Asian equities advanced on Wednesday, led by a surge in semiconductor shares, as investors held their breath ahead of Nvidia's earnings report, which is expected to provide crucial direction for the artificial intelligence trade. Simultaneously, oil prices dropped for a third consecutive session as easing geopolitical tensions boosted bond markets, with overall sentiment leaning toward cautious optimism.

The MSCI Asia Pacific index climbed 0.9% on Wednesday, with Samsung Electronics and SK Hynix contributing the most significant gains. Japan's Nikkei 225 rose 0.6% to close at 66,262.16 points, while the Topix gained 0.4% to 4,111.02 points. South Korea's KOSPI finished 0.97% higher at 6,808.21 points.

Three pivotal events are set to dominate trading this week. Nvidia's earnings will offer a critical signal on whether the AI rally can regain momentum. Federal Reserve Chair Warsh's first major address at the Jackson Hole symposium on Friday will help set the tone for the interest rate path. Meanwhile, the US PCE price index, due later on Wednesday, will test whether inflation remains sticky.

The decline in oil prices injected an additional positive factor into markets. Iran and Oman have initiated discussions on a "temporary framework" to restore shipping through the Strait of Hormuz. Brent crude fell 1.7% to around $87 per barrel, bringing its weekly decline to roughly 8%, while the potential easing of inflationary pressures supported strength in bond markets.

European equity futures pointed modestly higher in pre-market trading, but US stock index futures slipped 0.1%, reflecting investors' overall cautious stance. The US dollar index edged up 0.1%. The 10-year US Treasury yield rose 1 basis point to 4.64%. Japan's 10-year yield declined 1.5 basis points to 2.875%, while the 40-year JGB yield fell 2.0 basis points to 4.130%. Gold slipped 0.4% to $4,640 per ounce. Bitcoin hovered near the $79,000 level.

Chip stocks lead broad Asian advance

The AI trade had recently come under pressure as investors questioned whether tech giants' massive capital expenditures on artificial intelligence would yield commensurate returns. On Tuesday, Wall Street chip stocks had already moved ahead of the curve, with Nvidia snapping a seven-day losing streak as investors positioned themselves ahead of the earnings report.

Analysts project that Nvidia's quarterly revenue will have nearly doubled year-over-year, a figure exceeding the combined annual revenue of any of its competitors. "Nvidia is firing on all cylinders and taking every right step in the right direction," said Mark Malek of Siebert Financial. "We anticipate good news, but everyone is expecting it as well."

However, market sentiment is not without concerns. Mark Cranfield, a strategist at Bloomberg Markets Live, pointed out that heading into Nvidia's earnings season, the VIX fear index sits near its yearly lows, signaling latent volatility risk beneath a calm surface. The probability of the VIX moving higher appears greater than the downside potential.

Oil slides for third day, bonds strengthen

Brent crude declined for a third consecutive session, extending its weekly loss to around 8%. The trigger for this slide was the consultation between Iran and Oman on a "temporary framework" concerning shipping through the Strait of Hormuz. With geopolitical tensions showing signs of easing, the market's premium for potential supply disruptions has receded.

Lower oil prices have further dampened inflation expectations, supporting continued gains in bond markets. US Treasuries held onto Tuesday's advances. Japanese government bonds also strengthened, with the 40-year yield dropping 2.0 basis points to 4.130%, and New Zealand bonds also recorded gains.

Australia moved against the trend, however, as an inflation reading reinforced market bets on further rate hikes, causing early gains to fade and turn into losses. Kyle Rodda, senior analyst at Capital.com, noted in a research report: "Although the mountain of event risk casts a shadow over markets, the easing of geopolitical risks and the consequent decline in oil prices have been sufficient to offset market anxieties."

PCE data and Jackson Hole speech next in focus

The retreat in oil prices and the strength in semiconductor stocks provide current support for markets, but two major risks remain to be digested. Later on Wednesday, the Federal Reserve's preferred inflation gauge, the Personal Consumption Expenditures (PCE) price index, will be released, offering fresh readings on inflation trends and informing market assessments of the Fed's room for policy adjustment.

On Friday, all attention will turn to the Jackson Hole symposium, where Fed Chair Warsh will deliver his first major public address since taking office. Markets will scrutinize his latest remarks on the interest rate trajectory. In other markets, gold fell 0.4% to $4,640 per ounce, while bitcoin hovered near $79,000.

European Central Bank Executive Board member Isabel Schnabel stated that the ECB still needs to raise interest rates further given upside risks to inflation, though the euro weakened slightly. The Bloomberg Dollar Spot Index edged up 0.1%.