BLDR · Builders FirstSource, Inc.

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$72.93 -2.94 (-3.87%)

Market Cap

$8.16B

107.60M

Options Chain

15-min delayed Underlying $72.93 · today Options Calculator

Positioning

Aug 21, 2026 · 15 days to expiry · 62 contracts

Put / call OI

0.64

Call-heavy positioning

Open interest

14,596

contracts outstanding

Volume

997

traded today

Max pain

$75.00

$2.08 above spot

ATM implied vol

55.9%

market's expected move

Open interest by strike · near the money

Calls Puts

100

105

110

115

120

125

130

135

140

145

150

155

160

165

170

175

180

185

190

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 15d Sep 18 43d Nov 20 106d Dec 18 134d Jan 15 162d Feb 19 197d Mar 19 225d Jun 17 315d Jan 21 533d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
2	2	112.3%	0.997	$26.35		$0.27	-0.02	159.2%	4	4
Call · $40 In the money Last $26.35 Breakeven $66.35 Implied vol 112.3% Delta 0.997 ≈100% ITM Gamma 0 Theta -0.008 Vega 0.001 Open interest 2 Model this call Put · $40 Last $0.27 Breakeven $39.73 Implied vol 159.2% Delta -0.02 ≈2% ITM Gamma 0.002 Theta -0.038 Vega 0.006 Open interest 4 Model this put
0	—	84.2%	0.998	—		$0.16	-0.032	139.6%	1	5
Call · $45 In the money Last — Breakeven — Implied vol 84.2% Delta 0.998 ≈100% ITM Gamma 0 Theta -0.007 Vega 0.001 Open interest 0 Model this call Put · $45 Last $0.16 Breakeven $44.84 Implied vol 139.6% Delta -0.032 ≈3% ITM Gamma 0.003 Theta -0.049 Vega 0.012 Open interest 5 Model this put
0	1	85.1%	0.99	$19.60		$0.03	-0.021	97.5%	10	66
Call · $50 In the money Last $19.60 Breakeven $69.60 Implied vol 85.1% Delta 0.99 ≈99% ITM Gamma 0.002 Theta -0.016 Vega 0.006 Open interest 0 Model this call Put · $50 Last $0.03 Breakeven $49.97 Implied vol 97.5% Delta -0.021 ≈2% ITM Gamma 0.004 Theta -0.024 Vega 0.006 Open interest 66 Model this put
1	2	77.5%	0.971	$11.33		$0.05	-0.019	69.3%	13	551
Call · $55 In the money Last $11.33 Breakeven $66.33 Implied vol 77.5% Delta 0.971 ≈97% ITM Gamma 0.006 Theta -0.031 Vega 0.013 Open interest 1 Model this call Put · $55 Last $0.05 Breakeven $54.95 Implied vol 69.3% Delta -0.019 ≈2% ITM Gamma 0.004 Theta -0.015 Vega 0.006 Open interest 551 Model this put
4	1	—	—	$7.18		$0.22	-0.054	62.7%	13	752
Call · $60 In the money Last $7.18 Breakeven $67.18 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this call Put · $60 Last $0.22 Breakeven $59.78 Implied vol 62.7% Delta -0.054 ≈5% ITM Gamma 0.012 Theta -0.033 Vega 0.014 Open interest 752 Model this put
323	16	43.3%	0.912	$8.00		$0.85	-0.165	62.2%	71	912
Call · $65 In the money Last $8.00 Breakeven $73.00 Implied vol 43.3% Delta 0.912 ≈91% ITM Gamma 0.025 Theta -0.04 Vega 0.024 Open interest 323 Model this call Put · $65 Last $0.85 Breakeven $64.15 Implied vol 62.2% Delta -0.165 ≈17% ITM Gamma 0.027 Theta -0.075 Vega 0.037 Open interest 912 Model this put
256	4	56.1%	0.665	$6.64		$2.35	-0.343	59.6%	50	1.3k
Call · $70 In the money Last $6.64 Breakeven $76.64 Implied vol 56.1% Delta 0.665 ≈66% ITM Gamma 0.045 Theta -0.106 Vega 0.057 Open interest 256 Model this call Put · $70 Last $2.35 Breakeven $67.65 Implied vol 59.6% Delta -0.343 ≈34% ITM Gamma 0.042 Theta -0.107 Vega 0.057 Open interest 1.3k Model this put
Underlying $72.93
1.1k	9	54.2%	0.424	$2.50		$4.50	-0.57	57.7%	1	1.3k
Call · $75 Last $2.50 Breakeven $77.50 Implied vol 54.2% Delta 0.424 ≈42% ITM Gamma 0.049 Theta -0.108 Vega 0.06 Open interest 1.1k Model this call Put · $75 In the money Last $4.50 Breakeven $70.50 Implied vol 57.7% Delta -0.57 ≈57% ITM Gamma 0.046 Theta -0.108 Vega 0.06 Open interest 1.3k Model this put
