Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: GSK 1_DAY_RETURN: -0.0043668122270742 2_DAY_RETURN: -0.0016795431642593 3_DAY_RETURN: -0.0043668122270742 7_DAY_RETURN: -0.009741350352704
The stock shows a consistent negative return trend over the specified periods.