SecBot SecBot

MIAX

MIAMI INTERNATIONAL HOLDINGS, INC.
NYSE· Security Brokers, Dealers & Flotation Companies· Inc. DE· CIK 0001438472 Traditional Finance
$33.39 −0.59 (−1.74%)
Oct 26 4:00 PM ET · prev $33.98
Market cap
$3.5B
Mid cap
Consensus
Buy
62% Buy or better · 13 analysts
Median target
$43.00
+29% · range $35.00–62.00
Next earnings
Oct 29
in 3 days
1 year
−24.6%
from $44.27 · Oct 27
30 days
−1.5%
from $33.91
52-week range
$29.55–56.84
−41% from high · low Oct 13
Avg volume 20D
1.81M
Oct 6 spike 4.75M
Short interest
8.88M
≈8.9% of shares · +29.8%
Days to cover
4.6
at average volume
Insider net
−$30.2M
0 buyers · 10 sellers · since Jul 6
New fund stakes
4
Q2 2026 13F · 4 exits
SecBot read BEARISH 6 reports · 90 days
Balance 2 bearish · 0 bullish · 1 mixed · 3 neutral oldest → newest, height = score
Avg score ·High conf. 2/6 ·Next Earnings date, Oct 29, 2026
Strongest MIXED A cluster of insider sales at Miami International Holdings includes the Chairman & CEO and CFO liquidating…
All reports →

Price

Daily candles with volume. Pins mark insider trades, rating changes, 13F stakes, reports, catalysts and short-interest jumps.

  • I Jun 30 4 funds open new positions (13F)
  • S Jul 7 to Jul 15 3 days of insider sells: $5.6M by 3 insiders, avg $42.33
  • R Aug 6 CEO Thomas Gallagher, EVP/CRO Deitzel, EVP/GC Comly, EVP/CIO Schafer…
  • S Aug 17 to Aug 19 2 days of insider sells: $7.9M by 3 insiders, avg $41.49
  • A Sep 1 Morgan Stanley downgrades
  • S Sep 2 to Sep 3 2 days of insider sells: $6.6M by 5 insiders, avg $41.23
  • X Sep 30 Short interest jumps 29.8% to 8.88M
  • S Oct 2 1 insider sell $1.3M at $33.34

Signal stack

Where each data set points today.

  • InsidersBEARISH

    10 insiders sold $30.2M.

  • InstitutionsBULLISH

    Q2 2026: 44 added (4 new), 19 trimmed or exited. Largest new: Balyasny Asset Management $62.5M, Westfield Capital Management $26.0M.

  • AnalystsBULLISH

    8 of 13 rate it Buy or better. Every target is above the price.

  • Short sellersBUILDING

    Short interest +29.8% to 8.88M shares. 4.6 days to cover, ≈8.9% of shares.

  • TrendDOWNTREND

    10% below its 50-day average.

Who's buying

13F· Q2 2026
4
new positions
4
exits
$113.0M
in new stakes
FundMoveSharesValue
BlackRock, Inc.DOUBLED5,071,754$188.5M
VANGUARD PORTFOLIO MANAGEMENT LLCDOUBLED3,786,418$140.7M
VANGUARD CAPITAL MANAGEMENT LLCDOUBLED3,165,686$117.6M
BLAIR WILLIAM & CO/ILDOUBLED1,769,432$65.8M
BALYASNY ASSET MANAGEMENT L.P.NEW1,682,924$62.5M
AMERICAN CENTURY COMPANIES INCADD1,587,196$59.0M
STATE STREET CORPDOUBLED1,432,894$53.2M
GEODE CAPITAL MANAGEMENT, LLCADD1,395,680$51.9M

Quarterly 13F filings are due 45 days after each quarter ends.

The Street

13 analysts
Buy 62% rate it Buy or better
Strong Buy3Buy5Hold5Sell0Strong Sell0
12-month targets · 5 analysts

Price is below the lowest target. Median implies +29%.Targets as of Oct 26, 2026.

Recent actions
DateFirmActionRating
Oct 9, 2026Morgan Stanley
MAINTAIN
MAINTAINEqual-Weight
Oct 2, 2026Rosenblatt
MAINTAIN
MAINTAINBuy
Sep 1, 2026Morgan Stanley
DOWNGRADE
DOWNGRADEEqual-Weight
Aug 7, 2026Keefe, Bruyette & Woods
MAINTAIN
MAINTAINMarket Perform
Aug 6, 2026Rosenblatt
MAINTAIN
MAINTAINBuy
Jul 10, 2026Morgan Stanley
MAINTAIN
MAINTAINOverweight

