最新报道:Investors are borrowing at record levels to buy stocks, with margin debt hitting $1.1 trillion in June, matching peaks seen during past market bubbles like the dot-com era and 2021 meme-stock frenzy. Analysts warn this surge in leveraged investing could amplify market volatility if sentiment shifts, as margin calls force rapid sell-offs. The current rally, fueled by AI optimism and Fed rate cut hopes, has pushed the S&P 500 up 18% this year despite elevated valuations. Major brokerages report margin balances growing twice as fast as cash accounts, with retail traders particularly active in options markets. Regulators are monitoring the situation but haven't imposed new restrictions yet.