Market Volatility and the AI Bubble Debate

The week began with a sharp correction in U.S. indexes, driven by weakness in the tech sector. While initial speculation pointed to concerns over high AI capital expenditure, the decline deepened into chip stocks, causing Korea’s KOSPI to drop nearly 10% and the SOX chip index to shed 8%. A positive earnings report from Micron Technology provided only a temporary reprieve before Apple’s decision to raise hardware prices—citing increased memory costs—sparked a second wave of selling across Asian markets.

Debate continues regarding the sustainability of the current rally. Masayoshi Son of SoftBank has dismissed bubble fears, while various Wall Street firms continue to raise S&P 500 forecasts. Meanwhile, the Federal Reserve under Kevin Warsh shows little inclination to intervene in asset prices, despite concerns that a "bubble blind spot" could exacerbate long-term volatility. Compounding this uncertainty is a widening gap in rate expectations among major banks, potentially worsened by the Fed’s move to minimize forward guidance.

In the United Kingdom, political instability has returned as Prime Minister Keir Starmer announced his resignation. Markets have remained relatively calm, shifting focus to likely successor Andy Burnham. However, the leadership transition does little to address systemic issues like stagnant productivity and high welfare spending. As the UK faces a severe heatwave and energy security concerns, the next administration faces an urgent need to define a coherent policy for North Sea energy activity.