Japan Draws the Line
The Japanese yen experienced a dramatic turnaround at the end of the month, recovering sharply against a basket of currencies, especially the US dollar, after coming under pressure during the first part of the month. USD/JPY had climbed towards multi-decade highs, as investors continued to favour the dollar, supported by elevated US yields and the ongoing gap between US and Japanese interest rates. However, sentiment changed rapidly towards the end of July as Japanese authorities stepped in to support the currency, triggering one of the yen’s strongest moves in recent months.
For much of the month, the yen remained vulnerable as investors continued to focus on the large difference between Japanese and US borrowing costs. The Bank of Japan maintained a cautious approach towards monetary policy, keeping interest rates unchanged at 1.0% while emphasising that future decisions would remain dependent on economic data. Although Japan’s headline inflation rate had eased to around 1.6%, below the central bank’s 2% target, policymakers continued to monitor underlying price pressures, particularly wage growth and services inflation, to determine whether inflation could sustainably return to target.
The key turning point came in the final days of the month when Japanese authorities stepped into the foreign exchange market to support the yen after its decline reached levels viewed as excessive. The intervention reflected growing concern among policymakers that rapid currency moves were creating instability rather than simply reflecting economic fundamentals.
The move triggered a sharp decline in USD/JPY as investors quickly unwound short-yen positions, with the speed of the reversal highlighting how heavily positioned the market had become against the Japanese currency.
The yen’s recovery was further supported by a softer US dollar following the Federal Reserve’s policy meeting. While US interest rates remained elevated, markets became increasingly focused on the possibility of future rate reductions as economic indicators pointed towards a gradual cooling in growth and inflation pressures. A decline in US Treasury yields reduced some of the dollar’s previous advantage, helping to narrow the gap between US and Japanese assets and adding further momentum to the yen’s late-month recovery.
The sharp move also reflected a broader unwinding of carry trades, where investors had borrowed yen at relatively low rates to invest in higher-yielding assets. As USD/JPY reversed lower, these positions became less attractive, encouraging further demand for the yen.
Despite the strong recovery, questions remained over whether the move represented a lasting change in trend or a temporary correction. While intervention provided immediate support, sustained yen strength would likely require continued progress towards higher Japanese interest rates and a further narrowing of the US-Japan yield gap.
AI Optimism Tested
US equity markets entered a more cautious phase in July, with both the Nasdaq and S&P 500 experiencing pressure as investors reassessed stretched valuations, slowing momentum in technology shares, and the outlook for interest rates. After a strong first half of the year, market sentiment became more selective, with investors increasingly focused on whether corporate earnings could justify elevated expectations, particularly across artificial intelligence and large-cap technology companies.
The Nasdaq was the main area of weakness during the month, as investors reduced exposure to some of the year’s strongest performing technology names. The enthusiasm surrounding Artificial Intelligence remained a major theme, but the market began to demand clearer evidence that significant investment in AI infrastructure was translating into stronger revenue growth and profitability. Concerns over rising capital expenditure among major technology companies also weighed on sentiment, as investors questioned whether the scale of spending could deliver sufficient long-term returns.
The S&P 500 proved more resilient, supported by broader participation across sectors and a rotation away from the most expensive areas of the market. Investors began looking beyond the dominant technology names and moved towards companies with more attractive valuations and clearer earnings visibility. However, the index still faced headwinds as uncertainty around monetary policy and economic growth limited further upside.
A key driver of market direction throughout July was the Federal Reserve’s approach to interest rates. While inflation continued to show signs of gradual improvement, policymakers remained cautious and emphasised the importance of incoming economic data. Markets continued to price in the possibility of future rate cuts, but uncertainty over timing created periods of volatility. Treasury yields remained a key influence, with movements in bond markets directly impacting appetite for higher-growth equities.
Corporate earnings also played an important role in shaping investor behaviour. While many companies continued to deliver solid results, the market reaction became increasingly unforgiving. Investors rewarded firms that demonstrated strong profitability and sustainable growth, while companies with weaker guidance or heavier spending commitments faced greater scrutiny.
By the end of the month, the tone across Wall Street had shifted from broad optimism towards a more disciplined approach. The long-term technology and AI growth story remained intact, but investors became less willing to pay premium valuations without stronger evidence of future returns.