Key Points The Vanguard Mega Cap Growth ETF is concentrated in the largest tech companies in the world. Nvidia, Broadcom, and AMD make up about 20% of the fund all by themselves. With stretched valuations, it could be a good idea to buy shares over time. 10 stocks we like better than Vanguard World Fund - Vanguard Mega Cap Growth ETF › Megacap technology stocks are starting to look a little expensive, especially after recent moves in stocks like Nvidia (NASDAQ: NVDA) and Advanced Micro Devices (N ...