TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 8, 11:59 AM EST
Kalshi
This set of markets tracks potential movements in the U.S. 30-year fixed-rate mortgage average for a specific week in 2026. Each market represents a different threshold value, allowing participants to speculate on whether the rate will exceed various levels by the end of that week.
All markets resolve based on the average U.S. 30-year fixed-rate mortgage rate published by Freddie Mac in its Primary Mortgage Market Survey (PMMS) for the week of October 8, 2026. The weekly measurement period spans from 12:00 a.m. ET on the preceding Thursday through 11:59 p.m. ET on Wednesday, with the resulting national average published by Freddie Mac at 12:00 p.m. ET on Thursday. Each market has a specific threshold; if the published rate exceeds that threshold, the market resolves to Yes. Only the first published PMMS value for the specified week is used, and any subsequent corrections or revisions after expiration do not affect the outcome.
Currently, the odds in this market reflect expectations about the 30-year mortgage rate that may differ from those expressed in traditional analyst forecasts or polls. While analysts often provide point estimates or ranges, this market aggregates the collective judgment of many traders, resulting in a probability distribution across possible outcomes. It's important to note that prediction market prices represent what traders are willing to pay for a belief about the future, and these beliefs can evolve as new information becomes available, potentially diverging from initial expert opinions.
On Kalshi, this market is priced using a continuous double auction mechanism. Traders submit buy and sell orders for contracts representing different outcomes for the 30-year mortgage rate. The price of a contract reflects the probability of that outcome occurring, as perceived by the market participants. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market price adjusts dynamically based on supply and demand, meaning that as more traders buy a particular outcome, its price increases, and vice versa. This creates a real-time assessment of the likelihood of various rate levels.
This market resolves around Oct 15, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the average U.S. 30-year fixed-rate mortgage rate for October 8, 2026, as reported by a widely recognized source, will determine the winning outcome. Traders will be able to see the final result and whether their predictions were accurate following this date. The market will then settle based on this verified rate, and payouts will be distributed accordingly.
Several economic signals and events could significantly impact this market. Changes in the Federal Reserve’s monetary policy, such as adjustments to the federal funds rate, are major drivers of mortgage rates. Inflation data releases, particularly the Consumer Price Index (CPI) and the Personal Consumption Expenditures (PCE) price index, will also be closely watched. Unexpected shifts in economic growth, employment figures, and housing market indicators like new home sales could all cause traders to reassess their expectations and adjust their positions in this market.