New York (CNN Business) Should I really sell stocks in May and go away like that old Wall Street saying suggests?

No! One of the worst things that an investor can do is try and time the market. Staying fully invested makes much more sense.

Yes, the market historically does better in the fourth quarter. Returns have tended to be solid from October through December as investors anticipate strong sales and profits for Corporate America during the holiday months.

And, sure, this May is off to a rocky start because of US-China trade tension. But it's a myth that stocks will definitely fall during the supposedly sleepy summer months as traders head to the beach.

Earnings, trade and the Fed matter more than the calendar