For markets and investors, the ruling introduces a mix of clarity and uncertainty. Major indexes saw modest, but positive, initial reactions, with the S&P 500 ($SPX) up 0.3%, and Nasdaq ($NASX) up 0.5%, drifting modestly higher even as the Dow ($DOWI) slipped slightly before rebounding, suggesting that many institutional investors had priced in at least the possibility of such an outcome. Treasury yields were steady, reflecting continued caution amid mixed macroeconomic data.Justice Brett Kavanaugh, dissent ...