Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: salesforce.com 1_DAY_RETURN: -0.0031351602415235 2_DAY_RETURN: -0.0135856943799349 3_DAY_RETURN: -0.015908035299582 7_DAY_RETURN: -0.0270552717138875
The stock shows a consistent negative return trend over the specified periods.