A different 'tack' for rough markets: How one ETF keeps moving to mitigate stock losses

Katie Stockton, Fairlead Strategies founder, joins CNBC's Bob Pisani on 'ETF Edge' to discuss the strategy behind her Fairlead Tactical ETF (TACK) that seeks to stay invested in top sectors of the market while reducing potential for stock losses. Troy Donohue, BTIG head of Americas portfolio trading, also weighs in on how similar ETFs compare and when the strategy performs best.