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: -0.0183855717037295 2_DAY_RETURN: -0.0099807389248818 3_DAY_RETURN: -0.0411486604797758 7_DAY_RETURN: -0.0099807389248818
The stock shows a consistent negative return trend over the specified periods.