Jordan Spieth isn't the only one having a bad day today.
Shares of Under Armour were under pressure after Morgan Stanley reiterated its "sell" rating on the stock, and slashed its price target to $32 from $64.
The firm cited concerns over growth momentum and therefore a loss in market share as primary reasons for the call.
Morgan Stanley initially cut the stock to "underweight" on Jan 11. Shortly afterwards Under Armour rallied 17 percent on its strong fourth quarter that beat analyst estimates.
But while CNBC's "Halftime Report" experts disagree with the call, they're not jumping in at these levels.