COST is trading -3% now at $856, down sharply amid a Roth Capital downgrade to Sell.

  • Analysts cited weakening membership renewal rates at 89.7% globally and decelerating traffic growth to 3.1%.
  • Concerns over slowing paid member growth and rising competition from Walmart's Sam's Club and BJ's.
  • Shares also slipped after Costco declined a special dividend announcement, amplifying downside pressure in a mildly lower market.