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Malibu Boats, Inc.

MBUU
Exchange
Nasdaq
Industry
Ship & Boat Building & Repairing
SEC CIK
0001590976

No open-market purchases or sales by Malibu Boats, Inc. insiders were filed in the last 90 days; 141 institutions reported holding it in 13F filings for Q2 2026, worth $494.0M 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
1.33M
Shares, settlement Oct 30, 2026
Change
−21.7K
−1.6% vs. Oct 15, 2026
Days to cover
5.96
Short interest ÷ average daily volume
Average daily volume
223.0K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 1,696,791 sharesNov 15, 2024: 1,528,154 sharesNov 29, 2024: 1,592,820 sharesDec 13, 2024: 1,610,155 sharesDec 31, 2024: 1,410,007 sharesJan 15, 2025: 1,314,073 sharesJan 31, 2025: 1,279,762 sharesFeb 14, 2025: 1,348,067 sharesFeb 28, 2025: 1,357,245 sharesMar 14, 2025: 1,405,299 sharesMar 31, 2025: 1,294,246 sharesApr 15, 2025: 1,405,077 sharesApr 30, 2025: 1,520,864 sharesMay 15, 2025: 1,463,063 sharesMay 30, 2025: 1,491,958 sharesJun 13, 2025: 1,473,913 sharesJun 30, 2025: 1,425,617 sharesJul 15, 2025: 1,409,036 sharesJul 31, 2025: 1,393,442 sharesAug 15, 2025: 1,457,515 sharesAug 29, 2025: 1,500,086 sharesSep 15, 2025: 1,265,535 sharesSep 30, 2025: 1,272,492 sharesOct 15, 2025: 1,238,234 sharesOct 31, 2025: 1,165,932 sharesNov 14, 2025: 1,109,243 sharesNov 28, 2025: 1,112,677 sharesDec 15, 2025: 1,136,647 sharesDec 31, 2025: 1,192,341 sharesJan 15, 2026: 1,300,241 sharesJan 30, 2026: 1,361,932 sharesFeb 13, 2026: 1,413,552 sharesFeb 27, 2026: 1,465,137 sharesMar 13, 2026: 1,525,288 sharesMar 31, 2026: 1,570,888 sharesApr 15, 2026: 1,401,078 sharesApr 30, 2026: 1,340,320 sharesMay 15, 2026: 1,227,046 sharesMay 29, 2026: 1,326,636 sharesJun 15, 2026: 1,360,109 sharesJun 30, 2026: 1,353,861 sharesJul 15, 2026: 1,381,737 sharesJul 31, 2026: 1,340,975 sharesAug 14, 2026: 1,361,721 sharesAug 31, 2026: 1,409,767 sharesSep 15, 2026: 1,437,218 sharesSep 30, 2026: 1,270,459 sharesOct 15, 2026: 1,351,549 sharesOct 30, 2026: 1,329,857 shares
Short interest in MBUU by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20261.33M−21.7K−1.6%223.0K5.96
Oct 15, 20261.35M+81.1K+6.4%235.9K5.73
Sep 30, 20261.27M−166.8K−11.6%224.9K5.65
Sep 15, 20261.44M+27.5K+2.0%263.3K5.46
Aug 31, 20261.41M+48.0K+3.5%259.1K5.44
Aug 14, 20261.36M+20.7K+1.6%172.6K7.89
Jul 31, 20261.34M−40.8K−3.0%177.5K7.56
Jul 15, 20261.38M+27.9K+2.1%289.9K4.77
Jun 30, 20261.35M−6.25K−0.5%360.2K3.76
Jun 15, 20261.36M+33.5K+2.5%260.4K5.22
May 29, 20261.33M+99.6K+8.1%335.7K3.95
May 15, 20261.23M−113.3K−8.5%425.5K2.88
Apr 30, 20261.34M−60.8K−4.3%442.0K3.03
Apr 15, 20261.40M−169.8K−10.8%323.6K4.33
Mar 31, 20261.57M+45.6K+3.0%290.8K5.40
Mar 13, 20261.53M+60.2K+4.1%404.7K3.77
Feb 27, 20261.47M+51.6K+3.7%168.1K8.72
Feb 13, 20261.41M+51.6K+3.8%268.8K5.26
Jan 30, 20261.36M+61.7K+4.7%155.7K8.75
Jan 15, 20261.30M+107.9K+9.1%188.3K6.90
Dec 31, 20251.19M+55.7K+4.9%174.7K6.82
Dec 15, 20251.14M+24.0K+2.2%253.0K4.49
Nov 28, 20251.11M+3.43K+0.3%286.2K3.89
Nov 14, 20251.11M−56.7K−4.9%245.6K4.52
Oct 31, 20251.17M−72.3K−5.8%188.1K6.20
Oct 15, 20251.24M−34.3K−2.7%158.1K7.83
Sep 30, 20251.27M+6.96K+0.6%222.7K5.71
Sep 15, 20251.27M−234.6K−15.6%210.3K6.02
Aug 29, 20251.50M+42.6K+2.9%254.1K5.90
Aug 15, 20251.46M+64.1K+4.6%116.8K12.48
Jul 31, 20251.39M−15.6K−1.1%136.8K10.18
Jul 15, 20251.41M−16.6K−1.2%126.2K11.17
Jun 30, 20251.43M−48.3K−3.3%137.0K10.41
Jun 13, 20251.47M−18.0K−1.2%150.8K9.77
May 30, 20251.49M+28.9K+2.0%123.5K12.08
May 15, 20251.46M−57.8K−3.8%216.5K6.76
Apr 30, 20251.52M+115.8K+8.2%200.7K7.58
Apr 15, 20251.41M+110.8K+8.6%315.6K4.45
Mar 31, 20251.29M−111.1K−7.9%177.4K7.30
Mar 14, 20251.41M+48.1K+3.5%171.1K8.21
Feb 28, 20251.36M+9.18K+0.7%158.3K8.58
Feb 14, 20251.35M+68.3K+5.3%181.6K7.42
Jan 31, 20251.28M−34.3K−2.6%204.9K6.25
Jan 15, 20251.31M−95.9K−6.8%133.1K9.87
Dec 31, 20241.41M−200.1K−12.4%164.7K8.56
Dec 13, 20241.61M+17.3K+1.1%143.2K11.24
Nov 29, 20241.59M+64.7K+4.2%169.1K9.42
Nov 15, 20241.53M−168.6K−9.9%233.2K6.55
Oct 31, 20241.70M+18.3K+1.1%200.6K8.46

