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Zions Bancorporation, National Association

ZION
Exchange
Nasdaq
Industry
National Commercial Banks
SEC CIK
0000109380

In the last 90 days, Zions Bancorporation, National Association insiders filed 0 open-market purchases and 1 sale; 604 institutions reported holding it in 13F filings for Q2 2026, worth $8.43B in total; no superinvestor holds it.

Other share classesZIONP

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
6.52M
Shares, settlement Oct 30, 2026
Change
−820.5K
−11.2% vs. Oct 15, 2026
Days to cover
3.78
Short interest ÷ average daily volume
Average daily volume
1.72M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 5,730,943 sharesNov 15, 2024: 5,714,598 sharesNov 29, 2024: 5,145,749 sharesDec 13, 2024: 5,467,415 sharesDec 31, 2024: 4,500,887 sharesJan 15, 2025: 3,916,245 sharesJan 31, 2025: 4,093,345 sharesFeb 14, 2025: 5,195,107 sharesFeb 28, 2025: 5,595,577 sharesMar 14, 2025: 5,803,246 sharesMar 31, 2025: 4,798,407 sharesApr 15, 2025: 4,265,689 sharesApr 30, 2025: 4,926,732 sharesMay 15, 2025: 5,725,483 sharesMay 30, 2025: 5,616,185 sharesJun 13, 2025: 5,474,755 sharesJun 30, 2025: 5,752,205 sharesJul 15, 2025: 5,863,995 sharesJul 31, 2025: 5,386,941 sharesAug 15, 2025: 6,172,098 sharesAug 29, 2025: 6,252,219 sharesSep 15, 2025: 6,676,069 sharesSep 30, 2025: 5,922,801 sharesOct 15, 2025: 6,964,820 sharesOct 31, 2025: 5,449,584 sharesNov 14, 2025: 6,381,888 sharesNov 28, 2025: 6,366,566 sharesDec 15, 2025: 6,665,111 sharesDec 31, 2025: 6,443,276 sharesJan 15, 2026: 6,403,392 sharesJan 30, 2026: 5,328,717 sharesFeb 13, 2026: 4,615,386 sharesFeb 27, 2026: 4,706,871 sharesMar 13, 2026: 5,057,583 sharesMar 31, 2026: 4,994,860 sharesApr 15, 2026: 4,527,249 sharesApr 30, 2026: 4,230,370 sharesMay 15, 2026: 4,822,300 sharesMay 29, 2026: 6,377,018 sharesJun 15, 2026: 6,879,346 sharesJun 30, 2026: 6,523,045 sharesJul 15, 2026: 7,005,706 sharesJul 31, 2026: 5,473,018 sharesAug 14, 2026: 5,486,180 sharesAug 31, 2026: 5,490,369 sharesSep 15, 2026: 5,960,172 sharesSep 30, 2026: 6,397,056 sharesOct 15, 2026: 7,340,695 sharesOct 30, 2026: 6,520,157 shares
Short interest in ZION by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20266.52M−820.5K−11.2%1.72M3.78
Oct 15, 20267.34M+943.6K+14.8%1.35M5.42
Sep 30, 20266.40M+436.9K+7.3%1.67M3.82
Sep 15, 20265.96M+469.8K+8.6%1.28M4.65
Aug 31, 20265.49M+4.19K+0.1%1.35M4.08
Aug 14, 20265.49M+13.2K+0.2%1.27M4.32
Jul 31, 20265.47M−1.53M−21.9%1.81M3.03
Jul 15, 20267.01M+482.7K+7.4%1.60M4.37
Jun 30, 20266.52M−356.3K−5.2%1.85M3.53
Jun 15, 20266.88M+502.3K+7.9%1.69M4.08
May 29, 20266.38M+1.55M+32.2%1.31M4.86
May 15, 20264.82M+591.9K+14.0%1.41M3.42
Apr 30, 20264.23M−296.9K−6.6%1.57M2.69
Apr 15, 20264.53M−467.6K−9.4%1.44M3.14
Mar 31, 20264.99M−62.7K−1.2%1.86M2.68
Mar 13, 20265.06M+350.7K+7.5%1.56M3.24
Feb 27, 20264.71M+91.5K+2.0%1.88M2.50
Feb 13, 20264.62M−713.3K−13.4%2.25M2.05
Jan 30, 20265.33M−1.07M−16.8%2.26M2.36
Jan 15, 20266.40M−39.9K−0.6%1.37M4.68
Dec 31, 20256.44M−221.8K−3.3%1.41M4.57
Dec 15, 20256.67M+298.5K+4.7%1.43M4.65
Nov 28, 20256.37M−15.3K−0.2%1.45M4.38
Nov 14, 20256.38M+932.3K+17.1%1.38M4.63
Oct 31, 20255.45M−1.52M−21.8%3.66M1.49
Oct 15, 20256.96M+1.04M+17.6%1.33M5.22
Sep 30, 20255.92M−753.3K−11.3%1.63M3.63
Sep 15, 20256.68M+423.9K+6.8%1.35M4.96
Aug 29, 20256.25M+80.1K+1.3%1.30M4.81
Aug 15, 20256.17M+785.2K+14.6%1.53M4.02
Jul 31, 20255.39M−477.1K−8.1%1.65M3.26
Jul 15, 20255.86M+111.8K+1.9%1.53M3.84
Jun 30, 20255.75M+277.4K+5.1%1.22M4.70
Jun 13, 20255.47M−141.4K−2.5%1.09M5.03
May 30, 20255.62M−109.3K−1.9%1.18M4.76
May 15, 20255.73M+798.8K+16.2%1.65M3.46
Apr 30, 20254.93M+661.0K+15.5%1.81M2.73
Apr 15, 20254.27M−532.7K−11.1%2.59M1.65
Mar 31, 20254.80M−1.00M−17.3%2.52M1.91
Mar 14, 20255.80M+207.7K+3.7%1.86M3.13
Feb 28, 20255.60M+400.5K+7.7%1.54M3.63
Feb 14, 20255.20M+1.10M+26.9%1.06M4.89
Jan 31, 20254.09M+177.1K+4.5%1.32M3.11
Jan 15, 20253.92M−584.6K−13.0%1.14M3.44
Dec 31, 20244.50M−966.5K−17.7%1.56M2.89
Dec 13, 20245.47M+321.7K+6.3%1.02M5.38
Nov 29, 20245.15M−568.8K−10.0%993.0K5.18
Nov 15, 20245.71M−16.3K−0.3%1.49M3.85
Oct 31, 20245.73M−276.7K−4.6%1.64M3.49

