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Builders FirstSource BLDR

US equityMarket cap rank #1914
$55.63 −$0.62 (-1.10%)
Market closed · Oct 5, 10:50 pm ET · Last extended-hours $55.75 +0.22%
Open$56.49
Prev close$56.25
Day range$54.99 – $56.99
Volume2.96M
Market cap$5.99B
P/E (TTM)60.5
Dividend yield–

Average implied volatility across the listed chain right now: 82%. Implied volatility measures how big a price swing the options market is pricing in — there is no fixed “normal” level, it varies a lot by stock.

Calls

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $55.00 $3.00 $1.65/$2.90 2 276 51%
16 Oct 2026 $60.00 $0.90 $0.55/$0.85 43 929 56%
16 Oct 2026 $50.00 $7.07 $5.30/$7.30 0 18 69%
16 Oct 2026 $65.00 $0.17 $0.05/$0.20 58 497 56%
16 Oct 2026 $45.00 $11.68 $9.90/$12.10 0 8 92%
16 Oct 2026 $70.00 $0.05 $0.00/$0.15 15 703 65%
16 Oct 2026 $40.00 $16.58 $14.80/$17.10 0 43 126%
16 Oct 2026 $75.00 $0.05 $0.00/$0.10 1 916 81%
16 Oct 2026 $35.00 $21.00 $20.30/$22.00 30 65 189%
16 Oct 2026 $80.00 $0.02 $0.00/$0.15 0 88 83%
16 Oct 2026 $85.00 $0.01 $0.00/$0.05 0 17 87%
16 Oct 2026 $90.00 $0.00 $0.00/$0.05 0 16 91%
16 Oct 2026 $95.00 $0.00 $0.00/$0.15 0 33 95%
16 Oct 2026 $100.00 $0.00 $0.00/$0.05 0 20 98%
16 Oct 2026 $105.00 $0.00 $0.00/$0.05 0 0 101%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $55.00 $1.70 $1.10/$2.15 122 1,406 52%
16 Oct 2026 $60.00 $4.79 $4.60/$5.20 4 356 52%
16 Oct 2026 $50.00 $0.30 $0.00/$0.45 134 289 54%
16 Oct 2026 $65.00 $8.75 $8.30/$9.70 6 522 0%
16 Oct 2026 $45.00 $0.11 $0.00/$0.15 0 97 72%
16 Oct 2026 $70.00 $14.27 $14.20/$14.60 1 602 70%
16 Oct 2026 $40.00 $0.02 $0.00/$0.10 0 7 80%
16 Oct 2026 $75.00 $18.92 $18.20/$19.60 1 1 0%
16 Oct 2026 $35.00 $0.00 $0.00/$0.05 0 0 87%
16 Oct 2026 $80.00 $23.75 $23.00/$25.20 0 0 0%
16 Oct 2026 $85.00 $28.75 $28.10/$29.80 0 0 0%
16 Oct 2026 $90.00 $33.75 $32.70/$35.20 0 0 0%
16 Oct 2026 $95.00 $38.75 $37.60/$40.20 0 0 0%
16 Oct 2026 $100.00 $43.75 $42.90/$45.20 0 0 0%
16 Oct 2026 $105.00 $48.75 $48.00/$50.20 0 0 0%

Open interest = contracts currently outstanding (not yet closed out). Higher open interest generally means a strike/expiry is more actively traded and easier to get in and out of.

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