A trader is looking for a comeback in SunPower (SPWRB) after accounting worries in a Solar sector that has been performing rather well, despite the pullback in oil prices. The strategist bought the January $17.50/$25 call spread for $2.50 on 1,500 contracts Monday for a potential $5 profit per spread. Implied volatility of 63% is only at the 10 percentile, so relatively cheap. If shares can climb above $20 we could see shorts get squeezed for a gap fill to $23.45. Shares are now trading 11.9X earnings and 4.4X cash for an established solar panel manufacturer that is beaten down