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Westlake Corporation WLK 66.28 -1.62 -2.39%

Previous-day view · Thu Nov 5 close. You are previewing the previous trading day. Subscribe to see today live and every other date — Trader is $59/mo. Sign up Sign in

Expected move

November 05, 2026 close · $66.35
Horizon Expected move Typical range 2 in 3 closes 9 in 10 closes
Next session ±1.8% ±$1.21 $65.14 – $67.56 $64.90 – $67.81 $63.76 – $68.95
2 sessions ±2.5% ±$1.68 $64.67 – $68.03 $64.32 – $68.39 $62.72 – $69.98
3 sessions ±3.2% ±$2.12 $64.24 – $68.47 $63.82 – $68.88 $61.84 – $70.86
1 week ±4.1% ±$2.70 $63.66 – $69.05 $63.06 – $69.64 $60.62 – $72.09
2 weeks ±5.7% ±$3.78 $62.58 – $70.13 $61.68 – $71.02 $58.29 – $74.41
3 weeks ±7.0% ±$4.68 $61.67 – $71.03 $60.53 – $72.17 $56.47 – $76.24
1 month ±8.4% ±$5.58 $60.78 – $71.93 $59.39 – $73.31 $54.53 – $78.17
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
±10.49%
Average actual move
8.87%
Beyond the implied move
0 / 2
Reaction session Implied Actual Used ATM IV before → after
May 05, 2026 ±9.01% -8.78% 0.97× —
August 05, 2025 ±11.97% +8.96% 0.75× —
Reconstructed from archived mid quotes; the straddle covers its expiration, not only the reaction session. These are not option returns. Method and missing reports →