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 ZION by settlement date
Settlement dateSharesPriceValue
Oct 6, 20264,620$63.28$292.4K
Oct 5, 20264,620$63.17$291.8K
Oct 2, 20264,700$62.65$294.5K
Sep 24, 2026273$62.65$17.1K
Sep 23, 20264,134$63.65$263.1K
Sep 21, 20264,004$65.23$261.2K
Sep 18, 20263,490$65.70$229.3K
Sep 17, 2026243$65.47$15.9K
Sep 16, 2026311$67.99$21.1K
Sep 15, 2026361$69.18$25.0K
Sep 14, 2026358$68.75$24.6K
Sep 11, 2026181$68.29$12.4K
Sep 10, 202669$68.11$4.70K
Sep 3, 202641$68.02$2.79K
Sep 2, 202620,046$66.36$1.33M
Sep 1, 202644$66.69$2.93K
Aug 27, 20263$68.32$204.96
Aug 11, 202610,505$70.62$741.9K
Aug 6, 20261$71.70$71.7
Jul 31, 2026317$69.46$22.0K
Jul 27, 20261,422$69.29$98.5K
Jul 24, 2026717$69.16$49.6K
Jul 22, 20269$69.05$621.45
Jul 21, 20264,000$71.89$287.6K
Jul 20, 20264,009$72.27$289.7K
Jul 17, 2026571$73.31$41.9K
Jul 15, 2026281$70.42$19.8K
Jul 13, 2026265$70.66$18.7K
Jul 10, 2026111$70.02$7.77K
Jul 8, 202612,771$70.69$902.8K

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 ZION by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 12, 2026211,2150332,14763.6%
Nov 11, 2026301,66850435,77069.2%
Nov 10, 2026189,257476341,90055.4%
Nov 9, 2026259,94088446,28958.2%
Nov 6, 2026234,058351350,01766.9%
Nov 5, 2026490,44975728,36567.3%
Nov 4, 2026636,8754,885975,44865.3%
Nov 3, 2026651,1521,271876,36774.3%
Nov 2, 2026534,730225693,27777.1%
Oct 30, 2026318,12825438,55572.5%
Oct 29, 2026163,6620272,62060.0%
Oct 28, 2026365,0338525,94369.4%
Oct 27, 2026389,589280568,17168.6%
Oct 26, 2026472,73516604,88178.2%
Oct 23, 2026339,17863529,40664.1%
Oct 22, 2026367,32683734,91350.0%
Oct 21, 2026570,8321787,37872.5%
Oct 20, 2026997,06741,371,12772.7%
Oct 19, 2026429,1881,133674,23963.7%
Oct 16, 2026510,375292660,85877.2%
Oct 15, 2026514,609248772,11466.6%
Oct 14, 2026280,301153448,43262.5%
Oct 13, 2026288,1700411,27770.1%
Oct 12, 2026172,3270267,87564.3%
Oct 9, 2026242,956129372,47565.2%
Oct 8, 2026355,456275515,48869.0%
Oct 7, 2026258,116104434,68459.4%
Oct 6, 2026217,010100334,37464.9%
Oct 5, 2026231,9460430,46953.9%
Oct 2, 2026297,8900472,59163.0%

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 ZION
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T13,105,17669,0551,117,70813,66273.5%
Oct 12, 2026T11,880,79244,850941,0389,49166.7%
Oct 5, 2026T11,725,41444,1281,185,15610,17959.3%
Sep 28, 2026T12,188,97349,027876,67511,10971.4%
Sep 21, 2026T12,267,97646,303592,89710,57679.3%
Sep 14, 2026T12,769,62556,8561,901,90712,14059.3%
Sep 7, 2026T11,365,98936,762440,2446,59575.6%
Aug 31, 2026T11,585,55040,999760,6289,11267.6%
Aug 24, 2026T11,393,04434,862974,8987,50758.8%
Aug 17, 2026T11,811,95749,620978,9659,06664.9%
Aug 10, 2026T11,661,30842,937535,6629,38175.6%
Aug 3, 2026T12,033,06745,0551,640,66410,31555.3%