ARGX Moves

argenx SE American Depositary Shares ARGX 894.77 -36.61 -3.93%

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Expected move

November 05, 2026 close · $894.77

Horizon	Expected move	Typical range	2 in 3 closes	9 in 10 closes
Next session	±1.9% ±$16.91	$877.86 – $911.68	$874.46 – $915.08	$858.53 – $931.01
2 sessions	±2.6% ±$23.44	$871.33 – $918.21	$866.32 – $923.22	$844.13 – $945.41
3 sessions	±3.3% ±$29.53	$865.24 – $924.30	$859.52 – $930.02	$831.78 – $957.76
1 week	±4.2% ±$37.58	$857.19 – $932.35	$848.78 – $940.76	$814.69 – $974.85
2 weeks	±5.9% ±$52.70	$842.07 – $947.47	$829.54 – $960.00	$782.21 – $1007.33
3 weeks	±7.4% ±$66.30	$828.47 – $961.07	$812.27 – $977.27	$754.65 – $1034.89
1 month	±8.9% ±$79.90	$814.87 – $974.67	$795.00 – $994.54	$725.30 – $1064.24

Size, not direction. The 68% and 90% bands held 66–68% and 89–90% of closes in held-out years 2019–2026. Draw the cone on the chart →

Volatility premium

Beta

The forecast is for the current session, which this plan does not open.

Earnings: priced against what happened

Average implied move

±6.59%

Average actual move

5.57%

Beyond the implied move

1 / 2

Median IV change

-24.66%

Reaction session	Implied	Actual	Used	ATM IV before → after
May 07, 2026	±6.63%	-2.51%	0.38×	52.5% → 37.2%
May 08, 2025	±6.56%	-8.64%	1.32×	—

Reconstructed from archived mid quotes; the straddle covers its expiration, not only the reaction session. These are not option returns. Method and missing reports →