Preliminary data indicate that inflation has not yet peaked, with several indexes already breaching the double-digit barrier. ENR’s Building Cost Index rose from a 9.0% annual rate in July to 10.4% in September. Marshall & Swift predicts inflation tracked by its index will climb from 10.4% in July to 11.5% by October, while Boeckh sees its index going from 6.2% to 8.5% during the same period. The annual rate of increase for the SmithGroup’s index went from 7.6% in July to 8.3% in August.