Compare the stock returns over 1, 2, 3, and 7 days after being mentioned in the tweet. Highlight any significant patterns or trends.
STOCK: Viacom 1_DAY_RETURN: -0.0120481927710845 2_DAY_RETURN: 0.0015060240963854 3_DAY_RETURN: 0.0030120481927709 7_DAY_RETURN: -0.0030120481927711
The stock shows a consistent negative return trend over the specified periods.