The Call Wall is the strike with the largest net positive Gamma in the underlying stock/ETF. It can act as resistance, indicating where sellers may enter the market.
The Call Wall level lets you know where support lies for a stock, and a change in the price of the Call Wall can help you can manage your risk while either long or short. A shift higher is often a bullish signal while a shift lower in the Call Wall is a bearish signal.
Visit our Support Center here for our glossary and additional FAQ’s.