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: 0.0026903973509934 2_DAY_RETURN: -0.0083816225165563 3_DAY_RETURN: -0.0083816225165563 7_DAY_RETURN: -0.0132450331125827
The stock shows a consistent negative return trend over the specified periods.