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iShares MSCI USA Size Factor SIZE 177.9 1.54 0.87%

SIZE Options Support & Resistance

SIZE (iShares MSCI USA Size Factor): Explore options-derived support and resistance levels, call walls and put walls. Free delayed preview.

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ATM IV
0.142
Put Call Ratio (OI)
Put Call Ratio (Vol)
IV Rank
26.5
IV Percentile
35.4
Max Pain
179

Option Walls

A gamma wall is a strike where dealer gamma is concentrated.

Price often pauses or reverses there because dealers must hedge aggressively when the underlying crosses it. Walls above spot tend to act as resistance; walls below spot tend to act as support.

See also: Gamma exposure (GEX)

$165 Key Put Strike 2 $179 Put Wall