CNM · Core & Main, Inc.

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$43.63 +0.51 (+1.18%) At close · Jul 24

Market Cap

$8.34B

193.52M

Options Chain

15-min delayed Underlying $43.63 · today Options Calculator

Positioning

Aug 21, 2026 · 27 days to expiry · 28 contracts

Put / call OI

1.29

Balanced positioning

Open interest

832

contracts outstanding

Volume

traded today

Max pain

$45.00

$1.37 above spot

ATM implied vol

36.5%

market's expected move

Open interest by strike

Calls Puts

32.5

37.5

42.5

47.5

52.5

57.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 27d Sep 18 55d Dec 18 146d Jan 15 174d Mar 19 237d Jan 21 545d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	101.6%	0.934	—		—	—	—	—	0
Call · $30 In the money Last — Breakeven — Implied vol 101.6% Delta 0.934 ≈93% ITM Gamma 0.011 Theta -0.031 Vega 0.017 Open interest 0 Model this call Put · $30 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	0.2%	1	—		$0.19	—	—	2	2
Call · $32.5 In the money Last — Breakeven — Implied vol 0.2% Delta 1 ≈100% ITM Gamma 0 Theta -0.003 Vega 0 Open interest 0 Model this call Put · $32.5 Last $0.19 Breakeven $32.31 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
0	—	64.4%	0.913	—		$0.26	-0.1	69.2%	2	2
Call · $35 In the money Last — Breakeven — Implied vol 64.4% Delta 0.913 ≈91% ITM Gamma 0.021 Theta -0.026 Vega 0.018 Open interest 0 Model this call Put · $35 Last $0.26 Breakeven $34.74 Implied vol 69.2% Delta -0.1 ≈10% ITM Gamma 0.022 Theta -0.027 Vega 0.018 Open interest 2 Model this put
0	—	51.4%	0.882	—		$1.12	-0.134	54.7%	1	1
Call · $37.5 In the money Last — Breakeven — Implied vol 51.4% Delta 0.882 ≈88% ITM Gamma 0.033 Theta -0.026 Vega 0.028 Open interest 0 Model this call Put · $37.5 Last $1.12 Breakeven $36.38 Implied vol 54.7% Delta -0.134 ≈13% ITM Gamma 0.033 Theta -0.026 Vega 0.029 Open interest 1 Model this put
0	—	48.5%	0.772	—		$0.60	-0.218	45.9%	1	6
Call · $40 In the money Last — Breakeven — Implied vol 48.5% Delta 0.772 ≈77% ITM Gamma 0.053 Theta -0.035 Vega 0.039 Open interest 0 Model this call Put · $40 Last $0.60 Breakeven $39.40 Implied vol 45.9% Delta -0.218 ≈22% ITM Gamma 0.055 Theta -0.029 Vega 0.039 Open interest 6 Model this put
2	2	34.3%	0.639	$2.50		$1.35	-0.375	38.7%	1	34
Call · $42.5 In the money Last $2.50 Breakeven $45.00 Implied vol 34.3% Delta 0.639 ≈64% ITM Gamma 0.093 Theta -0.031 Vega 0.046 Open interest 2 Model this call Put · $42.5 Last $1.35 Breakeven $41.15 Implied vol 38.7% Delta -0.375 ≈37% ITM Gamma 0.084 Theta -0.031 Vega 0.046 Open interest 34 Model this put
Underlying $43.63
209	1	37.6%	0.409	$1.20		$2.50	-0.598	36.6%	1	409
Call · $45 Last $1.20 Breakeven $46.20 Implied vol 37.6% Delta 0.409 ≈41% ITM Gamma 0.088 Theta -0.034 Vega 0.048 Open interest 209 Model this call Put · $45 In the money Last $2.50 Breakeven $42.50 Implied vol 36.6% Delta -0.598 ≈60% ITM Gamma 0.092 Theta -0.029 Vega 0.048 Open interest 409 Model this put
87	3	37.4%	0.223	$0.95		$2.20	-0.929	22.6%	4	5
Call · $47.5 Last $0.95 Breakeven $48.45 Implied vol 37.4% Delta 0.223 ≈22% ITM Gamma 0.068 Theta -0.026 Vega 0.033 Open interest 87 Model this call Put · $47.5 In the money Last $2.20 Breakeven $45.30 Implied vol 22.6% Delta -0.929 ≈93% ITM Gamma 0.069 Theta -0.005 Vega 0.018 Open interest 5 Model this put
54	14	49.3%	0.175	$0.35		$4.68	—	—	10	10
Call · $50 Last $0.35 Breakeven $50.35 Implied vol 49.3% Delta 0.175 ≈17% ITM Gamma 0.044 Theta -0.029 Vega 0.034 Open interest 54 Model this call Put · $50 In the money Last $4.68 Breakeven $45.32 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 Model this put
6	3	60.8%	0.15	$0.05		—	-0.899	51.7%	—	0
Call · $52.5 Last $0.05 Breakeven $52.55 Implied vol 60.8% Delta 0.15 ≈15% ITM Gamma 0.033 Theta -0.032 Vega 0.023 Open interest 6 Model this call Put · $52.5 In the money Last — Breakeven — Implied vol 51.7% Delta -0.899 ≈90% ITM Gamma 0.032 Theta -0.017 Vega 0.022 Open interest 0 Model this put
0	—	65.9%	0.117	—		—	-0.9	63.5%	—	0
Call · $55 Last — Breakeven — Implied vol 65.9% Delta 0.117 ≈12% ITM Gamma 0.025 Theta -0.029 Vega 0.024 Open interest 0 Model this call Put · $55 In the money Last — Breakeven — Implied vol 63.5% Delta -0.9 ≈90% ITM Gamma 0.025 Theta -0.021 Vega 0.023 Open interest 0 Model this put
2	2	64.6%	0.07	$2.23		—	-0.91	72.5%	—	0
Call · $57.5 Last $2.23 Breakeven $59.73 Implied vol 64.6% Delta 0.07 ≈7% ITM Gamma 0.018 Theta -0.019 Vega 0.014 Open interest 2 Model this call Put · $57.5 In the money Last — Breakeven — Implied vol 72.5% Delta -0.91 ≈91% ITM Gamma 0.021 Theta -0.023 Vega 0.023 Open interest 0 Model this put
3	3	83.4%	0.098	$0.35		—	-0.948	70.7%	—	0
Call · $60 Last $0.35 Breakeven $60.35 Implied vol 83.4% Delta 0.098 ≈10% ITM Gamma 0.018 Theta -0.032 Vega 0.025 Open interest 3 Model this call Put · $60 In the money Last — Breakeven — Implied vol 70.7% Delta -0.948 ≈95% ITM Gamma 0.015 Theta -0.014 Vega 0.013 Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $65 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $65 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1856525 CUSIP 21874C102 13F (30d) 75 filings 75 filers Visit website Investor relations