symbol log-returns vs benchmark (default SPY) log-returns over time_period bars. Range -1..+1. Useful for diversification analysis and pairs-trading screen.x-api-key: ********************curl --location '/api/v1/indicators/correl?symbol=undefined&benchmark=undefined&time_period=undefined&interval=undefined&range=undefined&outputsize=undefined' \
--header 'x-api-key: <api-key>'null