This week's CPI reveal: the economic sector's high-profit accounts are positioning for an inflation rate range of 3.6%–3.7%.

According to PolyBeats monitoring, the U.S. September CPI will be released on October 14 at 20:30 Beijing time. The prediction market Polymarket assigns a 41% probability to 3.6% and a 42.5% probability to 3.7%.

perfectnostalgia bought $2,080 of "Yes" on "Will the U.S. September CPI year-over-year inflation rate be 3.7%?" at a purchase probability of 39.63%.
They have made a total of 172 trades in the CPI sector, with a 55% win rate and net profit of $46,800, and this bet is 1.97 times their median bet;
They have made a total of 722 trades in the economics sector, with a 51% win rate and net profit of $136,500, and this bet is 6.86 times their median bet.

August CPI was 3.4% year-over-year, with a 0.4% month-over-month increase; gasoline prices rose 3.9% in the month alone, contributing more than one-third of the overall CPI increase that month. If energy, transportation, and other costs affected by geopolitical conflict continue to pass through in September, a rise in CPI from 3.4% to 3.6%–3.7% is a reasonable forecast.

On the other hand, CPI will affect the Federal Reserve's interest rate decision, and this time the impact will be relatively direct. The Federal Reserve already raised rates by 25 basis points on September 16, lifting the federal funds rate target range to 3.75%–4.00%; the next FOMC meeting is on October 27–28, exactly two weeks after the CPI release.

The September meeting minutes show that most members believed one more rate hike this year could be appropriate, but also stressed that subsequent decisions depend on new data. Members are especially worried that energy shocks, AI investment, and other cost pressures will spread from individual industries into broader inflation; this means a headline CPI of 3.6%–3.7% would reinforce a hawkish signal, but the key still lies in core CPI, housing and services prices, and whether the PPI released on October 15 also shows that price pressures are spreading.