Prosper Trading Academy's Charles Moon says Amazon (AMZN) is starting to show "signs of life" in its price action, as long as pending tariff headlines trend positive. He expects Alphabet (GOOGL) rallying if it can hold its 200-day SMA. On Voyager (VOYG), Charles sees $51 as the key resistance level for the recent IPO. Charles Schwab's Ben Watson gives investors a closer look at the stocks through the charts.