Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: Costco 1_DAY_RETURN: -0.0023738511169273 2_DAY_RETURN: 0.0007912837056424 3_DAY_RETURN: -0.0013390955018564 7_DAY_RETURN: -0.0182603932071337
The stock shows a consistent negative return trend over the specified periods.