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: -0.0145919856325064 2_DAY_RETURN: -0.0205298013245032 3_DAY_RETURN: -0.0216971601751037 7_DAY_RETURN: -0.041564709843978
The stock shows a consistent negative return trend over the specified periods.