Wall Street divided on stock market outlook as tech shares drive gains
- JPMorgan strategist sees "froth building" in stocks and crypto, signalling a bubble
- Goldman Sachs argues Big Tech valuations are justified by fundamentals
- S&P 500 keeps hitting new highs, led by mega cap tech stocks
- Earnings growth is supporting tech stock gains so far
- JPMorgan warns complacency and risk underappreciation could lead to more volatility