Noteworthy Friday Option Activity: AMZN, COST, OKLO

The article highlights unusually heavy options activity in Amazon, Costco, and Oklo, with Amazon the clear focus. AMZN saw 697,952 contracts trade, equivalent to about 69.8 million shares and 139.7% of its 30-day average volume. The most active position was the August 7, 2026 $277.50 call, with 82,664 contracts traded. Costco also posted elevated options turnover at 28,589 contracts, or 135.7% of its monthly average, led by the August 7, 2026 $950 call. Oklo stood out as well with 117,689 contracts, 135.6% of average volume, concentrated in the August 14, 2026 $50 call. The piece is mainly a market-activity snapshot rather than a news catalyst, suggesting speculative positioning and heightened trader interest in these names.