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: 0.0008944180184575 2_DAY_RETURN: -0.0049192991015164 3_DAY_RETURN: -0.0190267105744603 7_DAY_RETURN: -0.0082123836240192
The stock shows a consistent negative return trend over the specified periods.