Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: AstraZeneca 1_DAY_RETURN: -0.0159619629818305 2_DAY_RETURN: -0.0159619629818305 3_DAY_RETURN: -0.0159619629818305 7_DAY_RETURN: -0.0005094243504839
The stock shows a consistent negative return trend over the specified periods.