Coinbase Global Inc (NASDAQ:COIN) stock's fall from its July 18 record peak of $444.64 was made worse by an August 1 post-earnings bear gap of 16.7%. For those betting on a short-term comeback, however, shares of the cryptocurrency exchange are flashing a historically bullish signal. Per Schaeffer's Senior Quantitative Analyst Rocky White, COIN is within 0.75 of the 80-day trendline's 20-day average true range (ATR), after spending at least 80% of the last 10 days and 80% of the last two months above it. Ov ...