Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: FedEx 1_DAY_RETURN: -0.0031155545222042 2_DAY_RETURN: -0.0059056033480586 3_DAY_RETURN: -0.0174378051615903 7_DAY_RETURN: -0.0338990932341316
The stock shows a consistent negative return trend over the specified periods.