Shares of Datadog, Inc. (NASDAQ:DDOG) are little changed on Wednesday. They have been trading lower since reporting earnings in November.But the stage may be set for a reversal. The shares are oversold and at a possible support level. This is why we have made Datadog our Stock of the Day.Many trading strategies are based on the concept of reversion to the mean. If a stock gets overextended in one direction, traders will enter the market anticipating a move in the opposite direction.Most of the time, a stock ...