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: 0.0 2_DAY_RETURN: -0.018006993006993 3_DAY_RETURN: -0.0234265734265734 7_DAY_RETURN: -0.0503496503496504
The stock shows a consistent negative return trend over the specified periods.