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: -0.0002883506343713 3_DAY_RETURN: -0.0160034602076124 7_DAY_RETURN: -0.0354671280276815
The stock shows a consistent negative return trend over the specified periods.