What was the weekly return of the bonus basket funds for the week ending October 31st? Fixed income investment fund "Bundash": 0.65% Gold-based investment fund "Golda": -3.8% Silver-based investment fund "Silva": -3.4% Stock investment fund "Fada": -3.2% Petrochemical sector investment fund "Petropadesh": -2% Metals sector investment fund "Plaza": -1.6% Buying and selling of investment funds 24 hours 021-58718 during the day.