Core & Main (CNM) Options Chain

NYSE: CNMConsumer DiscretionaryDurable GoodsUSD

40.37-0.33 (-0.81%)

At close: Oct 8, 4:00 PM ET · Delayed 15 min

After hours: 40.37 -0.02%

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 8
Share price: $40.37
Put/call ratio (OI): 0.23
Put/call ratio (volume): 0.61
ATM implied volatility: 41.3%
Expected move: ±$2.47
Open interest (C / P): 724 / 168

CNM options summary

The CNM options chain for the October 16, 2026 expiration lists 9 call and 6 put contracts, with 8 days until expiration. Open interest stands at 724 calls and 168 puts, a put/call ratio of 0.23, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $40.00 strike is 41.3%, which implies the market expects a move of about ±$2.47 (6.1%) in Core & Main stock by expiration.

The most open interest sits at the $42.50 call (504 contracts) and the $35.00 put (64 contracts).

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

CNM options chain · October 16, 2026

CNM 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
4	—	150.6%	9.40	6.90	8.70	32.50	0.00	0.75	0.24	115.8%	—	1
—	—	—	—	—	—	35.00	0.00	0.10	0.05	52.0%	33	64
1	1	79.5%	6.42	2.40	3.70	37.50	0.00	0.75	0.20	55.5%	30	50
7	1	48.0%	3.31	0.55	1.40	40.00	0.30	0.70	0.75	34.7%	1	41
CNM $40.37
504	1	45.0%	0.85	0.00	0.40	42.50	1.60	3.40	0.90	83.7%	1	7
52	17	74.5%	0.15	0.00	0.95	45.00	3.50	5.80	2.70	109.4%	15	5
122	100	89.5%	0.25	0.00	0.75	47.50	—	—	—	—	—	—
20	10	115.4%	0.85	0.00	0.95	50.00	—	—	—	—	—	—
12	1	132.8%	0.43	0.00	0.95	52.50	—	—	—	—	—	—
2	1	148.8%	0.73	0.00	0.95	55.00	—	—	—	—	—	—

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 CNM put/call ratio?

For the October 16, 2026 expiration, the CNM put/call ratio based on open interest is 0.23 (168 puts vs 724 calls), and 0.61 based on today's volume. A ratio above 1 means more puts than calls.

What is CNM's implied volatility?

At-the-money implied volatility for CNM options expiring October 16, 2026 is about 41.3%, an annualized estimate of how much the market expects Core & Main stock to move.

How many CNM option expiration dates are there?

CNM has 6 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.