Stock fact sheet · data as of

Miami International Holdings, Inc. (MIAX): fair value, margin of safety and Wheel Score

Financial Services · Financial - Capital Markets · United States · High Growth

Close30.87
GLS fair value40.698 of 9 models
Margin of safety+24%price below fair value
Wheel Score81Primeout of 100
Health7/9Piotroski F-score
Moat4.1/10GLS 10-year score
Market cap$3.1B1.8M shares a day
Implied vol.55%near-the-money, 20-60 d
P/E20.7EPS 1.49
Dividend yieldnone
Beta1.56moves more than the market
Next earnings29 Oct 2026in 13 days (after the close)

Is MIAX undervalued?

At 30.87 (close of 16 Oct 2026), MIAX trades 24% under the GLS average fair value of 40.69. 3 of the 8 models that produced a value land above the price. A discount of this size counts as a positive margin of safety in every GLS screen; whether it is enough depends on the rest of the picture - the health score, the moat and the option premium below.

There is a wide gap between Lynch (6.29) and Payback Time (103.33). When the models are this far apart the "fair value" is really a range, and the margin of safety above should be read with that range in mind.

The nightly engine files MIAX under High Growth: revenue and earnings growing fast enough that the growth-based models carry the valuation.

Nine valuation models for MIAX

Each model turns the latest filed numbers into a value per share; the GLS fair value is the simple average of the ones that produce a positive number. The last two rows are shown for reference and never enter the average. The Quote page lets you switch any model off and add your own margin of safety.

ModelValuevs priceWhat it measures
DCF8.28-73%Present value of the projected free cash flows, discounted at the cost of capital
Graham Number20.14-35%The most a defensive investor pays for the earnings and book value per share
Graham Growth24.71-20%Graham's growth formula: EPS × (8.5 + 2 × growth), adjusted for bond yields
Lynch6.29-80%EPS × the earnings growth rate (PEG of 1), growth capped at 25%
GLS Growth91.41+196%EPS compounded ten years at the blended growth rate, discounted back at 15% a year
10 Cap54.79+77%Owner's earnings (operating cash flow less maintenance capex) capitalised at 10%
Payback Time103.33+235%Eight years of compounded free cash flow: the price at which the business pays for itself
DDM--Dividend discount model: next year's dividend ÷ (10% − 3% growth); needs a dividend; no value tonight
EPV16.59-46%Earnings power value: current EPS capitalised at 9% with no growth
Zombie (liquidation)3.66-88%Current assets less all liabilities, per share: the balance-sheet floor. Not in the average
Wall St target43.00+39%Analysts' average 12-month price target. Not in the average

Quality and financial health

Miami International Holdings, Inc. scores 7 of 9 on the Piotroski F-score, the nine yes/no tests of profitability, leverage and efficiency on the latest annual accounts - a strong reading that passes the Sunday Scan's "6 or more" rule with room to spare. A GLS Moat score of 4.1/10 is a weak reading: the ten-year history the score grades (revenue, EPS, book value, margins, cash flow, share count, ROIC) has not been steady, so the Moat part of the Wheel Score contributes little.

Returns on capital are thin or negative - ROIC -7.9%, ROE -7.9%, ROA -5.6% - with debt at 0.00 times equity and a free-cash-flow yield of 8.1%.

Miami International Holdings, Inc. pays no dividend, so the DDM model does not apply and a covered-call holder earns only the premium and any price gain. Revenue comes mainly from Transaction And Clearing Fees 86%, Access Fees 9%, Market Data Fees 3% (quarter Q2 FY2026).

Institutional ownership scores 10/10, insider activity 2/10 and Congressional trading 5/10 on the GLS smart-money scales.

