Watch now: ETF Edge on the market sell-off, and the Tesla-heavy ETF that's beating the S&P this year

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Investors have been flocking to the markets in droves this year, but is it too little too late? Dave Nadig of ETF.com and Ben Johnson of Morningstar join host Bob Pisani to debate. Plus, Cathie Wood of ARK Invest will discuss her Tesla-heavy ETF that has doubled the market's gain this year, and why she sees the electric automaker hitting $4,000 a share. 

CNBC's ETF Edge is dedicated to the fastest-growing trend in investing right now: ETFs. Every Monday, Bob Pisani will be joined by a panel of top market participants at the NYSE to offer educational and actionable advice to help you build your best portfolio.