Monday was a mixed trading session, though.....

The Dow struggled on the first day of a shake-up of its 30 components. The S&P 500 stopped its winning streak of record closing highs... but the Nasdaq bucked the trend, closing at another lifetime high boosted by stock splits for Apple and Tesla.

Despite Monday's split verdict, the market upswing is fully intact for now, says Amy Kong, chief investment officer at Barrett Asset Management.

"As thing as long as this kind of support remains at least from the Fed and again headline momentum remaining you probably will see the markets react favorably. Of course though in the next several months you're going to be entering the election season. Political rhetoric can rear its ugly head and it can impact certain sectors more heavily than others - likely healthcare and even financials."

Airlines are doing what they can to salvage businesses as they wait to see if they'll get another round of government aid.

Delta Air Lines and American Airlines are following United Airlines by permanently dropping change fees on domestic flights, except for the cheapest so-called basic economy tickets. Investors fear a price war could be in the making as airlines burn through millions of dollars daily and prepare to lay-off tens of thousands of workers as early as October 1st. All three major airlines finished lower.

It was another blockbuster quarter for Zoom. The video teleconferencing company easily blew past sales and profit forecasts. Zoom is crushing it when it comes to converting free customers into paying users. Shares of Zoom have nearly quadrupled so far this year and continued to move higher after those quarterly results.