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: -0.0241312741312741 2_DAY_RETURN: -0.0426904176904176 3_DAY_RETURN: -0.0426904176904176 7_DAY_RETURN: 0.0036416286416286
The stock shows a consistent positive return trend over the specified periods.