Compute all Key Ratios from raw statements, eliminating FMP ratio calls

Added compute_ttm_ratios() which derives all 16 TTM ratios directly from
yfinance quarterly income statements, balance sheets, and cash flow:

  Valuation:  P/E, P/S, P/B, EV/EBITDA, EV/Revenue
  Profitability: Gross/Operating/Net Margin, ROE, ROA, ROIC
  Leverage:  D/E, Current Ratio, Quick Ratio, Interest Coverage
  Dividends: Yield, Payout Ratio

get_key_ratios() no longer calls FMP's /ratios-ttm or /key-metrics-ttm
endpoints, saving ~2 FMP API calls per ticker load (including each Comps
peer). Forward P/E still comes from yfinance info dict (analyst estimate).

This also fixes EV/EBITDA for all tickers (DDOG was 4998x from FMP/yfinance
pre-computed values, now correctly 194x from income statement EBITDA).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 18 insertions, 29 deletions

diff --git a/components/valuation.py b/components/valuation.py
index e77073f..7ac32f5 100644
--- a/components/valuation.py
+++ b/components/valuation.py
@@ -143,45 +143,34 @@ def _render_ratios(ticker: str):
         st.info("Ratio data unavailable. Check your FMP API key.")
         return
 
-    def r(fmp_key, yf_key=None, fmt=fmt_ratio):
-        val = ratios.get(fmp_key) if ratios else None
-        if val is None and yf_key and info:
-            val = info.get(yf_key)
+    def r(key, fmt=fmt_ratio):
+        val = ratios.get(key) if ratios else None
         return fmt(val) if val is not None else "—"
 
-    # Always compute EV/EBITDA from income statement — both FMP and yfinance's
-    # pre-computed multiples use a bad EBITDA figure for many tickers.
-    def _ev_ebitda() -> str:
-        ev = info.get("enterpriseValue")
-        ebitda = get_ebitda_from_income_stmt(ticker)
-        if ev and ebitda and ebitda > 0:
-            return fmt_ratio(ev / ebitda)
-        return "—"
-
     rows = [
         ("Valuation", [
-            ("P/E (TTM)", r("peRatioTTM", "trailingPE")),
-            ("Forward P/E", fmt_ratio(info.get("forwardPE")) if info.get("forwardPE") is not None else "—"),
-            ("P/S (TTM)", r("priceToSalesRatioTTM", "priceToSalesTrailing12Months")),
-            ("P/B", r("priceToBookRatioTTM", "priceToBook")),
-            ("EV/EBITDA", _ev_ebitda()),
-            ("EV/Revenue", r("evToSalesTTM", "enterpriseToRevenue")),
+            ("P/E (TTM)", r("peRatioTTM")),
+            ("Forward P/E", r("forwardPE")),
+            ("P/S (TTM)", r("priceToSalesRatioTTM")),
+            ("P/B", r("priceToBookRatioTTM")),
+            ("EV/EBITDA", r("enterpriseValueMultipleTTM")),
+            ("EV/Revenue", r("evToSalesTTM")),
         ]),
         ("Profitability", [
-            ("Gross Margin", r("grossProfitMarginTTM", "grossMargins", fmt_pct)),
-            ("Operating Margin", r("operatingProfitMarginTTM", "operatingMargins", fmt_pct)),
-            ("Net Margin", r("netProfitMarginTTM", "profitMargins", fmt_pct)),
-            ("ROE", r("returnOnEquityTTM", "returnOnEquity", fmt_pct)),
-            ("ROA", r("returnOnAssetsTTM", "returnOnAssets", fmt_pct)),
+            ("Gross Margin", r("grossProfitMarginTTM", fmt=fmt_pct)),
+            ("Operating Margin", r("operatingProfitMarginTTM", fmt=fmt_pct)),
+            ("Net Margin", r("netProfitMarginTTM", fmt=fmt_pct)),
+            ("ROE", r("returnOnEquityTTM", fmt=fmt_pct)),
+            ("ROA", r("returnOnAssetsTTM", fmt=fmt_pct)),
             ("ROIC", r("returnOnInvestedCapitalTTM", fmt=fmt_pct)),
         ]),
         ("Leverage & Liquidity", [
-            ("Debt/Equity", r("debtToEquityRatioTTM", "debtToEquity")),
-            ("Current Ratio", r("currentRatioTTM", "currentRatio")),
-            ("Quick Ratio", r("quickRatioTTM", "quickRatio")),
+            ("Debt/Equity", r("debtToEquityRatioTTM")),
+            ("Current Ratio", r("currentRatioTTM")),
+            ("Quick Ratio", r("quickRatioTTM")),
             ("Interest Coverage", r("interestCoverageRatioTTM")),
-            ("Dividend Yield", r("dividendYieldTTM", "dividendYield", fmt_pct)),
-            ("Payout Ratio", r("dividendPayoutRatioTTM", "payoutRatio", fmt_pct)),
+            ("Dividend Yield", r("dividendYieldTTM", fmt=fmt_pct)),
+            ("Payout Ratio", r("dividendPayoutRatioTTM", fmt=fmt_pct)),
         ]),
     ]