What's your expectation for QQQ by year end?

Dec 31 138C is selling for about $6.5 which puts the b/e at $144.5. If you extrapolate the growth since last December, the trend predicts $158 (or $14 upside on about 200% growth on the option price).

What do you all think about this trade? If you favor/suggest a different approach (eg, sell Dec 31 150c for $3.50, buy Dec 31 138 for $6.50), could you provide some working numbers?