Should You Buy Nvidia Stock in October?

Nvidia stock has surged 28.5% year-to-date and 1,110% over five years, driven by massive AI infrastructure demand. While Goldman Sachs projects $7.6 trillion in cumulative AI investment through 2031 and the company shows strong 106% revenue growth with 75% gross margins, concerns persist about valuation sustainability. Critics worry that justifying current capital spending requires unrealistic AI adoption levels (8.8% of GDP by 2032), and the stock's 96% revenue concentration in data centers makes it vulnerable to inevitable slowdowns and margin compression from competition.