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: 0.0 2_DAY_RETURN: 0.0 3_DAY_RETURN: 0.0003710116250309 7_DAY_RETURN: 0.0304229532525351
The stock shows a consistent positive return trend over the specified periods.