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: 0.008974674207032 2_DAY_RETURN: 0.0177034669289402 3_DAY_RETURN: 0.0243422670272927 7_DAY_RETURN: 0.0361445783132529
The stock shows a consistent positive return trend over the specified periods.