Phillips 66 (PSX) Options Open Interest

Monitoring PSX open interest helps you see where real money is positioned on Phillips 66's options and which strikes are attracting the most commitment from traders. Phillips 66's open interest reflects the total number of outstanding contracts that have not been closed or exercised, making it a powerful gauge of liquidity, conviction, and potential support and resistance zones. Use our scanner to monitor PSX options open interest in real time and find the strikes that matter.

Open interest is distinct from volume: volume counts how many contracts are traded in a session, while open interest counts how many remain open at the end of the day. Rising PSX options open interest alongside rising volume suggests new positions are being built, while falling open interest signals positions are being closed. Heavy open interest at specific strikes often acts as a magnet near expiration and can hint at where dealers and large traders expect Phillips 66 to settle.

Phillips 66 operates as an energy manufacturing and logistics company. It operates through four segments: Midstream, Chemicals, Refining, and Marketing and Specialties (M&S). The Midstream segment transports crude oil and other feedstocks; delivers refined petroleum products to market; provides terminaling and storage services for crude oil and refined petroleum products; transports, stores, fractionates, exports, and markets natural gas liquids; provides other fee-based processing services; and gathers, processes, transports, and markets natural gas. The Chemicals segment produces and markets ethylene and other olefin products; aromatics and styrenics products, such as benzene, cyclohexane, styrene, and polystyrene; and various specialty chemical products, including organosulfur chemicals, solvents, catalysts, and chemicals used in drilling and mining.

The Refining segment refines crude oil and other feedstocks into petroleum products, such as gasolines, distillates, aviation, and renewable fuels at 12 refineries in the United States and Europe. The M&S segment purchases for resale and markets refined petroleum products, including gasolines, distillates, and aviation fuels primarily in the United States and Europe. This segment also manufactures and markets specialty products, such as base oils and lubricants. The company was founded in 1875 and is headquartered in Houston, Texas.

Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where PSX open interest is concentrated. Our scanner maps Phillips 66's open interest across every strike and expiry, flags unusual buildups, and lets you drill into the contracts that institutional money is actually holding. Trade Phillips 66's options open interest as the signal it is, not as an afterthought.