Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: Facebook 1_DAY_RETURN: 0.002534318901795 2_DAY_RETURN: 0.0042238648363251 3_DAY_RETURN: -0.0020415346708906 7_DAY_RETURN: -0.0120380147835269
The stock shows a consistent negative return trend over the specified periods.