1k	6	56.6%	0.23	$1.00		$6.54	-0.733	66.4%	8	341
Call · $80 Last $1.00 Breakeven $81.00 Implied vol 56.6% Delta 0.23 ≈23% ITM Gamma 0.036 Theta -0.087 Vega 0.042 Open interest 1k Model this call Put · $80 In the money Last $6.54 Breakeven $73.46 Implied vol 66.4% Delta -0.733 ≈73% ITM Gamma 0.034 Theta -0.103 Vega 0.054 Open interest 341 Model this put
1.3k	6	58.2%	0.111	$0.45		$12.49	-0.909	55.2%	1	299
Call · $85 Last $0.45 Breakeven $85.45 Implied vol 58.2% Delta 0.111 ≈11% ITM Gamma 0.022 Theta -0.055 Vega 0.029 Open interest 1.3k Model this call Put · $85 In the money Last $12.49 Breakeven $72.51 Implied vol 55.2% Delta -0.909 ≈91% ITM Gamma 0.021 Theta -0.039 Vega 0.028 Open interest 299 Model this put
631	2	60%	0.048	$0.19		$15.30	—	—	1	186
Call · $90 Last $0.19 Breakeven $90.19 Implied vol 60% Delta 0.048 ≈5% ITM Gamma 0.011 Theta -0.03 Vega 0.017 Open interest 631 Model this call Put · $90 In the money Last $15.30 Breakeven $74.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 186 Model this put
940	2	73.9%	0.046	$0.16		$30.40	-0.97	70.4%	212	6
Call · $95 Last $0.16 Breakeven $95.16 Implied vol 73.9% Delta 0.046 ≈5% ITM Gamma 0.009 Theta -0.035 Vega 0.018 Open interest 940 Model this call Put · $95 In the money Last $30.40 Breakeven $64.60 Implied vol 70.4% Delta -0.97 ≈97% ITM Gamma 0.008 Theta -0.02 Vega 0.008 Open interest 6 Model this put
1.3k	10	73%	0.019	$0.08		$33.89	-0.973	80.8%	6	0
Call · $100 Last $0.08 Breakeven $100.08 Implied vol 73% Delta 0.019 ≈2% ITM Gamma 0.004 Theta -0.017 Vega 0.009 Open interest 1.3k Model this call Put · $100 In the money Last $33.89 Breakeven $66.11 Implied vol 80.8% Delta -0.973 ≈97% ITM Gamma 0.006 Theta -0.02 Vega 0.008 Open interest 0 Model this put
205	3	96.4%	0.037	$0.05		$38.87	-0.967	96.7%	6	8
Call · $105 Last $0.05 Breakeven $105.05 Implied vol 96.4% Delta 0.037 ≈4% ITM Gamma 0.006 Theta -0.039 Vega 0.009 Open interest 205 Model this call Put · $105 In the money Last $38.87 Breakeven $66.13 Implied vol 96.7% Delta -0.967 ≈97% ITM Gamma 0.006 Theta -0.03 Vega 0.009 Open interest 8 Model this put
87	1	94.9%	0.02	$0.05		$39.17	-0.978	100.1%	61	0
Call · $110 Last $0.05 Breakeven $110.05 Implied vol 94.9% Delta 0.02 ≈2% ITM Gamma 0.003 Theta -0.022 Vega 0.009 Open interest 87 Model this call Put · $110 In the money Last $39.17 Breakeven $70.83 Implied vol 100.1% Delta -0.978 ≈98% ITM Gamma 0.004 Theta -0.021 Vega 0.008 Open interest 0 Model this put
296	1	119.3%	0.038	$0.05		$40.37	-0.989	102.2%	10	0
Call · $115 Last $0.05 Breakeven $115.05 Implied vol 119.3% Delta 0.038 ≈4% ITM Gamma 0.005 Theta -0.049 Vega 0.01 Open interest 296 Model this call Put · $115 In the money Last $40.37 Breakeven $74.63 Implied vol 102.2% Delta -0.989 ≈99% ITM Gamma 0.003 Theta -0.011 Vega 0.006 Open interest 0 Model this put
377	2	119.9%	0.027	$0.10		$53.30	-0.973	123.5%	20	0
Call · $120 Last $0.10 Breakeven $120.10 Implied vol 119.9% Delta 0.027 ≈3% ITM Gamma 0.003 Theta -0.037 Vega 0.01 Open interest 377 Model this call Put · $120 In the money Last $53.30 Breakeven $66.70 Implied vol 123.5% Delta -0.973 ≈97% ITM Gamma 0.004 Theta -0.033 Vega 0.009 Open interest 0 Model this put
11	3	127.9%	0.026	$0.10		$53.57	-0.981	125.9%	54	0
Call · $125 Last $0.10 Breakeven $125.10 Implied vol 127.9% Delta 0.026 ≈3% ITM Gamma 0.003 Theta -0.037 Vega 0.01 Open interest 11 Model this call Put · $125 In the money Last $53.57 Breakeven $71.43 Implied vol 125.9% Delta -0.981 ≈98% ITM Gamma 0.003 Theta -0.023 Vega 0.008 Open interest 0 Model this put
39	2	152.9%	0.042	$0.36		$55.38	-0.99	124.8%	31	0
