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: -0.0036061461273127 3_DAY_RETURN: 0.0214800878018188 7_DAY_RETURN: -0.0026654123549702
The stock shows a consistent negative return trend over the specified periods.