Costco Stock After Hours on December 9, 2025: Tariff Lawsuit, Special Dividend Hopes and What to Watch Before the December 10 Open
Costco shares closed at $888.44 on Tuesday, up 0.10%, then slipped to $887.35 in after-hours trading. The stock is down about 10.5% over the past year, underperforming the S&P 500 despite strong fundamentals and $275.2 billion in annual revenue. Investors watched for developments in a legal dispute with the Trump administration and speculation over a possible special dividend or stock split.