You're dealing with a lot of silly people in the marketplace; it's like a great big casino and everyone else is boozing. If you can stick with Pepsi, you should be OK.
Who would think of buying or selling a private business because of someone's guess on the stock market? The availability of a quotation for your business interest (stock) should always be an asset to be utilized if desired. If it gets silly enough in either direction, you take advantage of it. Its availability should never be turned into a livability whereby its periodic aberrations in turn formulate your judgements.
The wise old fairy tales never were so silly as to say that the prince and the princess lived peacefully ever afterwards. The fairy tales said that the prince and princess lived happily ever afterwards; and so they did. They lived happily, although it is very likely that from time to time they threw the furniture at each other.
We just watch anything speed by. To stop and really ponder what a product label says, or the tagline on a TV commercial, might be inherently silly. Those are things that are almost designed to be thrown away.