Shares of Carnival Corporation & plc (NYSE:CCL) are drifting sideways Monday. They gained almost 10% on Friday after offering upbeat guidance.If the move higher continues, there is a chance it ends around the $32.50 level. Our chart shows it was resistance in September; levels that have previously been resistance can become so again. This is why Carnival is the Stock of the Day.When a stock reaches a resistance level, reverses, and trends lower, holders of shares purchased at that level regret their decisio ...