According to @CNBC, Jim Cramer’s investing guide advises holding growth stocks alongside a broad-market index fund to combine stock-specific upside with diversified market exposure. Source: CNBC. For traders, this mix concentrates alpha in a growth sleeve while retaining market beta via the index fund, potentially reducing concentration risk versus an all-growth portfolio during equity volatility. Source: CNBC. The source does not mention cryptocurrencies and provides no direct guidance on BTC or ETH, so no immediate crypto-market impact is cited. Source: CNBC.