Quote from PersistentTradr:
Hey Pekelo,
Short answer is it's what I'm comfortable with. I trade 1 contract for each $7,500 of equity available in the account. The position size is adjusted as the equity in the account rises and falls. I use $7,500 because it supports my risk per trade amount which is approx. 1% of equity.
Tx for following and posting your question!
PT