Hartnett: This Is The Biggest Mag7 Surprise That Could Spark A Full-Blown Market Crash

Those trading macro and indexes in the past year, could have done far worse than listening to BofA's CIO, Michael Hartnett, who last December told the market that the bank's proprietary Sell signal had been triggered. While stock ground in a narrow range for about two months after, they subsequently plunged and tumbled to a one year low on March 29, which was also the day Hartnett said that the "BofA sell signal ends, and policy panic begins." That just happened to be the literal S&P market bottom. 

So where are these opportunities?