Call · $130 Last $0.36 Breakeven $130.36 Implied vol 152.9% Delta 0.042 ≈4% ITM Gamma 0.004 Theta -0.068 Vega 0.01 Open interest 39 Model this call Put · $130 In the money Last $55.38 Breakeven $74.62 Implied vol 124.8% Delta -0.99 ≈99% ITM Gamma 0.002 Theta -0.011 Vega 0.003 Open interest 0 Model this put
10	1	150.4%	0.031	$0.45		$56.30	—	—	35	0
Call · $135 Last $0.45 Breakeven $135.45 Implied vol 150.4% Delta 0.031 ≈3% ITM Gamma 0.003 Theta -0.051 Vega 0.01 Open interest 10 Model this call Put · $135 In the money Last $56.30 Breakeven $78.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
568	2	157.4%	0.03	$0.13		$63.07	—	—	4	0
Call · $140 Last $0.13 Breakeven $140.13 Implied vol 157.4% Delta 0.03 ≈3% ITM Gamma 0.003 Theta -0.052 Vega 0.01 Open interest 568 Model this call Put · $140 In the money Last $63.07 Breakeven $76.93 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
279	200	166.6%	0.031	$0.55		$68.13	—	—	30	0
Call · $145 Last $0.55 Breakeven $145.55 Implied vol 166.6% Delta 0.031 ≈3% ITM Gamma 0.003 Theta -0.057 Vega 0.011 Open interest 279 Model this call Put · $145 In the money Last $68.13 Breakeven $76.87 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
6	3	168.5%	0.026	$0.15		$61.66	-0.984	162.7%	30	0
Call · $150 Last $0.15 Breakeven $150.15 Implied vol 168.5% Delta 0.026 ≈3% ITM Gamma 0.002 Theta -0.049 Vega 0.011 Open interest 6 Model this call Put · $150 In the money Last $61.66 Breakeven $88.34 Implied vol 162.7% Delta -0.984 ≈98% ITM Gamma 0.002 Theta -0.026 Vega 0.008 Open interest 0 Model this put
1	1	—	—	$0.66		$36.40	-0.974	180.1%	2	0
Call · $155 Last $0.66 Breakeven $155.66 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $155 In the money Last $36.40 Breakeven $118.60 Implied vol 180.1% Delta -0.974 ≈97% ITM Gamma 0.003 Theta -0.047 Vega 0.01 Open interest 0 Model this put
55	1	—	—	$1.89		—	-0.979	181.3%	—	0
Call · $160 Last $1.89 Breakeven $161.89 Implied vol — Delta — Gamma — Theta — Vega — Open interest 55 Model this call Put · $160 In the money Last — Breakeven — Implied vol 181.3% Delta -0.979 ≈98% ITM Gamma 0.002 Theta -0.038 Vega 0.01 Open interest 0 Model this put
40	40	—	—	$2.00		—	-0.992	167.8%	—	0
Call · $165 Last $2.00 Breakeven $167.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 40 Model this call Put · $165 In the money Last — Breakeven — Implied vol 167.8% Delta -0.992 ≈99% ITM Gamma 0.001 Theta -0.013 Vega 0.003 Open interest 0 Model this put
1	1	—	—	$0.44		—	-0.986	186.5%	—	0
Call · $170 Last $0.44 Breakeven $170.44 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $170 In the money Last — Breakeven — Implied vol 186.5% Delta -0.986 ≈99% ITM Gamma 0.002 Theta -0.028 Vega 0.004 Open interest 0 Model this put
1	1	—	—	$0.37		—	—	—	—	0
Call · $175 Last $0.37 Breakeven $175.37 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $175 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-0.981	205%	—	0
Call · $180 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $180 In the money Last — Breakeven — Implied vol 205% Delta -0.981 ≈98% ITM Gamma 0.002 Theta -0.04 Vega 0.009 Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $185 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $185 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $190 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $190 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. The 20 strikes around the money are shown by default — switch to "All 31" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1316835 CUSIP 12008R107 13F (30d) 234 filings 233 filers Visit website Investor relations