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CLDX · Celldex Therapeutics, Inc. · Options Chain

Track CLDX — free
$36.90 -1.20 (-3.15%) At close · Sep 11
Market Cap
$2.90B
Shares
78.53M

Options Chain

Underlying $36.90 · at close Sep 11, 2026 Options Calculator

Positioning

Sep 18, 2026 · 6 days to expiry · 74 contracts · mixed daily-bar sessions · May 15, 2026–Sep 11, 2026; 23 unknown
Put / call OI
1.67
Put-heavy positioning
Open interest
368
as of Sep 10, 2026
Volume
dated and unknown daily-bar sessions
Max pain
$40.00
$3.10 above spot
ATM implied vol
143.1%
market's expected move

Open interest by strike · near the money

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
$20.30 $24.50 $0.10 $0.00 $4.80 1 2
$17.30 $21.50 $0.45 $0.00 $4.80 1 7
$16.40 $20.50 $0.20 $0.00 $4.80 1 6
$15.30 $19.50 $0.20 $0.00 $4.80 1 13
$14.40 $18.50 $0.25 $0.00 $4.80 1 2
$13.30 $17.50 $0.65 $0.00 $3.40 1 1
$12.40 $16.50 $0.35 $0.00 $4.80 1 5
15 10 $11.40 $15.50 $12.53 $0.85 $0.00 $4.80 1 3
3 3 $10.30 $14.50 $7.50 $0.65 $0.00 $4.80 1 6
$9.40 $13.50 $0.40 $0.00 $4.80 1 4
2 2 $8.40 $12.50 $6.90 $0.75 $0.00 $4.80 1 1
$7.40 $11.50 $0.95 $0.00 $4.20 1 1
$6.40 $10.50 $1.10 $0.00 $4.80 1 1
$5.50 $9.50 $0.95 $0.00 $4.80 1 7
153.5% 0.838 $4.70 $8.50 $4.00 $0.00 $4.80 4 4
189.7% 0.761 $4.70 $8.00 $1.30 $0.00 $2.95 1 2
4 4 161.3% 0.741 $3.50 $7.00 $7.15 $0.60 $0.65 $1.00 -0.22 127.1% 14 57
1 1 145.7% 0.704 $2.70 $6.00 $5.30 $0.80 $0.05 $3.60 -0.313 169.6% 3 12
5 1 133.2% 0.655 $2.15 $4.90 $3.33 $1.60 $0.80 $1.90 -0.334 118.6% 1 5
6 5 133.6% 0.592 $1.05 $4.90 $8.66 $2.15 $1.05 $4.90 -0.411 183.7% 1 1
3 1 169.1% 0.539 $1.40 $4.90 $6.30 $1.28 $1.10 $3.40 -0.476 117.2% 1 4
3 2 185.2% 0.499 $1.15 $4.90 $2.71 $2.38 $1.75 $3.70 -0.551 112.1% 6 11
2 2 187% 0.457 $0.35 $5.00 $2.61 $1.85 $1.80 $4.90 -0.623 111.2% 3 3
45 2 163.4% 0.391 $0.10 $3.70 $2.19 $3.00 $2.25 $5.00 -0.754 84.1% 4 9
8 1 $0.00 $3.10 $1.00 $3.30 $2.00 $6.40 -0.904 60.8% 1 1
6 1 $0.00 $2.60 $1.47 $3.98 $3.00 $6.80 1 31
4 1 $0.00 $2.20 $1.30 $4.61 $3.50 $8.10 1 1
2 1 $0.00 $4.80 $1.45 $4.50 $9.10
6 4 $0.00 $4.80 $1.10 $5.50 $9.90
1 1 $0.00 $4.80 $1.55 $6.90 $6.50 $10.90 30 30
1 1 $0.00 $1.35 $0.39 $7.50 $11.80
5 5 $0.00 $4.80 $0.80 $8.50 $12.90
2 1 $0.00 $4.80 $1.10 $9.50 $13.90
$0.00 $4.80 $10.50 $14.90
6 1 $0.00 $2.15 $0.40 $15.50 $20.00
7 1 $0.00 $4.50 $0.45 $20.50 $25.00
1 1 $0.00 $0.20 $0.20 $25.50 $29.70
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 · May 15, 2026–Sep 11, 2026; 23 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. The 25 strikes around the money are shown by default — switch to "All 37" 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 744218 CUSIP 15117B202 13F (30d) 140 filings 140 filers Visit website Investor relations