Traders on the “Who will die in Avengers: Doomsday?” market are reacting to the December 18, 2026 release and recent marketing that underscores the multiverse saga’s high stakes. The Russo-directed crossover pits Avengers, Fantastic Four, and X-Men heroes against Robert Downey Jr.’s Doctor Doom amid collapsing realities, fueling speculation about sacrificial deaths to raise tension before the 2027 Secret Wars sequel. Loki currently leads implied probabilities, followed by Thor, Spider-Man, and Steve Rogers, as traders weigh narrative arcs, prior MCU “deaths,” and unconfirmed rumors of major battles or off-screen fatalities. Doctor Doom trades at single digits, reflecting expectations he survives. No official cast or plot details confirm outcomes, leaving sentiment driven by trailer imagery, game tie-ins, and historical patterns rather than verified reports. Additional footage or cast interviews could shift odds ahead of opening weekend.