DayTraderNYC,
You can daytrade Emini S&P 500 (ES) and Nasdaq 100 futures(NQ) instead. ES = 500 SPY ; NQ = 800 QQQ.
Benefits: Lower commissions, lower margin, more liquidity, less partial fills, tighter spreads, longer trading hours (almost 24/7), electronic execution, no middleman (Market makers etc.), unfragmented market - no routing issues, no minimum $25k daytrading requirement, no additional expenses when shorting etc...
For example: one can daytrade 1 NQ (= 800 QQQ) , with only $1500 daytrading margin and $2.40 commission or less. While daytrading the same, through 800 QQQ, one will need at least $6000 margin and will pay usually over $6.50 in commissions.
To sum up, it's more efficient to daytrade Emini futures NQ and ES then the corresponding QQQ and SPY.
Many daytrade NQ and ES for a living, hence they've found a way to trade them profitably.
Fohat