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: -0.0100437388627895 2_DAY_RETURN: -0.0034019115502995 3_DAY_RETURN: -0.002591932609752 7_DAY_RETURN: -0.0021059452454235
The stock shows a consistent negative return trend over the specified periods.