Goldman Sachs has advised clients to hedge their positions in AI-related trades due to concerns over market concentration. The bank highlights that Nvidia has been a major driver of US stock market gains, alongside other tech giants like Microsoft, Alphabet, Meta, and Broadcom. However, Goldman warns that lower-quality AI stocks, which lack the earnings power of these mega-caps, are particularly vulnerable to a momentum reversal. The bank's guidance comes after equity hedge funds suffered significant losses during a tech-led AI selloff, attributed to crowded positioning and forced liquidations. Goldman suggests maintaining core AI exposure while using options or relative value trades to protect against potential downturns. This strategy is gaining attention among crypto traders, who are adopting similar hedging techniques to manage risks associated with AI equity momentum shifts.