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Birkenstock BIRK

US equityMarket cap rank #1988
$33.77 +$0.44 (+1.32%)
Market closed · Oct 5, 8:20 pm ET · Last extended-hours $33.75 -0.06%
Open$33.30
Prev close$33.33
Day range$32.96 – $33.88
Volume1.98M
Market cap$5.58B
P/E (TTM)16.4
Dividend yield–

Average implied volatility across the listed chain right now: 118%. 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 $35.00 $0.60 $0.55/$0.65 3,550 6,535 46%
16 Oct 2026 $32.50 $1.85 $1.60/$2.20 2 4,322 49%
16 Oct 2026 $37.50 $0.20 $0.10/$0.55 269 939 61%
16 Oct 2026 $30.00 $3.95 $2.80/$4.20 2 55 0%
16 Oct 2026 $40.00 $0.10 $0.00/$0.30 0 5,397 62%
16 Oct 2026 $27.50 $5.84 $5.20/$6.70 0 86 0%
16 Oct 2026 $42.50 $0.04 $0.00/$0.50 0 517 68%
16 Oct 2026 $25.00 $8.33 $7.60/$9.10 0 1 0%
16 Oct 2026 $45.00 $0.02 $0.00/$0.50 0 3,065 73%
16 Oct 2026 $22.50 $10.83 $9.60/$13.20 0 0 135%
16 Oct 2026 $47.50 $0.01 $0.00/$0.95 0 29 78%
16 Oct 2026 $20.00 $13.33 $12.20/$15.60 0 0 169%
16 Oct 2026 $50.00 $0.01 $0.00/$1.05 0 724 82%
16 Oct 2026 $17.50 $15.83 $14.70/$18.10 0 1 207%
16 Oct 2026 $52.50 $0.00 $0.00/$1.15 0 17 86%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $35.00 $2.08 $1.65/$3.10 7 495 72%
16 Oct 2026 $32.50 $0.85 $0.50/$0.80 10 2,777 52%
16 Oct 2026 $37.50 $4.55 $3.40/$5.10 0 1,091 75%
16 Oct 2026 $30.00 $0.11 $0.10/$0.25 19 3,684 57%
16 Oct 2026 $40.00 $6.92 $5.80/$7.60 0 5,505 97%
16 Oct 2026 $27.50 $0.05 $0.00/$0.20 7 32,033 67%
16 Oct 2026 $42.50 $9.36 $8.10/$10.80 0 472 135%
16 Oct 2026 $25.00 $0.02 $0.00/$0.25 0 132 78%
16 Oct 2026 $45.00 $11.83 $10.20/$13.30 0 2,792 142%
16 Oct 2026 $22.50 $0.00 $0.00/$0.95 0 449 85%
16 Oct 2026 $47.50 $14.32 $12.90/$15.80 0 30 167%
16 Oct 2026 $20.00 $0.00 $0.00/$2.10 0 5 92%
16 Oct 2026 $50.00 $16.81 $15.40/$18.30 0 1,089 183%
16 Oct 2026 $17.50 $0.00 $0.00/$2.15 0 14 102%
16 Oct 2026 $52.50 $19.31 $17.90/$20.80 0 0 199%

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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