Position Sizing

See: Portfolio Weight.

When you size a position, you're determining how much of it you want in your portfolio. Since you get measured against an index (like NASDAQ, or some hybrid), if that index has, say 2.8% AMZN, then to be sized neutral to AMZN performance, you'd have 2.8% of your portfolio allocated to owning AMZN stock. You re-size it all the time, but for this month, if you're equal weight AMZN, then you're neutral to whether the stock goes up or down. Size AMZN at a zero weight position, i.e. it's not in your portfolio at all, then you are, effectively, relatively short AMZN. Make it a 5.6 percent position, and you double-weight the greatest retailer on earth.

Your call. Your bogey. Your prayers that things work out.