THE TOOL FOR CURRENT VALUATION MULTIPLES. Omit as_of_date and it returns TODAY'S P/E, P/S, P/B, EV/EBITDA, EV/Revenue and FCF yield, computed from the latest EOD close and the latest TTM financials. Use it for any "what is X's P/E " / "how is X valued right now" question — never derive a multiple yourself by dividing a price by an earnings figure; that is exactly the arithmetic the provenance contract forbids. Pass as_of_date to get the same snapshot on a specific historical date — zero look-ahead bias (the 'Compustat + CRSP merge' pattern). The EOD close is sourced from stock_price_daily.parquet at as_of_date (or the nearest prior trading day), and all financial figures come from SEC filings with accepted_at ≤ as_of_date so no future information is used. TTM financials are computed by summing the four most recent standalone-quarter values (or using the most recent FY filing when no quarterly series is available). Returns: price snapshot (close, price_date, is_exact_date_match), TTM P&L (revenue, gross_profit, operating_income, EBITDA, net_income, OCF, CapEx, FCF), balance sheet snapshot (shares, cash, debt, book equity), derived market values (market_cap, enterprise_value), valuation multiples (P/E, P/S, P/B, EV/EBITDA, EV/Revenue, FCF yield %), and TTM margins (gross, operating, net). Use for: historical valuation screens, backtesting entry-point multiples, forensic audit of peak / trough valuations, comparing a company's current multiples to its own history. Coverage follows your plan tier: full = all companies & full history, pro = all companies & last 15 years, sp500 = S&P 500 only, sample = S&P 500 & last 5 years. Available on all plans.