CarMax (KMX) Options Chain

NYSE: KMXConsumer DiscretionaryRetail-Auto Dealers and Gas StationsUSD

52.61-1.18 (-2.19%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $52.61
Put/call ratio (OI): 2.73
Put/call ratio (volume): 0.95
ATM implied volatility: 51.4%
Expected move: ±$11.67
Open interest (C / P): 401 / 1.10K

KMX options summary

The KMX options chain for the December 18, 2026 expiration lists 13 call and 16 put contracts, with 68 days until expiration. Open interest stands at 401 calls and 1,096 puts, a put/call ratio of 2.73, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $52.50 strike is 51.4%, which implies the market expects a move of about ±$11.67 (22.2%) in CarMax stock by expiration.

The most open interest sits at the $70.00 call (121 contracts) and the $45.00 put (286 contracts).

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

KMX options chain · December 18, 2026

KMX 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
—	—	—	—	—	—	32.50	0.05	0.25	0.15	61.0%	—	5
—	—	—	—	—	—	35.00	0.15	0.35	0.20	58.5%	1	18
—	—	—	—	—	—	37.50	0.30	0.45	0.30	55.0%	69	72
—	—	—	—	—	—	40.00	0.45	0.85	0.57	54.1%	1	9
—	—	—	—	—	—	42.50	0.75	1.00	0.65	52.3%	5	67
—	—	—	—	—	—	45.00	1.20	1.55	1.35	51.4%	1	286
—	—	—	—	—	—	47.50	1.75	2.35	1.85	51.4%	4	107
15	5	53.9%	8.25	5.80	6.60	50.00	2.80	3.20	2.90	49.3%	1	78
1	—	54.9%	6.20	4.50	5.60	52.50	3.80	4.30	4.20	47.9%	11	61
KMX $52.61
7	3	51.0%	3.80	3.40	3.90	55.00	5.30	5.70	5.17	47.3%	1	36
17	2	50.7%	3.14	2.45	3.10	57.50	6.90	7.30	6.98	46.5%	10	85
15	3	50.4%	2.18	1.85	2.30	60.00	7.60	9.20	8.70	47.1%	3	243
20	1	53.9%	2.48	0.85	1.80	62.50	9.60	11.10	6.90	45.7%	—	16
90	1	53.7%	1.50	0.30	1.35	65.00	12.50	13.60	7.50	51.6%	3	8
56	1	56.0%	1.25	0.25	1.15	67.50	14.00	16.00	9.10	55.4%	3	4
121	100	52.6%	1.11	0.35	1.05	70.00	16.30	18.10	11.10	52.8%	—	1
21	1	50.2%	1.08	0.05	0.55	75.00	—	—	—	—	—	—
28	1	55.1%	0.80	0.15	0.35	80.00	—	—	—	—	—	—
1	—	62.3%	0.80	0.10	0.45	85.00	—	—	—	—	—	—
9	1	62.9%	0.20	0.00	0.35	90.00	—	—	—	—	—	—

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 KMX put/call ratio?

For the December 18, 2026 expiration, the KMX put/call ratio based on open interest is 2.73 (1,096 puts vs 401 calls), and 0.95 based on today's volume. A ratio above 1 means more puts than calls.

What is KMX's implied volatility?

At-the-money implied volatility for KMX options expiring December 18, 2026 is about 51.4%, an annualized estimate of how much the market expects CarMax stock to move.

How many KMX option expiration dates are there?

KMX has 8 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.