MBC · MasterBrand, Inc.

$9.15 -0.14 (-1.51%) At close · Aug 14

Customer concentration — top 10 customers 50% of revenue

10 customers — 50% of revenue (2025 fiscal year)

“Our ten largest customers generated approximately 50 percent, 55 percent and 55 percent of our net sales for our 2025, 2024 and 2023 fiscal years, respectively.”

2 customers — 33% of revenue (2025 fiscal year)

“Lowe's and Home Depot comprised approximately 33 percent, 37 percent and 37 percent of our net sales for our 2025, 2024 and 2023 fiscal years.”

10 customers — 55% of revenue (2024 fiscal year)

“Our ten largest customers generated approximately 50 percent, 55 percent and 55 percent of our net sales for our 2025, 2024 and 2023 fiscal years, respectively.”

2 customers — 37% of revenue (2024 fiscal year)

“Lowe's and Home Depot comprised approximately 33 percent, 37 percent and 37 percent of our net sales for our 2025, 2024 and 2023 fiscal years.”

10 customers — 55% of revenue (2023 fiscal year)

“Our ten largest customers generated approximately 50 percent, 55 percent and 55 percent of our net sales for our 2025, 2024 and 2023 fiscal years, respectively.”

2 customers — 37% of revenue (2023 fiscal year)

“Lowe's and Home Depot comprised approximately 33 percent, 37 percent and 37 percent of our net sales for our 2025, 2024 and 2023 fiscal years.”

View the 10-K filed Feb 13, 2026

Market Cap

$1.86B

203.49M

Options Chain

Underlying $9.15 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 16 contracts · mixed snapshot sessions · Jul 22, 2026–Aug 12, 2026; 6 unknown

Put / call OI

—

dated and unknown snapshot sessions

Open interest

—

dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 5d Sep 18 33d Oct 16 61d Dec 18 124d Jan 15 152d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
3	6	—	—	$6.65		$0.05	-0.02	629.6%	2	3
Call · $2.5 In the money Snapshot session Aug 12, 2026 Last $6.65 Breakeven $9.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $2.5 Snapshot session Jul 30, 2026 Last $0.05 Breakeven $2.45 Implied vol 629.6% Delta -0.02 ≈2% ITM Gamma 0.007 Theta -0.031 Vega 0.001 Open interest 3 Model this put
0	—	—	—	—		$0.05	-0.05	342.1%	2	1
Call · $5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $5 Snapshot session Jul 29, 2026 Last $0.05 Breakeven $4.95 Implied vol 342.1% Delta -0.05 ≈5% ITM Gamma 0.027 Theta -0.036 Vega 0.001 Open interest 1 Model this put
0	—	101.8%	0.951	—		$0.43	-0.169	191.5%	1k	55
Call · $7.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 101.8% Delta 0.951 ≈95% ITM Gamma 0.087 Theta -0.011 Vega 0.001 Open interest 0 Model this call Put · $7.5 Snapshot session Aug 10, 2026 Last $0.43 Breakeven $7.07 Implied vol 191.5% Delta -0.169 ≈17% ITM Gamma 0.115 Theta -0.049 Vega 0.003 Open interest 55 Model this put
Underlying $9.15
351	5	93.9%	0.247	$0.12		$0.99	-0.826	70.2%	2k	1k
Call · $10 Snapshot session Aug 6, 2026 Last $0.12 Breakeven $10.12 Implied vol 93.9% Delta 0.247 ≈25% ITM Gamma 0.299 Theta -0.031 Vega 0.003 Open interest 351 Model this call Put · $10 In the money Snapshot session Aug 10, 2026 Last $0.99 Breakeven $9.01 Implied vol 70.2% Delta -0.826 ≈83% ITM Gamma 0.323 Theta -0.017 Vega 0.003 Open interest 1k Model this put
77	1	224.5%	0.165	$0.22		$4.10	—	—	4	1
Call · $12.5 Snapshot session Jul 24, 2026 Last $0.22 Breakeven $12.72 Implied vol 224.5% Delta 0.165 ≈16% ITM Gamma 0.098 Theta -0.057 Vega 0.002 Open interest 77 Model this call Put · $12.5 In the money Snapshot session Jul 22, 2026 Last $4.10 Breakeven $8.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	—	—	—		$6.55	-0.972	196.6%	4	0
Call · $15 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $15 In the money Snapshot session Jul 22, 2026 Last $6.55 Breakeven $8.45 Implied vol 196.6% Delta -0.972 ≈97% ITM Gamma 0.03 Theta -0.012 Vega 0.001 Open interest 0 Model this put
0	—	—	—	—		$9.05	-0.976	246.3%	6	3
Call · $17.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $17.5 In the money Snapshot session Jul 22, 2026 Last $9.05 Breakeven $8.45 Implied vol 246.3% Delta -0.976 ≈98% ITM Gamma 0.021 Theta -0.013 Vega 0.001 Open interest 3 Model this put
0	—	—	—	—		—	-0.979	289.4%	—	0
Call · $20 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $20 In the money Snapshot session Unknown Last — Breakeven — Implied vol 289.4% Delta -0.979 ≈98% ITM Gamma 0.016 Theta -0.014 Vega 0.001 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 22, 2026–Aug 12, 2026; 6 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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.

Key facts CIK 1941365 CUSIP 57638P104 13F (30d) 338 filings 322 filers Visit website Investor relations