As investors bet that the government would continue to veer from the expanded fiscal approach that threw markets into chaos, UK government bonds climbed and the pound increased.
As of 09:46 a.m. in London, the yield on 10-year gilts was down as much as 32 basis points to 4.02%, while the pound was trading 0.7% higher at $1.1253.
Prime Minister Liz Truss has already been compelled by the unfavourable market response to the original mini-budget proposals to retract a number of tax-cut promises and replace her first chancellor, Kwasi Kwarteng.
However, now that the Bank of England's emergency bond-buying operations, which served as a market backstop, have ended, the government is under even more pressure to restore investor confidence in public finances.
Hunt's speech is a "make-or-break" moment for the pound, according to ING analyst Francesco Pesole.
It also falls "on the first day of gilt trading without the backing of the Bank of England's temporary bond-buying scheme, which increases pressure on Hunt to present a credible strategy to repair the UK's problematic fiscal position."