Interface PerformanceMetrics

interface PerformanceMetrics {
    ts: string;
    portfolio_id: string;
    total_value: number;
    cash_balance?: number | null;
    invested_value?: number | null;
    cost_basis?: number | null;
    total_pnl: number;
    total_pnl_pct: number;
    daily_pnl?: number | null;
    daily_pnl_pct?: number | null;
    daily_return?: number | null;
    mtd_return?: number | null;
    ytd_return?: number | null;
    inception_return?: number | null;
    sharpe_ratio_30d?: number | null;
    sharpe_ratio_90d?: number | null;
    max_drawdown_30d?: number | null;
    current_drawdown?: number | null;
    volatility_30d?: number | null;
    position_count?: number | null;
    sector_count?: number | null;
    largest_position_pct?: number | null;
    cash_pct?: number | null;
    benchmark_return?: number | null;
    alpha?: number | null;
    beta?: number | null;
    snapshot_type?: "EOD" | "INTRADAY" | "WEEKLY" | "MONTHLY";
}