$29.39$10.6K
Mar 25, 2026356$29.55$10.5K

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 FFIN by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 202669,2684150,88645.9%
Nov 9, 202664,899283192,48933.7%
Nov 6, 202687,771349220,69439.8%
Nov 5, 202691,379308277,81132.9%
Nov 4, 202681,848249269,46230.4%
Nov 3, 2026104,43945307,46034.0%
Nov 2, 2026130,4202,147373,15235.0%
Oct 30, 202674,8768285,73626.2%
Oct 29, 202666,85429180,37037.1%
Oct 28, 202698,328348372,70226.4%
Oct 27, 2026115,027361353,64332.5%
Oct 26, 2026115,72558294,19139.3%
Oct 23, 2026100,4901,040339,13429.6%
Oct 22, 202681,2990445,68718.2%
Oct 21, 2026105,793875371,25228.5%
Oct 20, 202691,5450389,97123.5%
Oct 19, 2026181,76336362,16850.2%
Oct 16, 2026331,28831,264,17626.2%
Oct 15, 2026114,50957249,59745.9%
Oct 14, 2026192,7261,476297,51464.8%
Oct 13, 2026121,52696246,46449.3%
Oct 12, 202692,426279242,64338.1%
Oct 9, 2026106,07227288,35236.8%
Oct 8, 202693,131200348,80126.7%
Oct 7, 202673,5390141,17952.1%
Oct 6, 202689,135464179,15949.8%
Oct 5, 2026115,2070188,04361.3%
Oct 2, 2026141,287546247,68557.0%
Oct 1, 2026179,249125348,56151.4%
Sep 30, 2026145,9031,786240,05060.8%

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 FFIN
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2902,14527,130453,2875,64766.6%
Sep 28, 2026T2877,88829,642692,0716,63555.9%
Sep 21, 2026T2697,40424,686505,5815,72758.0%
Sep 14, 2026T2927,19331,982544,7037,36263.0%
Sep 7, 2026T2542,30221,211355,7774,60260.4%
Aug 31, 2026T2494,13321,503434,9546,25253.2%
Aug 24, 2026T2567,58119,487383,3554,71259.7%
Aug 17, 2026T2589,55222,271419,8044,80158.4%
Aug 10, 2026T2546,67921,985455,0813,54954.6%
Aug 3, 2026T2596,25028,873433,5234,17957.9%
Jul 27, 2026T2776,00527,632520,3505,72359.9%
Jul 20, 2026T2841,05527,992417,6755,80966.8%