NYXBT: https://www.nyse.com/quote/index/NYXBT https://www.nyse.com/quote/index/NYXBT Methodology: https://www.nyse.com/publicdocs/nyse/indices/NYSE_Bitcoin_Ind

NYXBT: https://www.nyse.com/quote/index/NYXBT https://www.nyse.com/quote/index/NYXBT Methodology: https://www.nyse.com/publicdocs/nyse/indices/NYSE_Bitcoin_Index_Methodology.pdf https://www.nyse.com/publicdocs/nyse/indices/NYSE_Bitcoin_In... It's apparently calculated once a day within two hours of 4 PM UK time (GMT +1) and relies on one source: Coinbase Exchange. The methodology is scheduled to be reviewed four times a year.