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: 0.0115599428497207 2_DAY_RETURN: 0.0115599428497207 3_DAY_RETURN: 0.0115599428497207 7_DAY_RETURN: -0.0494869463566697
The stock shows a consistent negative return trend over the specified periods.