$MIAX
Miami International Holdings, Inc.
XNYS•Financials•Security Brokers, Dealers & Flotation Companies
Why is MIAX up today? It is at $41.32 (+1.77%), and our scanner flagged it 55 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment MIAX spikes, and full due diligence on MIAX — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $41.32
- Change today
- +1.77%
- Previous close
- $40.60
- 52-week range
- $31.60 – $57.14
- Market cap
- $4.16B
- Institutional own.
- 74.26%
- Total held
- 90.2%
- Tradeable float
- 9.7M 10% of shares · after 16% insiders + 74% institutions
- Short interest
- 6.2M ▼ -18% vs prior · as of 2026-07-31
- Short % of float
- 63.9%
- Days to cover
- 5.4d
- Avg daily volume
- 1.2M
- Sector
- Financials
- Industry
- Security Brokers, Dealers & Flotation Companies
- Exchange
- XNYS
- 5m
- 1.7x
- 15m
- 1.9x
- 1h
- 0.9x
- 1D
- 0.2x
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Why is $MIAX up today?
MIAX is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 2 unusual-volume and momentum alerts on MIAX today, peaking at 10.7x its normal volume.
Analyst data via Nasdaq. Not investment advice.
Insiders
36 buys, 37 sells last 3 months (42/80 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Emmons Lance Officer | Sold (automatic/other) | -35K 0.04% of company | sold 29% | 87K | $1.5M at $42.83 | Aug 17, 26 |
Schwarzkopf Cynthia Director | Sold (automatic/other) | -5K | sold 5.3% | 89K | $214K at $42.85 | Aug 17, 26 |
Schwarzkopf Cynthia Director | Other | 5K | added 5.6% | 94K | $60K at $12.00 | Aug 17, 26 |
Gallagher Thomas P. Officer | Sold (automatic/other) | -48K 0.05% of company | sold 2.7% | 1.72M | $2.2M at $45.69 | Aug 4, 26 |
Gallagher Thomas P. Officer | Other | 48K 0.05% of company | added 2.8% | 1.77M | $580K at $12.00 | Aug 4, 26 |
Schafer Douglas M. Jr Officer | Sold (automatic/other) | -48K 0.05% of company | sold 11% | 387K | $2.2M at $45.71 | Aug 4, 26 |
Schafer Douglas M. Jr Officer | Other | 48K 0.05% of company | added 12% | 435K | $576K at $12.00 | Aug 4, 26 |
Deitzel Edward Officer | Sold (automatic/other) | -11K 0.01% of company | sold 8.4% | 120K | $504K at $45.78 | Aug 4, 26 |
Deitzel Edward Officer | Other | 11K 0.01% of company | added 9.2% | 131K | $132K at $12.00 | Aug 4, 26 |
Comly Barbara J. Officer | Sold (automatic/other) | -44K 0.04% of company | sold 4.8% | 883K | $2.0M at $45.69 | Aug 4, 26 |
Comly Barbara J. Officer | Other | 44K 0.04% of company | added 5.0% | 927K | $533K at $12.00 | Aug 4, 26 |
Jayabalan Harish Officer | Sold (automatic/other) | -20K 0.02% of company | sold 20% | 78K | $918K at $45.90 | Aug 4, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Dilution watch
Recent offeringRecent priced share offering — a one-time sale that has already completed (not ongoing). If $MIAX runs, these filings show who may be positioned to sell new or newly-registered shares into the move.
Sourced from SEC EDGAR filings (last 9 months); terms read straight from the filing text where available. Ongoing = an at-the-market (ATM) program still selling over time or a live shelf, so it can keep diluting; Completed = a one-time priced sale that already finished. A shelf (S-3) stays effective ~3 years. Form type signals dilution capacity, not an exact share count, and we can't confirm how much of a shelf or ATM remains unused. Not investment advice.
$MIAX Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$MIAX Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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MIAX stock FAQ
Why is $MIAX up today?
MIAX is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 2 unusual-volume and momentum alerts on MIAX today, peaking at 10.7x its normal volume.
What is the MIAX stock price today?
MIAX last traded at $41.32, up 1.77% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live MIAX alerts?
The MIAX Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged MIAX 55 times in the last 30 days.
What exchange is MIAX on?
MIAX (Miami International Holdings, Inc.) trades on XNYS, with a market cap of about $4.16B in the SECURITY BROKERS, DEALERS & FLOTATION COMPANIES sector.
Is MIAX good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge MIAX for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.