{"slug":"what-is-option-delta","qid":"trace_delta","label":"The $740 call's delta follows SPY across the strike","post_title":"What Is Option Delta? A Plain-English Guide","post_url":"/blog/what-is-option-delta#q-trace_delta","columns":["date","spy_price","delta"],"rows":[{"date":"2026-05-01","spy_price":720,"delta":0.327},{"date":"2026-05-04","spy_price":717.76,"delta":0.294},{"date":"2026-05-05","spy_price":726.46,"delta":0.381},{"date":"2026-05-06","spy_price":733,"delta":0.47},{"date":"2026-05-07","spy_price":731.44,"delta":0.45},{"date":"2026-05-08","spy_price":737.82,"delta":0.519},{"date":"2026-05-11","spy_price":739.28,"delta":0.533},{"date":"2026-05-12","spy_price":736.67,"delta":0.504},{"date":"2026-05-13","spy_price":743.57,"delta":0.58},{"date":"2026-05-14","spy_price":747.65,"delta":0.619},{"date":"2026-05-15","spy_price":737.34,"delta":0.508},{"date":"2026-05-18","spy_price":738.89,"delta":0.524},{"date":"2026-05-19","spy_price":734.25,"delta":0.461},{"date":"2026-05-20","spy_price":738.3,"delta":0.514},{"date":"2026-05-21","spy_price":744.13,"delta":0.596},{"date":"2026-05-22","spy_price":743.73,"delta":0.581},{"date":"2026-05-26","spy_price":750.85,"delta":0.682},{"date":"2026-05-27","spy_price":750.05,"delta":0.671},{"date":"2026-05-28","spy_price":755.1,"delta":0.747},{"date":"2026-05-29","spy_price":755.64,"delta":0.746},{"date":"2026-06-01","spy_price":756.58,"delta":0.741},{"date":"2026-06-02","spy_price":759.63,"delta":0.809},{"date":"2026-06-03","spy_price":750.55,"delta":0.663},{"date":"2026-06-04","spy_price":754.56,"delta":0.732},{"date":"2026-06-05","spy_price":735.36,"delta":0.442},{"date":"2026-06-08","spy_price":738.72,"delta":0.495},{"date":"2026-06-09","spy_price":735.7,"delta":0.438},{"date":"2026-06-10","spy_price":722.88,"delta":0.241},{"date":"2026-06-11","spy_price":739.48,"delta":0.505},{"date":"2026-06-12","spy_price":742.45,"delta":0.587},{"date":"2026-06-15","spy_price":753.91,"delta":0.837}],"shape":"series","sql":"SELECT date,\n       round(avg(underlying_close), 2) AS spy_price,\n       round(avg(delta), 3) AS delta\nFROM global_markets.options_greeks\nWHERE ticker = 'O:SPY260618C00740000' AND date BETWEEN '2026-05-01' AND '2026-06-17' AND implied_volatility > 0.02\nGROUP BY date ORDER BY date","computed_at":"2026-07-15T06:07:49.060477+00:00","elapsed":0.001743858}