Markets are near all-time highs, but it may be time to watch for signs of a correction. Brian Isabelle, Trading Strategy Desk Representative at Fidelity joined us to discuss how to forecast when a market downturn may occur. He breaks down the yield curve and the trends over the past 4 years. Isabelle notes the correlation between the yield curve and recessions. He points out that the yield curve has inverted 7 times in the last 50 years, and it had preceded a recession all 7 times. Isabelle also compares the performance of the S&P 500 versus the 30-year Treasury yield. He says if the yield keeps falling and short-term rates are being hiked by the Fed, you could set up a flat yield curve at best and an inverted yield curve at worst. Isabelle adds that if the yield curve starts to become inverted, it may be a good idea to review your portfolio and make it more defensive.