You are told to use the CAPM and predict the return of a zero beta portfolio tomorrow. You are then told that the market will go up by 1% tomorrow (and know this information is correct- the market WILL, in fact, go up by 1% tomorrow). How does this effect your prediction?

The portfolio will have a 1% higher return tomorrow as the market will go up by 1% tomorrow.
		The portfolio will have a 1% lower return tomorrow as the market will go up by 1% tomorrow, and the portfolio is zero beta.
		It depends on other unlisted factors.
		It doesn't effect my prediction.