Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: IBM 1_DAY_RETURN: -0.005104678211424 2_DAY_RETURN: -0.0078185577668646 3_DAY_RETURN: -0.0147971051951408 7_DAY_RETURN: -0.0188679245283018
The stock shows a consistent negative return trend over the specified periods.