This page has the Betfair prices for the 2019 Oscars. Historically, prediction markets are well calibrated and get 19-20 of 24 in binary correct.
Live blog. Final pre-show market:
Picture, Director, Actor, Actress, Supporting Actor, Supporting Actress
Original & Adapted Screenplay
Documentary (Feature & Short), Animated (Feature & Short), Foreign Language, Live Action Short
Original Song & Score
Sound Mixing, Sound Editing, Visual Effects, Production Design, Film Editing, Cinematography, Costume Design, Makeup and Hairstyling