Piotroski F-score7 / 9ROIC-7.9%
GLS Moat4.1 / 10ROE-7.9%
Debt / equity0.00ROA-5.6%
Free-cash-flow yield8.1%Payout ratio0%
Institutions10 / 10Insiders · Congress2 · 5 / 10

Wheel Score 81: Prime

With a Wheel Score of 81, Miami International Holdings, Inc. sits in the Prime band - price, quality and premium all line up for the wheel strategy. The parts: Value 23/25, Health 16/20, Moat 6/15, Premium 20/20, Stability 16/20. A high score is a ranking, not a signal: it says nothing about timing, the earnings date or your position size.

Implied volatility is 55% on the near-the-money contracts 20-60 days out - inside the 35-60% range the Wheel Score pays full marks for: enough premium to be worth selling, not so much that the risk is unpaid. Chain open interest is 18,661 contracts across all expiries - enough for the wheel at normal size.

Volume runs at 1.8M shares a day on a market cap of $3.1B, with a beta of 1.56 - a high beta, so the stock tends to move more than the market and a strike can be gapped through; the Stability part of the Wheel Score gives that 16 of 20.

PartPointsFrom
Value23 / 2524% margin of safety
Health16 / 20Piotroski 7/9
Moat6 / 15moat 4.1/10
Premium20 / 20implied volatility 55%
Stability16 / 201.8M shares/day, $3.1B cap, beta 1.56

The Wheel Score ranks ~7,400 US stocks for selling cash-secured puts and covered calls; it is updated nightly and is not a recommendation. The walkthrough lesson shows how the score fits into a trade, start to finish.

Upcoming events

Miami International Holdings, Inc. reports earnings on 29 Oct 2026 (after the close) - inside the 14-day window the Sunday Scan avoids, because a put sold now would carry the report's gap risk.

Earnings, dividend, IPO, split and economic calendars for the whole market, filterable to your watchlists.

Similar stocks in Financial - Capital Markets

The 12 companies below are the closest to Miami International Holdings, Inc. by market cap within the Financial - Capital Markets industry, each with its own fact sheet; the Compare page puts up to eight of them side by side.

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LAZ
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MC
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ETOR
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SFB
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FIGR
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MRX
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BGC
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RIOT
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WULF
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⚖ Compare MIAX with 7 of them   All Financial Services stocks →

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Questions about MIAX

Is MIAX undervalued right now?

By the GLS models, moderately: at 30.87 the stock trades 24% below the average fair value of 40.69 (data as of 16 Oct 2026).

What is the Wheel Score of MIAX and what does it mean?

MIAX scores 81 out of 100 (Prime). The Wheel Score blends the margin of safety (25 points), Piotroski health (20), the GLS moat (15), the option premium on offer (20) and trading stability (20) into one number that ranks stocks for the wheel strategy - selling cash-secured puts, then covered calls if assigned. 80 and above is Prime, 65-79 Good, 50-64 Fair, under 50 Weak.

What is the GLS fair value for MIAX?

40.69 per share as of 16 Oct 2026 - the simple average of the 8 valuation models (out of nine: DCF, Graham Number, Graham Growth, Lynch, GLS Growth, 10 Cap, Payback Time, DDM and EPV) that produced a positive value. The models run every night on the latest filings; the Quote page lets you switch any of them off and add a margin of safety of your own.

When does Miami International Holdings, Inc. report earnings next?

The next earnings report is due on 29 Oct 2026 (after the close), 13 days from the data date of 16 Oct 2026. The Calendars page lists every upcoming report with its time of day.

Does MIAX have listed options, and how liquid are they?

Yes. The nightly snapshot found 186 listed contracts with 18,661 open interest across all expiries and implied volatility of 55% on the near-the-money contracts. The Options scanner lists the cash-secured put and covered call set-ups with premium and annualised yield worked out.

Data as of 16 Oct 2026: prices and fundamentals from Financial Modeling Prep, option data from Polygon; valuations, scores and the Wheel Score by GLS Equity's models, run nightly. Prices in USD; the close shown is the previous session's. Everything on this page is general information produced by automated models from third-party data - not a recommendation to buy, sell or trade any security or option, and not financial advice. Past performance is not indicative of future results. GLS Equity provides data and tools, not financial advice.