MGIC Investment (MTG) Options Chain

NYSE: MTGFinanceProperty-Casualty InsurersUSD

27.43-0.44 (-1.58%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $27.43
Put/call ratio (OI): 0.48
Put/call ratio (volume): 0.05
ATM implied volatility: 45.7%
Expected move: ±$5.41
Open interest (C / P): 2.82K / 1.35K

MTG options summary

The MTG options chain for the December 18, 2026 expiration lists 4 call and 6 put contracts, with 68 days until expiration. Open interest stands at 2,816 calls and 1,351 puts, a put/call ratio of 0.48, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $25.00 strike is 45.7%, which implies the market expects a move of about ±$5.41 (19.7%) in MGIC Investment stock by expiration.

The most open interest sits at the $30.00 call (2.38K contracts) and the $25.00 put (1.23K contracts).

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

MTG options chain · December 18, 2026

MTG 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
0	—	—	9.26	0.00	0.00	17.50	0.00	0.15	0.05	57.0%	—	21
—	—	—	—	—	—	20.00	0.05	0.25	0.15	55.5%	1	4
—	—	—	—	—	—	22.50	0.00	2.45	0.75	71.7%	2	16
186	205	52.7%	2.10	2.80	3.80	25.00	0.55	0.80	0.57	38.6%	2	1,231
MTG $27.43
2,380	1	33.8%	0.46	0.40	0.70	30.00	2.30	3.40	3.39	36.9%	5	79
250	12	40.1%	0.17	0.05	0.20	35.00	0.00	0.00	8.87	—	—	0

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 MTG put/call ratio?

For the December 18, 2026 expiration, the MTG put/call ratio based on open interest is 0.48 (1,351 puts vs 2,816 calls), and 0.05 based on today's volume. A ratio above 1 means more puts than calls.

What is MTG's implied volatility?

At-the-money implied volatility for MTG options expiring December 18, 2026 is about 45.7%, an annualized estimate of how much the market expects MGIC Investment stock to move.

How many MTG option expiration dates are there?

MTG has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 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.