The Crypto Fear and Greed Index has plunged to 15, entering the "Extreme Fear" zone for the first time since June 10, when it hit 14. The decline marks a sharp deterioration in market sentiment over just one week. The index slid from 32 on November 7 to 18 on November 13 before dropping further to 15 on November 15, reflecting accelerating bearish positioning among crypto traders heading into mid-November.