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ProShares UltraShort NASDAQ Biotechnology BIS 11.53 -0.26 -2.24%

BIS Options Support & Resistance

BIS (ProShares UltraShort NASDAQ Biotechnology): Explore options-derived support and resistance levels, call walls and put walls. Free delayed preview.

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ATM IV
0.725
Put Call Ratio (OI)
0.364
Put Call Ratio (Vol)
0.75
IV Rank
5.34
IV Percentile
46
Max Pain
16

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)

$16 Put Wall $17 Call Wall $19 Key Put Strike 3 $21 Key Put Strike 1