Asia chip stocks fall as Warsh revives rate-hike fears, oil adds risk-off pressure

Asian technology stocks experienced a decline on Monday as Federal Reserve Chair Kevin Warsh's cautious remarks reignited concerns about a potential September interest rate hike. Simultaneously, heightened tensions between the United States and Iran led to an increase in oil prices, adding to the overall cautious sentiment in the market.

South Korea's KOSPI fell by 2.1%, while Japan's Nikkei 225 dropped 1.7% and the broader TOPIX slipped 0.7%. Investors were forced to reevaluate the outlook for borrowing costs in light of Warsh's comments, which suggested that the Federal Reserve would need to demonstrate progress in bringing inflation back to its 2% target. This had resulted in a 57% probability of a September rate increase, up from roughly 35% prior to Warsh's speech at Jackson Hole.

The U.S. two-year Treasury yield reached a one-month high near 4.33%, which has significant implications for Asian technology shares that had already been volatile following Nvidia's recent results. While Nvidia's outlook indicated a strong demand for AI infrastructure, investors remained sensitive to the high valuations and financing costs that could be exacerbated by higher short-term yields.

The rise in yields increases the discount rate applied to future earnings, further pressuring growth and technology stocks. U.S. equity futures also showed a more cautious outlook, with the Nasdaq 100 Futures down 0.6% and S&P 500 Futures down 0.4%. South Korean technology stocks were particularly affected, with SK Hynix falling 3.5% and Samsung Electronics dropping 2.5%.

Despite the recent rebound driven by Nvidia's results, these stocks remain highly sensitive to shifts in rates and risk appetite. The decline leaves SK Hynix down approximately 7.2% this month and Samsung down 4.6%. Japan's Kioxia Holdings saw a 1.1% rise, Sony gained 0.8%, and Largan Precision climbed 3.3%. However, TDK and Murata Manufacturing also experienced declines.

In contrast, LG Innotek saw a nearly 19% gain this month, which highlights the uneven response to the post-Nvidia market situation. The focus now shifts to upcoming U.S. labor-market and inflation data, which may determine whether the increased expectation of a September Fed rate hike persists.