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State Street SPDR Portfolio Corporate SPBO 28.1 0.04 0.14%

SPBO Options Support & Resistance

SPBO (State Street SPDR Portfolio Corporate): Explore options-derived support and resistance levels, call walls and put walls. Free delayed preview.

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ATM IV
0.15
Put Call Ratio (OI)
0.25
Put Call Ratio (Vol)
0.286
IV Rank
22.2
IV Percentile
34.4
Max Pain
29

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)

$29 Put Wall $30 Call Wall