Skip to main content
Livermore
Livermore
US stocksTW
ZHEN

Equifax Inc

EFX
Exchange
NYSE
Industry
Services-Consumer Credit Reporting, Collection Agencies
SEC CIK
0000033185

In the last 90 days, Equifax Inc insiders filed 0 open-market purchases and 4 sales; 843 institutions reported holding it in 13F filings for Q2 2026, worth $19.0B in total; 4 superinvestors hold it, including Harris Associates (Oakmark) and Weitz Investment Management.

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
5.64M
Shares, settlement Oct 30, 2026
Change
+20.5K
+0.4% vs. Oct 15, 2026
Days to cover
2.43
Short interest ÷ average daily volume
Average daily volume
2.32M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 2,480,858 sharesNov 15, 2024: 2,269,418 sharesNov 29, 2024: 2,070,364 sharesDec 13, 2024: 2,216,547 sharesDec 31, 2024: 2,386,125 sharesJan 15, 2025: 2,537,282 sharesJan 31, 2025: 2,160,116 sharesFeb 14, 2025: 2,396,865 sharesFeb 28, 2025: 2,436,554 sharesMar 14, 2025: 2,759,604 sharesMar 31, 2025: 3,293,217 sharesApr 15, 2025: 2,768,011 sharesApr 30, 2025: 3,183,451 sharesMay 15, 2025: 3,232,475 sharesMay 30, 2025: 3,222,430 sharesJun 13, 2025: 2,904,540 sharesJun 30, 2025: 2,999,252 sharesJul 15, 2025: 2,415,864 sharesJul 31, 2025: 2,818,140 sharesAug 15, 2025: 3,296,967 sharesAug 29, 2025: 2,946,218 sharesSep 15, 2025: 3,380,925 sharesSep 30, 2025: 3,597,667 sharesOct 15, 2025: 4,286,171 sharesOct 31, 2025: 3,858,312 sharesNov 14, 2025: 3,738,747 sharesNov 28, 2025: 3,696,448 sharesDec 15, 2025: 3,959,537 sharesDec 31, 2025: 3,308,323 sharesJan 15, 2026: 3,189,779 sharesJan 30, 2026: 3,618,696 sharesFeb 13, 2026: 5,345,609 sharesFeb 27, 2026: 4,925,864 sharesMar 13, 2026: 5,117,763 sharesMar 31, 2026: 4,759,498 sharesApr 15, 2026: 5,471,914 sharesApr 30, 2026: 5,564,716 sharesMay 15, 2026: 5,875,091 sharesMay 29, 2026: 5,893,038 sharesJun 15, 2026: 5,756,656 sharesJun 30, 2026: 6,521,422 sharesJul 15, 2026: 6,626,153 sharesJul 31, 2026: 6,973,116 sharesAug 14, 2026: 6,407,622 sharesAug 31, 2026: 7,797,437 sharesSep 15, 2026: 7,748,296 sharesSep 30, 2026: 5,224,908 sharesOct 15, 2026: 5,617,762 sharesOct 30, 2026: 5,638,215 shares
Short interest in EFX by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20265.64M+20.5K+0.4%2.32M2.43
Oct 15, 20265.62M+392.9K+7.5%1.91M2.94
Sep 30, 20265.22M−2.52M−32.6%2.02M2.58
Sep 15, 20267.75M−49.1K−0.6%1.37M5.64
Aug 31, 20267.80M+1.39M+21.7%1.07M7.27
Aug 14, 20266.41M−565.5K−8.1%1.07M5.98
Jul 31, 20266.97M+347.0K+5.2%2.24M3.12
Jul 15, 20266.63M+104.7K+1.6%1.44M4.62
Jun 30, 20266.52M+764.8K+13.3%2.09M3.11
Jun 15, 20265.76M−136.4K−2.3%1.75M3.29
May 29, 20265.89M+17.9K+0.3%1.44M4.10
May 15, 20265.88M+310.4K+5.6%1.71M3.45
Apr 30, 20265.56M+92.8K+1.7%1.95M2.85
Apr 15, 20265.47M+712.4K+15.0%1.61M3.40
Mar 31, 20264.76M−358.3K−7.0%1.79M2.65
Mar 13, 20265.12M+191.9K+3.9%1.30M3.95
Feb 27, 20264.93M−419.7K−7.9%1.45M3.39
Feb 13, 20265.35M+1.73M+47.7%3.12M1.71
Jan 30, 20263.62M+428.9K+13.5%1.87M1.93
Jan 15, 20263.19M−118.5K−3.6%1.52M2.10
Dec 31, 20253.31M−651.2K−16.5%1.10M3.01
Dec 15, 20253.96M+263.1K+7.1%1.82M2.17
Nov 28, 20253.70M−42.3K−1.1%1.27M2.92
Nov 14, 20253.74M−119.6K−3.1%1.50M2.49
Oct 31, 20253.86M−427.9K−10.0%1.27M3.04
Oct 15, 20254.29M+688.5K+19.1%1.59M2.70
Sep 30, 20253.60M+216.7K+6.4%984.7K3.65
Sep 15, 20253.38M+434.7K+14.8%1.02M3.31
Aug 29, 20252.95M−350.7K−10.6%833.2K3.54
Aug 15, 20253.30M+478.8K+17.0%1.13M2.92
Jul 31, 20252.82M+402.3K+16.7%1.26M2.24
Jul 15, 20252.42M−583.4K−19.5%874.4K2.76
Jun 30, 20253.00M+94.7K+3.3%1.10M2.73
Jun 13, 20252.90M−317.9K−9.9%671.6K4.32
May 30, 20253.22M−10.0K−0.3%1.04M3.10
May 15, 20253.23M+49.0K+1.5%734.1K4.40
Apr 30, 20253.18M+415.4K+15.0%1.24M2.57
Apr 15, 20252.77M−525.2K−16.0%1.41M1.96
Mar 31, 20253.29M+533.6K+19.3%1.03M3.18
Mar 14, 20252.76M+323.1K+13.3%1.13M2.45
Feb 28, 20252.44M+39.7K+1.7%1.04M2.33
Feb 14, 20252.40M+236.7K+11.0%1.48M1.62
Jan 31, 20252.16M−377.2K−14.9%798.6K2.70
Jan 15, 20252.54M+151.2K+6.3%923.9K2.75
Dec 31, 20242.39M+169.6K+7.7%976.3K2.44
Dec 13, 20242.22M+146.2K+7.1%837.9K2.65
Nov 29, 20242.07M−199.1K−8.8%1.20M1.73
Nov 15, 20242.27M−211.4K−8.5%1.06M2.13
Oct 31, 20242.48M+288.9K+13.2%1.08M2.30

