British Pound gains against Japanese Yen ahead of UK Budget

The British Pound (GBP) underperforms its major currency peers, except the Japanese Yen (JPY), on Tuesday. Against the Japanese currency, the Pound Sterling is up 0.18% to near 210.30.

The British currency faces pressure ahead of the United Kingdom (UK) Autumn Forecast Statement on Wednesday.

UK budget leaks point to larger GBP investment push via PuFins

Economists at Deutsche Bank note that their baseline assumption had been for the Chancellor to “tap into the fiscal rule flexibilities, using financial transactions via public financial institutions (the so-called PuFins), to boost investment spending via a two-stage approach: a GBP 8bn expansion in the coming Autumn Budget, followed by an equal increase in the Spending Review due next year.” However, they point out that “headlines from the FT over the weekend… suggest that Chancellor Healey will do more in the Autumn Budget, adding around GBP 20bn in investment over the next five years.”

Deutsche Bank adds that, “taking into account the slightly higher savings from HMRC, we project a near GBP 10bn increase per annum over the back half of the OBR’s forecast horizon, leaving the government’s gross financing requirement at just over GBP 250bn at the end of the forecast horizon (2030/31).” Using the OBR’s own modelling, they estimate that “using the OBR’s multipliers, we estimate that projected financial transactions could result in a 0.5% boost to GDP by 2031/32.”

With the scale of investment spending now expected to be larger than previously assumed, Deutsche Bank argues that “with investment spending now primed to be bigger than expected, one large tail risk for Budget Day has been removed with markets likely to adjust to the news ahead of the 28th of October.”

On the monetary policy front, financial markets are confident that the Bank of England (BoE) will hike interest rates by 25 basis points (bps) to 4% in the November policy meeting.

Meanwhile, the Japanese Yen underperforms even as market experts see the Bank of Japan (BoJ) remaining on the gradual monetary tightening path.

Japan inflation and wage ambitions bolster BoJ normalisation bets

Analysts at MUFG/BTMU highlight that domestic developments are "reinforcing expectations for gradual BoJ policy normalisation," pointing to a clear firming in underlying price pressures. Japan’s core inflation, excluding fresh food and energy, "accelerated to 2.4%yoy in September from 1.9% in August," while labour-market dynamics are underpinned by Rengo’s ambition of "wage increases of around 6% in 2027." Against this backdrop, MUFG/BTMU note that "markets are pricing one to two BoJ rate hikes over the next 12 months," underscoring a measured but increasingly credible tightening path.

In the policy meeting later this week, the BoJ is expected to hold interest rates steady at 1.25%.