Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: IBM 1_DAY_RETURN: 0.0018443882778879 2_DAY_RETURN: -0.0048500580640752 3_DAY_RETURN: 0.0006147960926293 7_DAY_RETURN: -0.003142291140105
The stock shows a consistent negative return trend over the specified periods.