Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: CBS 1_DAY_RETURN: -0.0017027863777089 2_DAY_RETURN: -0.0030959752321979 3_DAY_RETURN: 0.0021671826625387 7_DAY_RETURN: -0.024767801857585
The stock shows a consistent negative return trend over the specified periods.