The risk model changes implied position in the SP500 futures from -0.5 to -1.0, and in the Nikkei225 futures, from 1.0 to 0.5, at market close (locally) on 1 May 2024.
Implied risk positions are from then on:
US (SP500): -1.0
EU (Estoxx50): -1.0
Japan (Nikkei225): 0.5
Fixed Income (US 10y TN): 1.0