Open Interest Distribution
Open interest distribution refers to the total number of outstanding derivative contracts that have not been settled, categorized by their strike prices and expiration dates. This metric provides insight into where market participants have placed their capital and where potential support or resistance levels may form.
In options trading, a high concentration of open interest at specific strikes can act as a magnet for price action, especially as expiration approaches. Market makers often hedge based on the total open interest across the entire chain.
By mapping this distribution, analysts can infer the aggregate gamma exposure of the market. This is particularly useful in identifying pin risk, where the underlying price tends to gravitate toward a strike with heavy open interest.
It serves as a key indicator of market sentiment and potential future liquidity constraints.