Investors on Wall Street seem upbeat as the index futures point to a positive start on Wednesday despite ending the previous session on a mixed note. Search and advertising giant Alphabet Inc. (NASDAQ:GOOG) (NASDAQ:GOOGL) kicked off the highly anticipated tech earnings week on a strong note. The Sundar Pichai-led company posted strong momentum across verticals, beating revenue and earnings per share (EPS) expectations. Advanced Micro Devices Inc. (NASDAQ:AMD), on the other hand, fell 8% in premarket trading after the chipmaker’s fourth-quarter guidance disappointed investors. That said, AMD be…
