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: 0.0003609239653511 2_DAY_RETURN: -0.0135948026948989 3_DAY_RETURN: -0.0135948026948989 7_DAY_RETURN: -0.0323628488931665
The stock shows a consistent negative return trend over the specified periods.