{"slug":"concentration-risk","qid":"drawdown_compare","label":"Maximum drawdown: deepest peak-to-trough drop over the last year","post_title":"The Real Risk of One Stock","post_url":"/blog/concentration-risk#q-drawdown_compare","columns":["ticker","max_drawdown_pct"],"rows":[{"ticker":"KO","max_drawdown_pct":8.5},{"ticker":"SPY","max_drawdown_pct":9.1},{"ticker":"JNJ","max_drawdown_pct":10.9},{"ticker":"PG","max_drawdown_pct":16.1},{"ticker":"NVDA","max_drawdown_pct":20.3},{"ticker":"TSLA","max_drawdown_pct":39.1},{"ticker":"PLTR","max_drawdown_pct":48.3}],"shape":"ranking","sql":"SELECT ticker,\n       round(abs(min(c / peak - 1)) * 100, 1) AS max_drawdown_pct\nFROM (\n    SELECT ticker, dt, c,\n           max(c) OVER (PARTITION BY ticker ORDER BY dt\n                        ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS peak\n    FROM (\n        SELECT ticker,\n               toDate(toTimeZone(window_start, 'America/New_York')) AS dt,\n               argMax(toFloat64(close), toTimeZone(window_start, 'America/New_York')) AS c\n        FROM global_markets.delayed_stocks_minute_aggs\n        WHERE ticker IN ('SPY', 'KO', 'JNJ', 'PG', 'NVDA', 'TSLA', 'PLTR')\n          AND window_start >= now() - INTERVAL 400 DAY\n          AND (toHour(toTimeZone(window_start, 'America/New_York')) * 60\n               + toMinute(toTimeZone(window_start, 'America/New_York'))) BETWEEN 570 AND 959\n        GROUP BY ticker, dt\n    )\n    WHERE dt >= today() - 370\n)\nGROUP BY ticker\nORDER BY max_drawdown_pct","computed_at":"2026-08-22T04:04:11.902735+00:00","elapsed":2.533755063}