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 MBUU by settlement date
Settlement dateSharesPriceValue
Oct 1, 202619$22.92$435.48
Sep 29, 2026353$23.13$8.16K
Sep 21, 2026100$23.27$2.33K
Sep 18, 202637$23.63$874.31
Sep 15, 202616$24.52$392.32
Sep 10, 20262$25.86$51.72
Sep 4, 20261,773$26.68$47.3K
Aug 19, 20269$29.33$263.97
Aug 17, 2026188$29.33$5.51K
Aug 13, 2026319$29.34$9.36K
Aug 5, 20267$29.24$204.68
Jul 31, 2026141$28.00$3.95K
Jul 14, 2026423$26.77$11.3K
Jul 7, 20263,285$25.86$85.0K
Jun 29, 2026343$28.75$9.86K
Jun 18, 2026978$26.95$26.4K
Jun 17, 2026380$28.03$10.7K
Jun 15, 2026684$27.88$19.1K
May 13, 20261,243$28.10$34.9K
May 12, 20261,235$29.66$36.6K
May 11, 20261,173$30.09$35.3K
May 7, 202610$25.70$257
May 4, 202638$25.71$976.98
May 1, 202635$25.60$896
Apr 30, 202646$25.22$1.16K
Apr 27, 2026132$26.10$3.45K
Apr 17, 2026985$24.73$24.4K
Apr 15, 2026113$26.43$2.99K
Apr 10, 202612$25.35$304.2
Apr 8, 20261,794$24.15$43.3K

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 MBUU by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 12, 2026124,9070162,95576.7%
Nov 11, 2026136,7540166,85082.0%
Nov 10, 2026182,2110238,14276.5%
Nov 9, 202693,0520160,61557.9%
Nov 6, 2026177,2941,494240,46773.7%
Nov 5, 2026228,76612,348351,72765.0%
Nov 4, 202665,9650336,60919.6%
Nov 3, 202624,470060,96740.1%
Nov 2, 202663,3190133,09447.6%
Oct 30, 202647,9650122,20039.3%
Oct 29, 202628,4710103,34527.5%
Oct 28, 202633,114068,05348.7%
Oct 27, 202628,620095,85929.9%
Oct 26, 202637,684081,30446.3%
Oct 23, 202634,634066,97951.7%
Oct 22, 202641,8380162,39225.8%
Oct 21, 202632,123081,00039.7%
Oct 20, 202626,924063,84042.2%
Oct 19, 202634,925082,85442.2%
Oct 16, 202629,347047,64861.6%
Oct 15, 202660,1530123,98248.5%
Oct 14, 202638,707067,68357.2%
Oct 13, 202636,215080,08645.2%
Oct 12, 202629,475054,70853.9%
Oct 9, 202649,401069,65870.9%
Oct 8, 202652,208085,40661.1%
Oct 7, 202636,129056,70563.7%
Oct 6, 202645,719091,31450.1%
Oct 5, 202659,291087,96767.4%
Oct 2, 202631,672059,01453.7%

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 MBUU
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2278,63312,691176,5752,56261.2%
Sep 28, 2026T2215,1909,966193,7252,37652.6%
Sep 21, 2026T2313,08112,126184,9582,15962.9%
Sep 14, 2026T2294,91215,330294,1222,40650.1%
Sep 7, 2026T2310,61414,328174,0792,08764.1%
Aug 31, 2026T2297,98616,889266,8913,55152.8%
Aug 24, 2026T2496,47816,572272,1912,63564.6%
Aug 17, 2026T2193,08613,16950,4461,68779.3%
Aug 10, 2026T2226,91514,54572,5081,92975.8%
Aug 3, 2026T2275,6539,55386,1741,65976.2%
Jul 27, 2026T2278,70110,40763,7061,85381.4%
Jul 20, 2026T2195,48811,472138,3411,95658.6%