You may set price alerts for S&P500 Components Stocks(ex:DF/AKS/SVU) and track on the price change every 1 minute.
Note1:Quotes delayed 15 mins.
Note2:You need internet accessibility to receive push notification , also send email when setting alerts in case of notification cant reach you.
Note3:All information provided "as is" for informational purposes only, not intended for trading purposes or advice. This app is not liable for any informational errors, incompleteness, or delays, or for any actions taken in reliance on information contained herein.