Buying opportunity for <a href="https://ih.advfn.com/p.php?pid=squote&symbol=WGL" target="_blank" title="Stock quote for WGL">WGL</a> Holdings? Stock's down 3% today but looks <a href="http://bit.ly/2dHD2ya" rel="nofollow noopener noreferrer ugc" target="_blank">20% undervalued </a>