McKesson (MCK) Options Chain

NYSE: MCKHealth CareOther PharmaceuticalsUSD

938.84+8.59 (+0.92%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $938.84
Put/call ratio (OI): 0.87
Put/call ratio (volume): 0.18
ATM implied volatility: 73.3%
Expected move: ±$297.11
Open interest (C / P): 1.90K / 1.66K

MCK options summary

The MCK options chain for the December 18, 2026 expiration lists 68 call and 63 put contracts, with 68 days until expiration. Open interest stands at 1,902 calls and 1,655 puts, a put/call ratio of 0.87, which is fairly balanced between calls and puts. At-the-money implied volatility near the $940.00 strike is 73.3%, which implies the market expects a move of about ±$297.11 (31.6%) in McKesson stock by expiration.

The most open interest sits at the $1,000.00 call (320 contracts) and the $720.00 put (181 contracts).

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

MCK options chain · December 18, 2026

MCK 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
—	—	—	—	—	—	410.00	0.00	8.70	0.10	107.5%	1	8
1	—	138.0%	544.00	529.90	538.30	420.00	0.00	0.00	1.80	25.0%	1	0
—	—	—	—	—	—	430.00	0.00	4.70	1.70	91.6%	1	26
0	—	—	444.80	0.00	0.00	440.00	0.00	0.00	2.35	25.0%	1	0
—	—	—	—	—	—	450.00	0.00	4.70	2.05	86.8%	1	74
—	—	—	—	—	—	460.00	0.00	0.00	2.80	25.0%	1	0
0	—	—	422.20	0.00	0.00	470.00	0.00	8.80	0.50	91.8%	2	11
—	—	—	—	—	—	480.00	0.00	6.40	1.80	84.3%	2	13
—	—	—	—	—	—	490.00	0.00	7.50	1.95	84.3%	1	4
5	3	—	349.10	376.40	385.00	500.00	0.00	8.90	0.50	84.8%	1	12
—	—	—	—	—	—	510.00	0.00	5.30	1.84	75.0%	2	4
1	—	—	318.00	356.50	365.00	520.00	0.00	7.60	4.51	77.8%	2	12
—	—	—	—	—	—	530.00	0.00	7.50	3.10	75.4%	1	9
132	1	—	337.00	370.00	378.20	540.00	0.00	7.00	2.80	72.3%	1	3
0	—	—	343.71	0.00	0.00	550.00	0.00	9.20	1.90	74.0%	1	16
0	2	—	309.68	0.00	0.00	560.00	0.00	9.30	2.10	72.0%	1	9
1	—	—	282.30	308.80	316.50	570.00	0.30	7.80	4.85	68.0%	7	8
1	—	—	356.47	301.20	310.30	580.00	0.00	9.60	2.65	68.3%	1	1
3	2	—	261.30	290.50	295.50	590.00	0.00	9.70	4.95	66.4%	2	2
—	—	—	—	—	—	600.00	0.00	9.50	2.04	64.1%	5	3
—	—	—	—	—	—	610.00	0.00	10.00	5.10	62.8%	1	1
2	1	60.5%	250.73	319.00	328.50	620.00	0.00	0.00	4.45	12.5%	—	0
—	—	—	—	—	—	630.00	0.00	0.00	4.55	12.5%	4	0
2	2	—	230.30	273.00	281.70	640.00	0.00	2.15	2.39	48.2%	2	10
—	—	—	—	—	—	650.00	0.00	10.00	3.20	55.0%	1	4
3	1	55.2%	220.69	280.00	289.50	660.00	0.00	10.00	3.90	53.1%	1	5
7	12	—	181.90	205.70	211.00	680.00	0.10	10.00	3.50	58.8%	1	12
1	3	57.7%	207.93	241.00	250.90	700.00	0.00	7.90	5.00	51.3%	1	79
6	6	—	107.17	135.00	143.30	720.00	0.05	10.00	8.40	50.6%	1	181
4	2	—	87.28	151.10	159.90	740.00	0.05	10.00	6.00	46.7%	10	178
4	1	47.7%	172.55	184.00	192.90	760.00	0.10	10.00	6.40	42.8%	1	148
0	10	—	102.57	0.00	0.00	780.00	4.10	10.00	8.40	38.9%	1	154
3	1	43.2%	144.50	157.70	164.50	790.00	2.95	11.10	7.35	38.3%	4	8
17	1	40.8%	84.94	149.00	154.20	800.00	4.10	12.20	15.50	37.5%	3	124
4	2	40.3%	97.75	140.10	145.80	810.00	5.30	11.60	14.20	34.9%	1	10
1	1	—	53.80	92.60	99.00	820.00	9.50	11.60	10.00	33.0%	4	65
112	1	38.8%	109.40	123.00	129.00	830.00	8.10	16.60	14.00	35.7%	4	18
14	13	39.0%	105.60	114.00	122.00	840.00	11.10	17.70	17.00	34.5%	1	162
