Shares of Costco Wholesale (NASDAQ: COST) were heading lower Friday after its fiscal fourth-quarter revenue came in slightly below estimates.

Ahead of Thursday afternoon's report, the warehouse retailer was trading at a lofty valuation, so a pullback on its slight miss wasn't a surprise.

As of 10:51 a.m. ET Friday, the stock was down 1.5% after having fallen by as much as 3% earlier in the session.

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Source Fool.com