ISSAQUAH, Washington, September 1, 2026, 05:50 EDT — Costco shares gained 0.1% in premarket trade as its 47x price-to-earnings ratio tests the strength of the $1,135 bullish target. Costco stock traded at $944.70 at 05:50 EDT, rising 0.1% from its close on Monday.The stock's trailing price-to-earnings ratio of 47.5 adds further scrutiny to its sales…
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