The S&P Services PMI is the trigger. Prices leap, and shortages are noted. S&P Global US Flash PMI Please consider the S&P Global US Flash PMI® US business activity growth accelerated for a fourth successive month in September to reach the fastest rate for over five years. A further surge in service sector business activity …The S&P Services PMI is the trigger. Prices leap, and shortages are noted. S&P Global US Flash PMI Please consider the S&P Global US Flash PMI® US business activity growth accelerated for a fourth successive month in September to reach the fastest rate for over five years. A further surge in service sector business activity …