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ASMB · Assembly Biosciences, Inc. · Options Chain

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$29.80 -0.66 (-2.17%) At close · Sep 11
Market Cap
$606.75M
Shares
20.36M

Options Chain

Underlying $29.80 · at close Sep 11, 2026 Options Calculator

Positioning

Sep 18, 2026 · 5 days to expiry · 20 contracts · mixed daily-bar sessions · Jun 3, 2026–Sep 11, 2026; 8 unknown
Put / call OI
1.10
Balanced positioning
Open interest
593
as of Sep 10, 2026
Volume
dated and unknown daily-bar sessions
Max pain
$35.00
$5.20 above spot

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator
OI Vol IV Δ Bid Ask Last Strike Last Bid Ask Δ IV Vol OI
$16.30 $20.00 $0.00 $4.90
$13.90 $17.50 $0.00 $4.90
50 20 $11.20 $15.00 $8.00 $0.80 $0.00 $4.90 1 1
1 1 $8.60 $12.50 $11.80 $1.50 $0.00 $4.90 1 23
$5.90 $10.00 $0.30 $0.00 $4.90 1 33
$3.50 $7.50 $0.15 $0.15 $0.75 2 4
73 1 $0.00 $4.80 $4.90 $1.00 $0.00 $3.00 21 52
93 20 $0.00 $0.30 $0.30 $2.20 $3.00 $6.80 71 198
3 4 $0.00 $2.65 $0.85 $7.50 $11.80
62 1 $0.00 $0.40 $0.20 $12.50 $16.80
About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Jun 3, 2026–Sep 11, 2026; 8 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1426800 CUSIP 045396207 13F (30d) 50 filings 50 filers Visit website Investor relations