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: -0.0169717138103162 2_DAY_RETURN: -0.0245590682196339 3_DAY_RETURN: -0.0250249584026621 7_DAY_RETURN: -0.0437271214642262
The stock shows a consistent negative return trend over the specified periods.