I'm a scalper and a piker.  I judge which way the wind is blowing by the 8/21 EMA on the daily.  Then I switch to 5 min chart and play to opening with the wind.  I done by 11:00 am EST.  Today I was done in 5 minutes.  Up solid.  $AAPL  $QQQ.  Also, watch $SPY and $TSLA