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: -0.0098961214579874 2_DAY_RETURN: -0.0151207818550618 3_DAY_RETURN: -0.0019054643801094 7_DAY_RETURN: -0.0031347962382444
The stock shows a consistent negative return trend over the specified periods.