Transports- Diverging For 1-Year, Testing Important Support By: TalkMarkets November 20, 2017 at 10:55 AM EST IYT underperformed the S&P 500 by nearly 10% in the past 12-months, with a good deal of underperformance taking place the past few weeks. Read More >> Related Stocks: Standard & Poors 500 Transportation Average Ishares ETF