Recent hotter-than-expected July CPI data, with headline inflation at 3.5% and trimmed mean at 3.6%, has driven the shift in market-implied odds for the Reserve Bank of Australia’s September 29 meeting, elevating the chance of a 25 basis point hike while keeping a hold as the leading outcome at around 59%. The RBA’s August Statement on Monetary Policy and minutes highlighted persistent inflation risks from domestic capacity pressures and Middle East conflict pass-through, prompting the board to remain hawkish despite holding the cash rate at 4.35%. Several major banks have revised forecasts upward in response, though incoming GDP, labor, and housing data before the meeting could still tilt sentiment. These probabilities reflect aggregated trader positioning amid uncertainty over whether inflation will reaccelerate.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNo change 59.4%
25 bps increase 38.4%
50+ bps decrease <1%
25 bps decrease <1%
$37,480 Vol.
$37,480 Vol.
50+ bps decrease
<1%
25 bps decrease
<1%
No change
59%
25 bps increase
38%
50+ bps increase
<1%
No change 59.4%
25 bps increase 38.4%
50+ bps decrease <1%
25 bps decrease <1%
$37,480 Vol.
$37,480 Vol.
50+ bps decrease
<1%
25 bps decrease
<1%
No change
59%
25 bps increase
38%
50+ bps increase
<1%
The resolution source will be official information from the Reserve Bank of Australia, including the statement or release from its September 2026 meeting, scheduled for September 28-29, 2026, as listed on the official RBA calendar (https://www.rba.gov.au/schedules-events/calendar/?topics=monetary-policy-board). This market may resolve as soon as the statement or release of the Reserve Bank of Australia Monetary Policy Board resulting from its September 2026 meeting with relevant data is issued.
If the specified rate is defined by an upper and lower bound, the relevant change will be the change to the upper bound.
If the specified rate is changed to a level not expressed in the displayed options, the change will be rounded according to the following guidelines. Increases or decreases of less than 25 bps will be rounded to 25 bps (e.g. an increase or decrease of 10 bps would be considered to be an increase or decrease of 25 bps). Increases or decreases of greater than 25 bps will be rounded to the nearest 25 bps and will be rounded away from 0 in cases of equidistance (e.g., an increase or decrease of 37.5 bps would be considered to be an increase or decrease of 50 bps). Displayed options of "Increase" or "Decrease" will include policy rate increases or decreases of any size.
If the specified meeting is postponed to a date and time before the start of the next scheduled meeting, this market will resolve based on the outcome of that postponed meeting.
If the specified meeting is cancelled, or postponed such that no decision is announced by the start of the next scheduled meeting, this market will resolve to the "No Change" bracket. Emergency changes to the specified rate not resulting from the specified meeting will not be considered.
Market Opened: Jul 29, 2026, 6:27 PM ET
Resolver
0x69c47De9D...The resolution source will be official information from the Reserve Bank of Australia, including the statement or release from its September 2026 meeting, scheduled for September 28-29, 2026, as listed on the official RBA calendar (https://www.rba.gov.au/schedules-events/calendar/?topics=monetary-policy-board). This market may resolve as soon as the statement or release of the Reserve Bank of Australia Monetary Policy Board resulting from its September 2026 meeting with relevant data is issued.
If the specified rate is defined by an upper and lower bound, the relevant change will be the change to the upper bound.
If the specified rate is changed to a level not expressed in the displayed options, the change will be rounded according to the following guidelines. Increases or decreases of less than 25 bps will be rounded to 25 bps (e.g. an increase or decrease of 10 bps would be considered to be an increase or decrease of 25 bps). Increases or decreases of greater than 25 bps will be rounded to the nearest 25 bps and will be rounded away from 0 in cases of equidistance (e.g., an increase or decrease of 37.5 bps would be considered to be an increase or decrease of 50 bps). Displayed options of "Increase" or "Decrease" will include policy rate increases or decreases of any size.
If the specified meeting is postponed to a date and time before the start of the next scheduled meeting, this market will resolve based on the outcome of that postponed meeting.
If the specified meeting is cancelled, or postponed such that no decision is announced by the start of the next scheduled meeting, this market will resolve to the "No Change" bracket. Emergency changes to the specified rate not resulting from the specified meeting will not be considered.
Resolver
0x69c47De9D...Recent hotter-than-expected July CPI data, with headline inflation at 3.5% and trimmed mean at 3.6%, has driven the shift in market-implied odds for the Reserve Bank of Australia’s September 29 meeting, elevating the chance of a 25 basis point hike while keeping a hold as the leading outcome at around 59%. The RBA’s August Statement on Monetary Policy and minutes highlighted persistent inflation risks from domestic capacity pressures and Middle East conflict pass-through, prompting the board to remain hawkish despite holding the cash rate at 4.35%. Several major banks have revised forecasts upward in response, though incoming GDP, labor, and housing data before the meeting could still tilt sentiment. These probabilities reflect aggregated trader positioning amid uncertainty over whether inflation will reaccelerate.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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