# skfolio.measures.worst_realization ### skfolio.measures.worst_realization(returns) Compute the worst realization (worst return). * **Parameters:** **returns** *ndarray of shape (n_observations,) or (n_observations, n_assets)* : Array of return values. * **Returns:** **value** *float or ndarray of shape (n_assets,)* : Worst realization. If `returns` is a 1D-array, the result is a float. If `returns` is a 2D-array, the result is a ndarray of shape (n_assets,). ### Notes NaN handling: - Unweighted: NaNs are ignored; all-NaN inputs yield NaN. - Weighted: NaNs propagate.