These dividend stocks look like compelling buys heading into the second half of the year.The stock market had a strong first half of the year. The S&P 500 rallied 14.5%, while the tech-heavy Nasdaq-100 index surged 17%.However, while the first half was strong for the broader market, it wasn't quite so good for dividend stocks. The Dow Jones US Dividend 100 Index (which tracks the 100 top dividend stocks) only rose about 2%. Because of that, many high-quality dividend stocks look like relatively attractive i ...