[limpeh394]

Don't understand why it maters whether you buy 500 or 2000, if total is $100K anyway???

Don't see the difference when total amount  is the same

Say a normal stock now at cost $50 U can buy 2000 shares. It goes up to $51 or 2% on the same day. U could made $1x2000 = $2000 the day.

But assume QQQ cost $500,  u can only buy 500 shares.  the problem with QQQ/SPY seldom goes move 2% daily