Apple , $AAPL is a cash cow! Today, after the early morning sell off, I targeted a strong based on IV and Avg to DMI . The point I'm making is in a high volatility market, AAPL performs very well with options. I entered a Long Call for DEC Strike 114 when the asking price was just below 112. I use the 15MIN chart for entry, calibrated underlying to my premium Bid entry and the rest is history. Note: Where most scalpers get white knuckled is at the first gain peak - this is a surge upwards (or downwards between 10:15 AM PST to 11 AM PST. Then there is a reversal, and at times a sell off. For risk aversion - watch for a .25% to .30% pull back on price. If it stops here, then you'll see a continuation, as shown with this chart.
PS I forgot to mention that those "spikes" that you're seeing more of, are caused by HFT algorithms getting caught in a price loop. I you see a price consolidation (short-term) then a spike, as show on this chart, that was caused by an HFT algo loop - that had to reset itself by going back to the last known support price that the algo knew of. Purely machine driven pricing.