Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: BlackRock 1_DAY_RETURN: 0.002627345844504 2_DAY_RETURN: 0.0058445040214477 3_DAY_RETURN: 0.0055227882037533 7_DAY_RETURN: 0.0410991957104557
The stock shows a consistent positive return trend over the specified periods.