argenx SE ARGX
$927.21 +$32.44 (+3.63%)
Market closed · Nov 6, 8:10 pm ET · Last extended-hours $935.99 +0.95%
Open$894.78
Prev close$894.77
Day range$892.36 – $929.88
Volume379.3K
Market cap$58.31B
P/E (TTM)32.1
Dividend yield–
Average implied volatility across the listed chain right now: 46%. 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.
Open interest by strike
Nearest listed expiry only. Calls above the line, puts below — clusters mark strikes where the market has built up the most open positions.
Implied volatility by strike
The “volatility smile”: strikes far from the current price often price in richer implied volatility than at-the-money strikes.
Calls
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 20 Nov 2026 | $930.00 | $17.44 | $27.00/$32.00 | 0 | 82 | 44% |
| 20 Nov 2026 | $920.00 | $20.74 | $32.00/$38.20 | 0 | 134 | 45% |
| 20 Nov 2026 | $940.00 | $14.15 | $22.00/$28.10 | 0 | 81 | 44% |
| 20 Nov 2026 | $910.00 | $24.66 | $36.00/$44.20 | 0 | 9 | 44% |
| 20 Nov 2026 | $950.00 | $16.80 | $18.00/$23.70 | 6 | 69 | 44% |
| 20 Nov 2026 | $900.00 | $29.56 | $44.00/$50.50 | 0 | 114 | 46% |
| 20 Nov 2026 | $960.00 | $8.65 | $14.00/$20.30 | 0 | 19 | 44% |
| 20 Nov 2026 | $890.00 | $34.46 | $49.00/$57.70 | 0 | 48 | 45% |
| 20 Nov 2026 | $970.00 | $11.40 | $11.00/$17.50 | 4 | 2 | 44% |
| 20 Nov 2026 | $880.00 | $40.16 | $58.00/$64.70 | 0 | 48 | 47% |
| 20 Nov 2026 | $980.00 | $5.82 | $8.00/$15.40 | 0 | 39 | 44% |
| 20 Nov 2026 | $870.00 | $45.98 | $66.00/$72.90 | 0 | 13 | 49% |
| 20 Nov 2026 | $990.00 | $4.87 | $5.20/$13.40 | 0 | 138 | 44% |
| 20 Nov 2026 | $860.00 | $52.49 | $72.90/$81.00 | 0 | 107 | 48% |
| 20 Nov 2026 | $1,000.00 | $4.65 | $3.50/$11.80 | 0 | 59 | 44% |
Puts
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 20 Nov 2026 | $930.00 | $50.72 | $28.00/$33.90 | 0 | 4 | 44% |
| 20 Nov 2026 | $920.00 | $43.99 | $23.00/$28.30 | 0 | 54 | 44% |
| 20 Nov 2026 | $940.00 | $57.46 | $33.00/$39.60 | 0 | 149 | 44% |
| 20 Nov 2026 | $910.00 | $37.88 | $18.00/$24.40 | 0 | 13 | 44% |
| 20 Nov 2026 | $950.00 | $64.66 | $39.00/$45.50 | 0 | 1 | 44% |
| 20 Nov 2026 | $900.00 | $32.76 | $14.00/$20.90 | 0 | 53 | 44% |
| 20 Nov 2026 | $960.00 | $72.08 | $45.00/$52.00 | 0 | 16 | 44% |
| 20 Nov 2026 | $890.00 | $27.65 | $11.00/$18.20 | 0 | 83 | 45% |
| 20 Nov 2026 | $970.00 | $80.26 | $52.00/$57.30 | 0 | 0 | 42% |
| 20 Nov 2026 | $880.00 | $23.35 | $8.00/$15.80 | 0 | 49 | 45% |
| 20 Nov 2026 | $980.00 | $89.36 | $59.00/$66.00 | 0 | 4 | 43% |
| 20 Nov 2026 | $870.00 | $9.70 | $6.00/$13.50 | 36 | 50 | 46% |
| 20 Nov 2026 | $990.00 | $98.48 | $67.00/$75.20 | 0 | 1 | 44% |
| 20 Nov 2026 | $860.00 | $8.50 | $4.00/$11.70 | 1 | 48 | 47% |
| 20 Nov 2026 | $1,000.00 | $108.28 | $75.00/$83.70 | 0 | 17 | 44% |
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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