CarMax (KMX) Options Chain

NYSE: KMXConsumer DiscretionaryRetail-Auto Dealers and Gas StationsUSD

53.79+0.51 (+0.96%)

At close: Oct 8, 4:01 PM ET · Delayed 15 min

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 8
Share price: $53.79
Put/call ratio (OI): 0.67
Put/call ratio (volume): 1.68
ATM implied volatility: 45.0%
Expected move: ±$3.58
Open interest (C / P): 19.74K / 13.24K

KMX options summary

The KMX options chain for the October 16, 2026 expiration lists 22 call and 23 put contracts, with 8 days until expiration. Open interest stands at 19,736 calls and 13,245 puts, a put/call ratio of 0.67, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $55.00 strike is 45.0%, which implies the market expects a move of about ±$3.58 (6.7%) in CarMax stock by expiration.

The most open interest sits at the $70.00 call (6.81K contracts) and the $47.50 put (3.08K contracts).

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

KMX options chain · October 16, 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
0	1	—	42.97	0.00	0.00	20.00	0.00	0.05	0.10	265.6%	1	21
—	—	—	—	—	—	22.50	0.00	0.05	0.03	237.5%	1	19
—	—	—	—	—	—	25.00	0.00	1.10	0.15	347.1%	3	229
—	—	—	—	—	—	27.50	0.00	0.55	0.15	266.8%	8	43
0	5	—	31.06	0.00	0.00	30.00	0.00	0.30	0.10	211.3%	3	292
0	2	—	14.00	0.00	0.00	32.50	0.00	0.75	0.05	222.7%	1	96
5	4	180.1%	27.25	17.50	20.60	35.00	0.00	0.75	0.07	195.1%	1	496
23	1	199.8%	25.49	15.00	17.00	37.50	0.00	0.75	0.02	169.1%	1	117
13	2	156.4%	18.00	12.40	14.30	40.00	0.00	0.05	0.02	88.3%	7	535
272	7	151.7%	18.53	10.00	12.10	42.50	0.00	0.05	0.03	72.7%	1	1,750
333	11	130.4%	9.98	7.80	9.70	45.00	0.00	0.25	0.05	75.0%	1	605
78	3	93.8%	5.77	5.10	7.00	47.50	0.00	0.15	0.09	50.4%	27	3,079
409	14	54.2%	6.20	3.50	4.20	50.00	0.10	0.30	0.30	48.5%	15	1,808
124	22	48.4%	1.88	1.85	2.25	52.50	0.60	0.85	0.77	44.7%	28	574
KMX $53.79
433	10	44.3%	0.77	0.10	0.90	55.00	1.70	2.15	2.15	45.6%	51	2,754
1,573	7	60.2%	0.21	0.10	0.65	57.50	3.70	4.50	4.60	65.6%	36	509
1,259	14	57.3%	0.05	0.00	0.45	60.00	6.00	6.50	6.40	61.5%	13	257
3,244	1	53.1%	0.05	0.00	0.10	62.50	8.50	9.90	9.20	89.4%	1	57
825	7	64.5%	0.03	0.00	0.10	65.00	11.00	12.50	12.00	107.6%	5	4
1,608	1	105.1%	0.02	0.00	0.60	67.50	13.40	14.80	10.90	111.9%	8	0
6,807	2	77.3%	0.09	0.00	0.05	70.00	15.90	18.00	13.29	147.6%	4	0
123	1	94.1%	0.05	0.00	0.10	72.50	18.40	19.70	17.40	132.4%	—	0
1,046	4	93.8%	0.01	0.00	0.05	75.00	21.00	23.10	19.56	179.1%	2	0
1,554	5	109.4%	0.02	0.00	0.05	80.00	—	—	—	—	—	—
7	6	186.3%	0.05	0.00	0.75	85.00	—	—	—	—	—	—

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 October 16, 2026 expiration, the KMX put/call ratio based on open interest is 0.67 (13,245 puts vs 19,736 calls), and 1.68 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 October 16, 2026 is about 45.0%, 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.