Nvidia reported strong earnings, causing its stock to rise significantly. However, this positive performance did not lead to an overall market boost. On the other hand, multiple software companies signaled buy opportunities following their earnings reports. Investors are keeping an eye on Federal Reserve chief Kevin Warsh's upcoming important speech. Dow Jones futures have declined as anticipation builds for Warsh's speech. In addition to Nvidia, seven other stocks are currently in favorable buy zones, presenting potential investment opportunities for traders.