Altria, Johnson & Johnson, Waste Management, TJX, Linde, Costco and Quest Diagnostics add defense to a portfolio, scoring highest among S&P 500 stocks on an antifragility screen of low volatility, strong free cash flow, minimal debt and stable earnings. All are also trending up this year, with momentum scores above 75; Altria scores 100 on antifragility and J&J 99. x.comÂ



