Knowing how to calculate CPI matters more than usual this week, because real US inflation data lands in the next 48 hours and feeds directly into what Fed Chair Kevin Warsh’s board weighs at its October 27–28 meeting. Traders are already positioning for a high-volatility stretch — and the same CPI mechanics driving that setup are exactly what determines Australian pension increases and RBA decisions too.
Wed, Oct 14
US CPI (September data), 8:30am ET — Bureau of Labor Statistics
Thu, Oct 15
US PPI (September data), 8:30am ET — Bureau of Labor Statistics
Oct 27–28
Next FOMC meeting under Fed Chair Kevin Warsh
Why this week’s CPI print matters more than usual
Markets are framing this specifically as a high-volatility setup: a softer-than-expected CPI print is widely seen as increasing the odds of a more accommodative Fed stance at the October 27–28 meeting, while a hotter print raises the odds of further tightening. That’s the real reason this particular release is getting more attention than a routine monthly data drop — it lands just under two weeks before Warsh’s board has to make its next call.
Trading purely off a single social media post framing “the setup for the week,” without checking the primary data release times and source yourself. Posts can summarise real events accurately or inaccurately — the BLS release calendar and the Fed’s own published schedule are the primary sources worth checking directly, and we couldn’t independently confirm a specific public speech by Warsh this particular week at time of publishing.
How to calculate CPI, step by step
The Consumer Price Index measures the average change over time in prices paid for a fixed “basket” of goods and services — things like food, housing, transport, and healthcare. To calculate CPI for a given period, statisticians compare the cost of that same basket now against its cost in a chosen base period, then express the result as an index number.
The percentage change between two CPI readings is the inflation rate most headlines quote.
So when Wednesday’s headline says “CPI rose 0.3% month-over-month,” that 0.3% is the change in this index figure, not a flat price increase across every item — markets will also be watching the “core” CPI figure, which strips out volatile food and energy prices to judge the underlying trend.
Are pensioners getting a pay rise from this CPI data?
In Australia, this is where CPI stops being an abstract trading statistic and becomes directly personal. Age Pension and related Centrelink payments are indexed against the higher of CPI or the Pensioner and Beneficiary Living Cost Index. The most recent increase took effect on 20 September 2026, lifting the single Age Pension rate by $36.80 a fortnight ($55.60 combined for couples) — this week’s US releases don’t feed into that specific figure, but Australia’s own data follows the same underlying logic.
When is the next pension increase?
Based on the standard twice-yearly indexation cycle (20 March and 20 September each year), the next expected Age Pension indexation date is 20 March 2027 — based on the established pattern rather than a confirmed published figure at time of writing, so check Services Australia directly closer to the date.
When is the next Reserve Bank meeting?
The RBA’s next scheduled monetary policy meeting is 2–3 November 2026, with any rate decision announced at 2:30pm AEDT on the Tuesday, alongside a quarterly Statement on Monetary Policy. This week’s US data is one of the inputs the RBA will be watching ahead of that meeting, even though its own decision is still a few weeks out.
Frequently Asked Questions
How to calculate CPI?
Divide the current cost of a fixed basket of goods and services by its cost in a base period, then multiply by 100 to get the index figure.
What is the CPI increase for 2026?
This week’s US CPI print (September 2026 data) is scheduled for Wednesday, October 14, with PPI following on October 15.
Are pensioners getting a pay rise?
Yes — the most recent Age Pension indexation took effect 20 September 2026, lifting payments based on CPI and related indices.
When is the next pension increase?
Based on the standard twice-yearly cycle, the next expected indexation date is 20 March 2027 — confirm the exact amount via Services Australia closer to the date.
When is the next Reserve Bank meeting?
The RBA’s next scheduled meeting is 2–3 November 2026, with any decision announced on the Tuesday afternoon.
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