S&P 500 Gains & Losses Today: Index Logs Record Close Ahead of Nvidia Earnings

1. S&P 500 reached record close ahead of Nvidia's earnings release. 2. Nvidia shares have increased 35% this year, leading major tech stocks. 3. Albemarle's stock rose after UBS upgraded its outlook, benefiting lithium prices. 4. Investors are positioned positively, awaiting Nvidia's quarterly performance update. 5. Stock performance varied significantly across tech and gaming sectors.