CME FedWatch, a market-based interest-rate probability tool, puts the chance of the Federal Reserve keeping rates unchanged through September at 39.8%, while assigning a 60.2% probability to a cumulative 25-basis-point increase. For October, the tool shows a 28.3% probability of unchanged rates, a 54.3% probability of a cumulative 25-basis-point hike and a 17.3% probability of a cumulative 50-basis-point increase. A basis point equals one-hundredth of a percentage point.