Miami International (MIAX) Options Chain

NYSE: MIAXFinanceInvestment Bankers/Brokers/ServiceUSD

30.71+0.01 (+0.03%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Dec 17, 2027
Days to expiration: 432
Share price: $30.71
Put/call ratio (OI): 0.69
Put/call ratio (volume): 0.64
ATM implied volatility: 51.2%
Expected move: ±$17.12
Open interest (C / P): 42 / 29

MIAX options summary

The MIAX options chain for the December 17, 2027 expiration lists 11 call and 6 put contracts, with 432 days until expiration. Open interest stands at 42 calls and 29 puts, a put/call ratio of 0.69, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $30.00 strike is 51.2%, which implies the market expects a move of about ±$17.12 (55.7%) in Miami International stock by expiration.

The most open interest sits at the $45.00 call (11 contracts) and the $30.00 put (16 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

MIAX options chain · December 17, 2027

MIAX calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
2	1	57.8%	14.31	13.20	16.10	17.50	—	—	—	—	—	—
2	1	62.1%	12.42	12.30	14.30	20.00	—	—	—	—	—	—
2	1	55.4%	18.70	9.70	12.70	22.50	0.65	3.60	1.35	61.7%	1	1
6	5	57.5%	10.00	8.90	11.20	25.00	1.55	4.20	3.47	56.2%	1	3
2	—	54.5%	10.10	6.30	8.60	30.00	3.80	5.90	4.69	47.9%	2	16
MIAX $30.71
8	2	61.3%	7.69	3.30	6.60	35.00	—	—	—	—	—	—
2	1	52.0%	10.43	3.10	5.00	40.00	0.00	0.00	6.50	—	—	0
11	1	53.8%	3.47	2.35	3.30	45.00	13.30	16.60	9.56	45.7%	—	4
4	1	52.5%	2.85	1.10	3.70	50.00	9.90	13.70	14.12	—	5	5
1	1	52.1%	2.45	0.20	3.40	55.00	—	—	—	—	—	—
2	—	54.7%	1.10	0.05	3.20	60.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the MIAX put/call ratio?

For the December 17, 2027 expiration, the MIAX put/call ratio based on open interest is 0.69 (29 puts vs 42 calls), and 0.64 based on today's volume. A ratio above 1 means more puts than calls.

What is MIAX's implied volatility?

At-the-money implied volatility for MIAX options expiring December 17, 2027 is about 51.2%, an annualized estimate of how much the market expects Miami International stock to move.

How many MIAX option expiration dates are there?

MIAX has 7 listed expiration dates, from Oct 16, 2026 to Dec 17, 2027.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.