Shares in Australia and Japan rose as did Hong Kong equity futures following sharp declines on Tuesday. US equity futures dropped after the S&P 500 rose 1% and the tech-heavy Nasdaq 100 advanced 1.6% Tuesday. Chipmakers were among the market leaders with Nvidia Corp. extending a five-day rally to 14%. Shares in Australia and Japan rose as did Hong Kong equity futures following sharp declines on Tuesday. US equity futures dropped after the S&P 500 rose 1% and the tech-heavy Nasdaq 100 advanced 1.6% Tuesday. Chipmakers were among the market leaders with Nvidia Corp. extending a five-day rally to 14%. Economic Times