SolarCity (SCTY) has been one of the hottest alternative energy stocks since its Initial Public Offering five short months ago. Yesterday it shot up 24% in one day, on the largest one-day volume since it opened, in anticipation of its quarterly earnings release. It is up 95% in the past three months, and has more than tripled from its initial trading price. As of this writing SCTY has given back about a third of yesterday's stratospheric gains.