**SpaceX's September 2026 launch cadence faces constraints from operational shifts and testing priorities, supporting the market's strong lean toward fewer than 12 total orbital launches.** With Starlink missions largely relocated to Vandenberg for Falcon 9 operations while Cape Canaveral focuses on Starship preparations, the company has executed or scheduled only a handful of flights early in the month, including Starlink Group 15-23 on September 2 and 15-24 on September 6. Confirmed or near-term missions include USSF-153 on September 10, the O3b mPOWER triplet on September 13, Crew-13 later in the month, and Starship Flight 14 targeted around mid-September. Trader consensus reflected in the 71.5% implied probability for under 12 launches accounts for typical risks of weather scrubs, booster turnaround limits, and the experimental nature of Starship flights, which often slip. Reaching 12 or more would require an aggressive pace of additional Starlink or rideshare missions without major interruptions, a scenario traders view as less likely amid the current East Coast transition.