U.S. stock futures showed positive movement as the S&P 500 rebounded after experiencing four consecutive days of losses. Key indices, including the Dow and Nasdaq, also saw gains ahead of Nvidia's earnings report, which is highly anticipated by investors. Nvidia's stock rose nearly 5% in pre-market trading, contributing to the overall upward trend in the market. Analysts are closely monitoring these developments, particularly in light of the previous downturns in the S&P 500 and Nasdaq, which had recently faced four-day losing streaks.