Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: Walmart 1_DAY_RETURN: 0.0033033826638477 2_DAY_RETURN: 0.0109672304439746 3_DAY_RETURN: 0.004360465116279 7_DAY_RETURN: -0.0110993657505285
The stock shows a consistent negative return trend over the specified periods.