Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: Nissan 1_DAY_RETURN: 0.0086481565771506 2_DAY_RETURN: 0.002730996813837 3_DAY_RETURN: 0.002730996813837 7_DAY_RETURN: -0.0050068274920345
The stock shows a consistent negative return trend over the specified periods.