Everyone knows the line. "Be fearful when others are greedy." So when the Crypto Fear and Greed Index, a 0 to 100 gauge of crowd mood, lights up red hot at 75 or above, the instinct is to sell. We wanted to know if the instinct is correct.

So we ran the mirror image of our fear study. We pulled the full Fear and Greed history and Bitcoin daily closes from February 2018 to June 2026. We marked every first day the index climbed into greed, at 75 and higher, and deduped them so a fresh signal only counted once the crowd had cooled back below 60. Then we measured what Bitcoin did over the next 7, 30, and 90 days, and compared it against the average of every single day in the sample.

Here is the one nugget that breaks the reflex. On a normal day in this window, Bitcoin closed higher 7 days later 52.6 percent of the time. After the crowd flipped to greed, it closed higher 72.2 percent of the time, with an average 7 day gain of nearly 5 percent. The greed reading did not mark the top. It marked the middle of a move. The question is why, and that is where it gets interesting.