Dividend shares have had a great run, but that run may be over. In recent weeks, high dividend-yield sectors have lagged the broad market. In the current quarter, for example, the S&P 500's Utilities sector has lost nearly 4.5%, against a 4% gain for the index as of June 4. Why are high-yielding shares falling out of favor and what should investors do about it? For an answer to both those questions, watch the following video from Fool contributor Alex Dumortier and leave your comments below.