5	1	38.3%	85.73	107.10	114.00	850.00	13.20	18.20	17.80	32.8%	1	15
8	1	36.6%	80.61	100.30	104.90	860.00	15.90	20.00	21.20	32.0%	7	15
23	1	36.5%	90.40	92.00	98.00	870.00	18.80	24.10	23.90	32.8%	5	11
26	4	35.6%	56.00	85.00	90.30	880.00	21.50	25.70	29.20	31.5%	1	103
12	1	36.0%	66.80	78.20	84.80	890.00	23.30	28.20	26.00	30.8%	2	101
62	2	34.9%	77.10	71.40	77.20	900.00	26.20	32.30	37.10	30.9%	1	6
11	8	35.0%	67.44	65.00	71.70	910.00	30.40	34.90	41.40	29.9%	1	2
10	1	33.9%	44.13	58.90	64.60	920.00	—	—	—	—	—	—
20	1	34.3%	58.00	52.30	60.00	930.00	171.40	178.00	112.40	111.6%	7	9
MCK $938.84
27	1	33.2%	40.90	47.50	53.50	940.00	180.10	187.00	120.10	113.4%	1	2
0	1	0.8%	36.65	0.00	0.00	950.00	189.20	196.00	118.00	115.3%	2	2
62	59	33.4%	20.05	36.50	45.00	960.00	198.30	205.00	127.30	117.2%	—	1
13	1	32.7%	22.72	32.20	40.00	970.00	—	—	—	—	—	—
28	2	33.2%	10.00	29.40	37.00	980.00	64.40	72.30	79.74	29.5%	1	4
7	2	32.7%	18.50	24.50	32.90	990.00	—	—	—	—	—	—
320	26	31.5%	16.00	23.00	27.80	1,000.00	231.00	236.70	248.80	121.5%	1	0
15	8	31.1%	22.47	19.90	24.50	1,010.00	86.40	91.40	126.75	28.2%	4	2
46	4	30.6%	12.52	17.30	21.10	1,020.00	—	—	—	—	—	—
4	4	30.7%	10.52	14.70	18.90	1,030.00	—	—	—	—	—	—
8	1	30.3%	10.30	12.40	16.30	1,040.00	—	—	—	—	—	—
30	3	32.4%	10.20	8.00	17.00	1,050.00	—	—	—	—	—	—
23	7	32.0%	9.30	10.90	14.70	1,060.00	—	—	—	—	—	—
2	1	32.9%	5.30	5.00	14.00	1,070.00	—	—	—	—	—	—
165	155	33.1%	5.13	3.10	12.70	1,080.00	140.80	149.00	195.00	28.3%	—	0
125	311	32.8%	3.49	2.40	11.00	1,090.00	149.00	158.00	195.00	28.4%	4	4
167	4	33.1%	4.80	1.75	10.00	1,100.00	158.20	167.00	205.00	28.3%	3	0
112	—	34.2%	2.59	1.20	9.90	1,110.00	168.20	177.00	215.00	29.5%	1	0
4	—	35.5%	2.50	0.95	9.90	1,120.00	177.10	186.00	225.00	29.2%	3	0
1	—	34.8%	3.20	0.00	8.30	1,130.00	186.80	196.00	235.10	30.3%	—	0
0	3	6.3%	43.45	0.00	0.00	1,140.00	199.00	206.00	237.40	31.3%	—	0
20	20	32.9%	2.88	0.45	5.20	1,150.00	209.00	215.00	215.80	30.7%	1	0
2	2	47.4%	25.50	6.00	17.00	1,160.00	219.40	225.00	225.80	31.6%	2	2
67	5	39.8%	1.30	0.00	7.90	1,180.00	241.00	250.40	232.90	41.5%	2	2
2	2	44.5%	15.38	1.55	10.00	1,200.00	—	—	—	—	—	—
3	3	47.7%	1.10	0.00	9.30	1,240.00	—	—	—	—	—	—
0	1	12.5%	6.35	0.00	0.00	1,260.00	314.40	324.00	332.00	38.5%	—	0
2	2	51.3%	0.60	0.00	9.10	1,280.00	—	—	—	—	—	—
140	1	44.4%	0.50	0.00	4.00	1,300.00	—	—	—	—	—	—
0	—	12.5%	4.49	0.00	0.00	1,340.00	—	—	—	—	—	—
1	—	55.7%	0.55	0.00	8.70	1,440.00	—	—	—	—	—	—
3	—	56.4%	0.15	0.00	8.70	1,450.00	—	—	—	—	—	—
2	—	57.1%	0.65	0.00	8.70	1,460.00	—	—	—	—	—	—

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 MCK put/call ratio?

For the December 18, 2026 expiration, the MCK put/call ratio based on open interest is 0.87 (1,655 puts vs 1,902 calls), and 0.18 based on today's volume. A ratio above 1 means more puts than calls.

What is MCK's implied volatility?

At-the-money implied volatility for MCK options expiring December 18, 2026 is about 73.3%, an annualized estimate of how much the market expects McKesson stock to move.

How many MCK option expiration dates are there?

MCK has 10 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.

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.