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: -0.0190180739142163 2_DAY_RETURN: -0.0190180739142163 3_DAY_RETURN: -0.0190180739142163 7_DAY_RETURN: 0.0298534304469023
The stock shows a consistent positive return trend over the specified periods.