SpaceX股票在本月挂牌交易首日大涨后，围绕该股的热情已迅速消退，这残酷地提醒人们，通过ETF市场对单一股票进行杠杆押注的风险极高。
AI竞赛引发巨额投资，美股业绩飙升背后暗藏隐患
企业盈利增长在很大程度上是因为，巨额AI投资的成本计入财务报表的滞后性。
How long will AI mania last?
The AI industry is hoovering up capital and transforming financial markets in the process. Mammoth listings from SpaceX, Anthropic and OpenAI could add as much as $4trn to the value of America’s listed firms by the end of the year. Existing AI stocks have already powered an enormous stock-market boom and the industry is issuing increasing amounts of debt. The euphoria is probably pushing up interest rates, too.But it remains unclear exactly how much and how quickly AI will transform the economy—and who will win and lose when it does. Financial risks are building as investors make huge bets on an uncertain future. If the technology realises its potential, will those bets pay off? If it doesn’t, what would the fallout look like? Henry Curr, Mike Bird and Josh Roberts, three of The Economist’s economics and markets experts, take stock of tech stocks and consider what could go wrong.
韩国狂飙的芯片股正将整个股市推入“危险地带”
三星电子与SK海力士现已合计占据韩国综合指数60%的权重，正将市场波动率推向极端。