Insider ledger

Form 4
$0
bought · 0 insiders
$30.2M
sold · 10 insiders
DateInsiderTypeValue
Oct 2, 2026
Schafer Douglas M. JR
EVP and CIO
EXERCISE$480.0K
Oct 2, 2026
Schafer Douglas M. JR
EVP and CIO
SELL$1.3M
Sep 25, 2026
Jayabalan Harish
EVP, CISO and CRO
EXERCISE$100.0K
Sep 16, 2026
Brown Shelly
EVP, Chief Strategy Officer
SELL$819.2K
Sep 11, 2026
Brown Shelly
EVP, Chief Strategy Officer
TAX W/H$692.7K
Sep 3, 2026
Gallagher Thomas P.
Chairman & CEO
EXERCISE$100.0K
Sep 3, 2026
Deitzel Edward
EVP, CRO, CCO MIAX Exchanges
EXERCISE$132.0K
Sep 3, 2026
Gallagher Thomas P.
Chairman & CEO
EXERCISE$200.0K

Earnings setup

Estimates
Oct 29
reports in 3 days

Revision history: 🔒 Fresh data, subscribers only

PeriodEPS est.Range30D rev.Revenue
Current Q🔒 Fresh data, subscribers only
Next Q🔒 Fresh data, subscribers only
Current FY🔒 Fresh data, subscribers only
Next FY🔒 Fresh data, subscribers only

Short side

FINRA· Sep 30, 2026
8,880,720
shares short
+29.8%
vs prior settlement
4.6
days to cover
≈8.9%
of shares outstanding
Recent activity
The latest filings, insider trades, analyst actions, press and options flow — newest first.
Oct 21, 2026 Other
MIAX Launches Physically-settled Fertilizer Futures on MIAX Futures
MIAMI and PRINCETON, N.J., Oct. 21, 2026 /PRNewswire/ -- Miami International Holdings, Inc. (MIAX®)
Oct 2, 2026 Insider
Schafer Douglas M. JR acquired via exercise 40,000 shares
EVP and CIO @ $12.00 ($480.0K)
Oct 2, 2026 Insider
Schafer Douglas M. JR sold 40,000 shares
EVP and CIO @ $33.34 ($1.3M)
Oct 1, 2026 SEC
MIAX announced it will report its Q3 2026 results on October 29, 2026.
PRESS-RELEASE — Impact 1/10
Sep 25, 2026 Insider
Jayabalan Harish acquired via exercise 8,333 shares
EVP, CISO and CRO @ $12.00 ($100.0K)
Sep 4, 2026 SEC
A cluster of insider selling at MIAX totaling $4.17M over a 7-day window, led by Chairman & CEO Thomas P. Gallagher…
CLUSTER — Impact 3/10
Sep 4, 2026 SEC
Two insiders at MIAX (Director Teekell Judson Gray and EVP/CIO Schafer Douglas M. Jr.) sold a combined $2.17M in…
CLUSTER — Impact 2/10
Jun 30, 2026 Inst.
BlackRock, Inc. — DOUBLED
5,071,754 shares ($188.5M)
Catalysts
Scheduled dates and disclosed events: earnings, FDA and trial readouts, halts, press releases. Colored dot = impact.
Upcoming
Oct 29, 2026
Earnings date
MIAX Q3 2026 Earnings After Market Close — 2026-10-29
Recent
Oct 21, 2026
Press release
MIAX Launches Physically-settled Fertilizer Futures on MIAX Futures
MIAMI and PRINCETON, N.J., Oct. 21, 2026 /PRNewswire/ -- Miami International Holdings, Inc. (MIAX®) (NYSE: MIAX), a technology-driven leader in…
Oct 15, 2026
Press release
MIAX Announces Bloomberg Equity Index Futures Now Available on NinjaTrader
Tini B500 Index Futures and Tini B100 Index Futures available for NinjaTrader customers PRINCETON, N.J. and MIAMI, Oct. 15, 2026 /PRNewswire/…
Oct 6, 2026
Press release
Miami International Holdings Reports September 2026 Trading Results
MIAX Exchange Group reports 22.0% increase in multi-list options ADV YTD PRINCETON, N.J. and MIAMI, Oct. 6, 2026 /PRNewswire/ -- Miami International…
Oct 1, 2026
Earnings
Miami International Holdings Announces Date of Third Quarter 2026 Earnings Release and Conference Call
PRINCETON, N.J. and MIAMI, Oct. 1, 2026 /PRNewswire/ -- Miami International Holdings, Inc. (NYSE: MIAX), a technology-driven leader in building and…
Sep 30, 2026
Short interest
Short Interest: MIAX up 30% to 8.9M shares
Settlement 2026-09-30 | Days to cover: 4.64 | ≈8.95% of shares outstanding (est.)

SecBot reports

41 filings · 2 bullish · 7 bearish · 3 mixed · 29 neutral
All MIAX filing & press-release reports (41)