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What would prove it wrong
This reading is sustained if the Council's next projection round keeps the mid-2027 return-to-target date from the March round; it is retired if that round instead pushes the CPI path higher or later, removing the premise for further cuts.
Review condition
NBP's next projection round (expected to revise the March 2026 round materially higher, per bank research previews): a projection that pushes the CPI return-to-target date beyond mid-2027 unwinds the bank-rally's rate-cut premise; one that holds the mid-2027 date sustains it.
Status
Sustained · 18 September 2026
How it settled
No fresh NBP projection round has landed since the 9 September note; the 15 September CPI print at 3.4% and the fuel-tax relief proposal narrow the case for cuts but do not themselves resolve the Council's stance, so the 9 September reading stands untested rather than confirmed or broken.

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A dated research thesis and its assessment. This is not portfolio performance or an investment recommendation.

WIG-BANKI's five-session rally into 9 September still prices NBP… · 9 September 2026 · Thesis ledger