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Zenas BioPharma ZBIO

US equityMarket cap rank #2853
$27.83 −$0.47 (-1.64%)
Pre-market · Oct 6, 5:40 am ET · After hours $27.83 0.00%
Open$28.47
Prev close$28.30
Day range$27.77 – $29.06
Volume1.13M
Market cap$1.81B
P/E (TTM)–
Dividend yield–

Average implied volatility across the listed chain right now: 199%. 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 $30.00 $2.50 $0.00/$2.45 0 1 178%
16 Oct 2026 $25.00 $5.83 $2.00/$6.00 0 0 129%
16 Oct 2026 $22.50 $7.72 $4.00/$8.00 0 0 145%
16 Oct 2026 $35.00 $0.20 $0.10/$0.30 1 8 98%
16 Oct 2026 $20.00 $9.72 $6.50/$10.50 0 0 196%
16 Oct 2026 $17.50 $11.82 $9.00/$13.00 0 1 252%
16 Oct 2026 $40.00 $1.37 $0.00/$4.90 0 1 240%
16 Oct 2026 $45.00 $1.09 $0.00/$4.90 0 1 261%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $30.00 $4.22 $0.50/$4.70 0 1 64%
16 Oct 2026 $25.00 $2.55 $0.10/$4.80 0 40 209%
16 Oct 2026 $22.50 $1.94 $0.00/$4.90 0 0 242%
16 Oct 2026 $35.00 $8.50 $5.00/$8.50 0 1 0%
16 Oct 2026 $20.00 $1.45 $0.00/$4.90 0 0 270%
16 Oct 2026 $17.50 $1.05 $0.00/$4.90 0 0 298%
16 Oct 2026 $40.00 $13.07 $9.50/$13.50 0 0 0%
16 Oct 2026 $45.00 $17.79 $14.50/$18.50 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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