Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: BMW 1_DAY_RETURN: -0.0148302328606738 2_DAY_RETURN: -0.0256276831013399 3_DAY_RETURN: -0.0256276831013399 7_DAY_RETURN: -0.0309613633407052
The stock shows a consistent negative return trend over the specified periods.