Investors are betting on a turnaround for this troubled real estate technology player. Animal spirits have returned to the stock market in a big way. Stocks are ripping higher left and right, with investors as optimistic as they have been in years. Opendoor Technologies (OPEN 42.67%) is the latest example of this theme, with the left-for-dead real estate company soaring over 300% in the last month. The highly shorted stock was recently trading below $1.00 but is now at $2.25 a share even though the company ...