Yes, You Have Too Much Money in That One Hot Stock - WSJ

1. Many investors hold excessive NVDA stock, questioning diversification. 2. Nvidia's returns have significantly boosted various foundations' assets recently. 3. Historically, concentrated investments can lead to severe losses. 4. Diversification is crucial even when past performance suggests a continued uptrend. 5. Similar stocks like Cisco once peaked but later fell, emphasizing risks.