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: -0.0136806869451316 2_DAY_RETURN: -0.0073497307524377 3_DAY_RETURN: -0.0144083830592343 7_DAY_RETURN: -0.0094600494833356
The stock shows a consistent negative return trend over the specified periods.