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:

Oscar201902241930

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

Best Picture

Best Director

Leading Actor

Leading Actress

Supporting Actor

Supporting Actress

Original Screenplay

Adapted Screenplay

Documentary Feature

Documentary Short

Animated Feature

Animated Short

Foreign Language

Live Action Short

Original Song

Original Score

Sound Mixing

Sound Editing

Visual Effect

Production Design

Film Editing

Cinematography

Costume Design

Makeup and Hairstyling