Citi Global Markets posted its US Economic Surprise Index, which has reached its lowest level in over a year. Citi head of equity trading strategy Stuart Kaiser joins Catalysts to give insight into the US Economic Surprise Index and what it means for the broader market.

"The reason surprise has gone negative is because consensus has revised up their numbers as the recession hasn't materialized. So you kind of set a higher bar from consensus. Now, the data has been coming in below that higher bar since early May. So it's concerning just in the sense you have negative surprise on hard economic data," Kaiser tells Yahoo Finance.

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This post was written by Nicholas Jacobino