Preview: Goldman Sachs sees yen and Nikkei risk building on faster BoJ rate path

Goldman Sachs anticipates that a Bank of Japan (BoJ) interest rate hike at its September 17–18 meeting is essentially a foregone conclusion. More crucially, the investment bank highlights building risks of an accelerated monetary policy tightening path, suggesting policymakers could deliver a subsequent rate hike as early as December. Goldman attributes this hawkish pressure to a confluence of factors, including elevated energy prices, surging artificial intelligence infrastructure demand, persistent yen weakness, and an accommodative fiscal backdrop under Prime Minister Takaichi. From a market perspective, a steeper BoJ rate-hiking trajectory carries critical implications for Japanese assets. While rising yields are expected to lift Japanese government bond yields and support the yen by narrowing the interest rate differential with other central banks, it poses substantial headwinds for equities. A stronger yen directly threatens Japanese exporter earnings, a cornerstone of the Nikkei 225, while tighter domestic financial conditions place downward pressure on equity valuations in rate-sensitive sectors.