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Miami International Holdings, Inc. short interest

8.0M shares of Miami International Holdings were sold short at the 15 October 2026 settlement, near the top of its range over the last year (1.3M to 8.9M). Short sellers would need 3.7 days of normal trading to buy them back.

Shares sold short8.0Mat 15 Oct 2026
Change on the settlement before-10.3%+473% over a year
Days to cover3.66at 2.2M shares a day
Of shares in issue8.08%shares short over shares outstanding
New to this? How to read this page
  1. Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back.
  2. Days to cover is shares short over an average day's trading: how many days it would take short sellers to buy them all back. Above 5 or so is high.
  3. Rising short interest says more investors are betting against the stock. A crowded short can also rise fast if shorts rush to buy back.
  4. Brokers report it twice a month to FINRA, about ten days after each settlement date.
  5. What is short interest?

Short interest, days to cover and the price

Short interest is near the top of its range over the last year (1.3M to 8.9M), and the share price moved -25% over the last year.

Shares sold shortDays to coverShare price

Three charts on one timeline. Top: shares sold short at each settlement. Middle: days to cover, taller meaning shorts would need longer to buy back. Bottom: the share price, so you can see whether shorts added as the price fell or rose.

How it compares

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    Every settlement since 15 Aug 2025 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20268.0M-10.3%2.2M3.66
    30 September 20268.9M+29.8%1.9M4.64
    15 September 20266.8M+0.8%1.4M4.98
    31 August 20266.8M-8.2%1.2M5.64
    14 August 20267.4M+18.7%1.4M5.41
    31 July 20266.2M-17.8%1.2M5.38
    15 July 20267.6M-0.2%1.7M4.46
    30 June 20267.6M+57.1%3.8M1.98
    15 June 20264.8M+6.7%2.2M2.20
    29 May 20264.5M+28.2%1.2M3.83
    15 May 20263.5M+49.9%1.5M2.40
    30 April 20262.4M+4.8%837K2.81
    15 April 20262.2M-33.8%1.4M1.62
    31 March 20263.4M+34.7%1.3M2.57
    13 March 20262.5M+16.2%1.4M1.78
    27 February 20262.2M-18.0%2.1M1.01
    13 February 20262.6M-6.1%1.4M1.86
    30 January 20262.8M+18.4%771K3.65
    15 January 20262.4M-40.5%1.1M2.25
    31 December 20254.0M+99.1%1.3M3.15
    15 December 20252.0M+50.5%916K2.19
    28 November 20251.3M-28.7%534K2.50
    14 November 20251.9M+46.6%599K3.12
    31 October 20251.3M-8.1%322K3.96
    15 October 20251.4M-42.4%684K2.03
    30 September 20252.4M+19.0%797K3.03
    15 September 20252.0M+31.7%597K3.39
    29 August 20251.5M+104.8%1.4M1.11
    15 August 2025751K1.9M1.00
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.