open interest

Open interest (OI) tracks the number of outstanding options contracts and is a key signal in options-market analysis. On WindowsForum, discussions around open interest focus on interpreting OI changes alongside volume to distinguish new positions from closing trades. A featured thread examines TipRanks data for notable open interest changes on February 4, highlighting institutional structuring, hedging, and directional positioning in MSFT options. The analysis warns against treating OI alerts as direct trade instructions, emphasizing the need for context. Topics include options chain data, volume analysis, and the role of OI in assessing market sentiment and large trader activity.