After Bo Nix's season-ending injury, Jarrett Stidham is suddenly the Broncos' starting quarterback for the AFC Championship. His unexpected promotion has sent the sports card market into a frenzy, with Card Ladder reporting a staggering 788% week-over-week value spike for his collectibles.

Stidham, a 2019 fourth-round pick, hasn't started a game in over two years. His career is now defined by a single playoff start, creating a classic 'prospecting' opportunity for collectors. One seller moved a rookie patch autograph for $2,000 hours after the injury news, a price far below his 2020 peak but indicative of sudden demand.

The market's frenzy hinges on performance. While Stidham's historical stats are modest, a deep playoff run could dramatically alter his card's perceived value. With the Broncos as underdogs against New England, his immediate future—and his collectors' investments—rest entirely on Sunday's outcome.