Fibonacci is useful only because so many people use it, creating dense clusters of orders.
The 0.382 level tells you whether the trend is still intact; 0.5 marks the balance between bulls and bears; 0.618 is make-or-break.
Don’t use 0.382 for a stop-loss; use 0.618—it should be placed where your thesis is invalidated.
Don’t mix timeframes: a daily 0.618 level won’t work for a 15-minute trade. $BTC $ETH