McKesson (MCK) Options Chain

NYSE: MCKHealth CareOther PharmaceuticalsUSD

930.47+20.14 (+2.21%)

At close: Oct 8, 3:59 PM ET · Delayed 15 min

After hours: 930.25 -0.02%

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 8
Share price: $930.25
Put/call ratio (OI): 0.65
Put/call ratio (volume): 1.67
ATM implied volatility: 30.0%
Expected move: ±$41.36
Open interest (C / P): 1.43K / 923

MCK options summary

The MCK options chain for the October 16, 2026 expiration lists 26 call and 28 put contracts, with 8 days until expiration. Open interest stands at 1,426 calls and 923 puts, a put/call ratio of 0.65, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $930.00 strike is 30.0%, which implies the market expects a move of about ±$41.36 (4.4%) in McKesson stock by expiration.

The most open interest sits at the $920.00 call (201 contracts) and the $850.00 put (152 contracts).

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

MCK options chain · October 16, 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
1	2	102.4%	179.47	227.50	237.00	700.00	0.00	8.60	0.05	119.7%	1	18
—	—	—	—	—	—	710.00	0.00	8.60	0.95	114.8%	4	2
1	1	89.5%	212.00	207.00	216.60	720.00	0.00	8.60	0.70	110.0%	5	6
—	—	—	—	—	—	740.00	0.00	8.60	4.31	100.6%	2	6
1	1	82.4%	156.11	177.80	187.00	750.00	0.00	8.30	1.19	95.1%	1	21
0	—	74.7%	129.60	167.50	176.40	760.00	0.00	4.90	4.40	80.3%	2	2
—	—	—	—	—	—	770.00	0.00	7.10	0.77	82.7%	3	5
—	—	—	—	—	—	780.00	0.30	1.90	0.30	61.5%	5	15
—	—	—	—	—	—	790.00	0.00	1.20	0.83	52.1%	10	21
1	2	59.8%	133.80	129.40	134.80	800.00	0.00	1.05	0.40	53.5%	4	29
—	—	—	—	—	—	810.00	0.00	4.90	4.60	59.4%	2	27
3	3	57.7%	60.15	109.80	116.60	820.00	0.05	1.10	0.40	46.6%	4	37
3	1	55.4%	59.01	100.50	106.80	830.00	0.05	1.10	0.43	42.9%	15	39
6	11	51.0%	84.54	90.40	96.90	840.00	0.00	1.80	0.60	43.5%	4	35
8	1	60.5%	75.00	78.60	88.00	850.00	0.00	4.90	4.60	51.9%	115	152
4	5	52.6%	67.53	70.60	77.00	860.00	0.00	4.90	1.87	47.1%	4	62
25	8	49.8%	66.80	60.90	67.90	870.00	0.25	3.80	3.35	38.9%	1	55
77	1	47.1%	35.40	52.80	59.00	880.00	0.60	7.20	4.40	43.4%	2	21
54	3	41.4%	29.63	43.00	49.00	890.00	0.35	3.50	2.60	28.6%	5	72
26	2	39.7%	22.45	33.50	41.00	900.00	1.00	9.00	7.08	36.1%	1	87
22	1	37.1%	20.30	25.70	33.00	910.00	2.30	10.20	13.00	32.3%	103	111
201	2	33.6%	24.35	19.90	25.00	920.00	5.30	13.00	12.20	30.5%	74	89
120	7	34.1%	8.36	13.20	20.00	930.00	9.60	15.00	11.50	26.0%	5	11
MCK $930.25
140	22	33.3%	13.70	8.50	15.00	940.00	—	—	—	—	—	—
185	11	32.8%	5.94	6.10	11.00	950.00	—	—	—	—	—	—
123	2	34.9%	4.50	0.85	9.10	960.00	—	—	—	—	—	—
157	2	38.7%	0.80	0.05	8.40	970.00	38.10	42.60	78.00	25.3%	—	0
78	5	41.8%	1.80	0.05	7.60	980.00	45.60	52.20	85.00	28.1%	2	0
26	2	26.1%	0.70	0.55	1.10	990.00	54.80	63.20	95.00	35.2%	2	0
100	130	43.5%	1.45	0.10	4.90	1,000.00	64.00	71.40	105.00	32.1%	4	0
2	1	53.1%	0.20	0.05	6.90	1,010.00	75.40	83.80	101.10	44.7%	—	0
62	1	51.2%	0.20	0.00	4.90	1,020.00	—	—	—	—	—	—

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 October 16, 2026 expiration, the MCK put/call ratio based on open interest is 0.65 (923 puts vs 1,426 calls), and 1.67 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 October 16, 2026 is about 30.0%, 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.