According to recent data from COINOTAG as of November 21st, the total Bitcoin (BTC) open interest in futures contracts across all platforms has surged to an impressive 643,200 BTC, equating to approximately $6.27 billion. This marks a significant milestone, representing a 24-hour increase of 9.48%. In particular, the Chicago Mercantile Exchange (CME) leads with a BTC futures open interest of 211,100 BTC, valued at around $2.055 billion, reflecting a robust 24-hour growth of 10.04%. Meanwhile, Binance is positioned as the second largest contributor, reporting an open interest of 122,700 BTC, translating to about $1.1964 billion, and registering a notable 24-hour increase of 10.67%. This uptick in open interest highlights the growing institutional interest and market confidence in Bitcoin derivatives.