Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: Costco 1_DAY_RETURN: -0.0045208720635456 2_DAY_RETURN: -0.0084502281561602 3_DAY_RETURN: -0.0149991549771844 7_DAY_RETURN: -0.0247169173567686
The stock shows a consistent negative return trend over the specified periods.