With equity markets reeling due to President Donald Trump's tariffs, many investors are taking this opportunity to buy shares of top companies on the dip. It's a great strategy, but it's essential to avoid those companies that only look undervalued but actually aren't.Some stocks are lagging the market for good reasons -- because their businesses look shaky and their prospects uncertain. These are the corporations to avoid even as they fall along with broader equities. Let's consider two examples: Teladoc H ...