Costco is among the S&P 500's worst performers today. An analyst still says it's a ‘safe place to hide.

Core Viewpoint - Costco Wholesale Corp. shares declined by 2.5% on Friday, making it one of the worst performers in the S&P 500 for the day, following quarterly results that were weaker than expected [1] Financial Performance - The quarterly results released a day earlier indicated performance that did not meet market expectations [1]