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 EFX by settlement date
Settlement dateSharesPriceValue
Sep 17, 202612,338$163.80$2.02M
Sep 16, 20265,300$167.08$885.5K
Sep 8, 20265,030$177.05$890.6K
Sep 4, 202617,776$189.09$3.36M
Sep 3, 202617,986$185.48$3.34M
Aug 24, 2026107$192.62$20.6K
Aug 11, 20269$181.04$1.63K
Aug 3, 2026233$172.62$40.2K
Jul 31, 202656$176.13$9.86K
Jul 14, 2026115$172.61$19.9K
Jun 30, 20262,946$158.57$467.1K
Jun 29, 20262,158$158.48$342.0K
Jun 25, 2026244$157.61$38.5K
Jun 24, 202655$152.53$8.39K
Jun 18, 2026495$154.84$76.6K
Jun 17, 20261,584$167.13$264.7K
Jun 12, 2026871$159.58$139.0K
Jun 8, 20261,534$172.13$264.0K
Jun 1, 202661,802$165.79$10.2M
May 13, 2026274$166.76$45.7K
May 5, 20264$172.24$688.96
Apr 23, 20261$178.66$178.66
Apr 9, 2026157$184.38$28.9K
Mar 25, 202612$169.50$2.03K
Mar 24, 20265,628$179.65$1.01M
Mar 23, 20266$178.02$1.07K
Mar 17, 20264,192$185.18$776.3K
Mar 10, 20261,082$204.61$221.4K
Mar 3, 2026945$208.03$196.6K
Feb 24, 2026161$188.43$30.3K

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 EFX by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 12, 2026209,8180299,67970.0%
Nov 11, 2026237,39810348,21568.2%
Nov 10, 2026254,14711529,55948.0%
Nov 9, 2026222,899480621,26635.9%
Nov 6, 2026184,17925387,41947.5%
Nov 5, 2026396,7780689,27157.6%
Nov 4, 2026240,8643678,24235.5%
Nov 3, 2026245,6754623,18039.4%
Nov 2, 2026380,747754786,16848.4%
Oct 30, 2026358,5460547,80565.5%
Oct 29, 2026391,2872,393668,23358.6%
Oct 28, 2026292,3980422,85269.1%
Oct 27, 2026418,129245616,52567.8%
Oct 26, 2026486,95294769,37563.3%
Oct 23, 2026345,0630657,41752.5%
Oct 22, 2026655,68001,282,04551.1%
Oct 21, 2026434,1016161,013,94042.8%
Oct 20, 20261,261,4226931,813,82869.5%
Oct 19, 2026477,9560782,16361.1%
Oct 16, 2026494,8630959,84951.6%
Oct 15, 2026478,8820810,98159.0%
Oct 14, 2026261,8036506,29051.7%
Oct 13, 2026235,600100449,21952.4%
Oct 12, 2026266,5960525,55850.7%
Oct 9, 2026218,434319458,33247.7%
Oct 8, 2026338,293759542,21162.4%
Oct 7, 2026259,7243,034538,38648.2%
Oct 6, 2026328,002992643,86850.9%
Oct 5, 2026420,455191,202,06335.0%
Oct 2, 2026596,9731201,331,96344.8%

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 EFX
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T14,588,03592,1781,545,49627,23874.8%
Oct 12, 2026T12,564,75962,004836,82020,73075.4%
Oct 5, 2026T12,582,20456,1631,351,54819,81165.6%
Sep 28, 2026T14,045,66374,6852,033,50125,38266.5%
Sep 21, 2026T13,362,28867,5631,348,86919,17371.4%
Sep 14, 2026T12,217,33757,9491,631,70417,08757.6%
Sep 7, 2026T11,941,05148,762480,92714,76780.1%
Aug 31, 2026T12,062,11251,269531,29215,89679.5%
Aug 24, 2026T11,501,30942,5651,051,47913,57958.8%
Aug 17, 2026T12,326,80453,142700,84914,09276.9%
Aug 10, 2026T11,237,50543,535846,16712,06759.4%
Aug 3, 2026T11,686,50249,9731,161,86315,21959.2%