“八恶人”占标普500指数下跌的85%

“八恶人”占标普500指数下跌的85%
The Hateful Eight is 85% of S&P 500 Decline

原始链接: https://paulkedrosky.com/chart-of-the-day-the-hateful-eight-is-85-of-s-p-500-decline/

## 标准普尔500指数下跌由“仇恨八杰”驱动标准普尔500指数今年迄今下跌了7%，但这掩盖了损失的高度集中。一群被称为“仇恨八杰”的公司——最初的“七巨头”科技股*加上*甲骨文——导致了指数惊人的85%的跌幅，减少了576点。虽然指数中近500家其他公司总共*增加了*100点，但它们的收益被这些巨型股票（微软、英伟达、谷歌、苹果、亚马逊、Meta、特斯拉和甲骨文）的困境所掩盖。这扭转了之前指数收益广泛驱动的趋势。现在，指数的表现取决于少数几家公司的财务状况，使其容易受到情绪变化的影响——特别是关于人工智能投资和债务方面。

## 标普500指数集中度与市场下跌近期分析指出，八只大型股票（“可憎八杰”——可能指“七巨头”加上甲骨文）导致了标普500指数最近85%的跌幅。这引发了对市场集中度风险增加的讨论，这种现象在15年前并不常见。虽然一些人认为这样描述下跌具有误导性（因为有些股票在上涨），但另一些人认为这是一个关键点。争论的中心在于，这种集中度代表了真正的优势——这些公司更大、更多元化——还是脆弱性。担忧在于，市值加权指数基金虽然成本较低，但可能无法提供传统上预期的多元化。讨论的解决方案包括分散投资组合（例如，在市值加权和等权重基金之间分配持仓）或监管干预，如反垄断措施。最终，这场讨论强调了理解投资组合构成以及超越简单市场收益或损失的潜在风险的重要性。

Mar 30, 2026 1 min read

The former Mag 7 + Oracle are the main culprits in index decline this year

Chart of the Day: The Hateful Eight is 85% of S&P 500 Decline

Year-to-date, the S&P 500 index is down 7%, but that headline hides record concentration. The “Hateful Eight” — the Mag 7 + Oracle that drove index gains for the past two years — account for 85% of the year-to-date drawdown, subtracting roughly 576 points. The other ~490 companies collectively added about 100 points.

For most of the past cycle, indexes were driven by number of mega-cap tech stocks. Now that is all reversing, with the broad market overwhelmed by losses in a handful of stocks with outsized weights.

As you can see in the cluster above, the largest negative contributors are in the same cohort: Microsoft, Nvidia, Google, Apple, Amazon, Meta, Tesla, and Oracle. Their declines vary, but their index impact is large because of their huge weights. Meanwhile, many smaller index members are up year-to-date, but their contributions get washed away.

When leadership is this concentrated, index behavior becomes a function of a few balance sheets, not underlying breadth. And then sentiment flips, in particular about AI capex and associated debt, as it has, everything goes into reverse.

Plus subscribers have access to this and a growing number of other tools. You can find the dynamic Hateful Eight tracker here.

“八恶人”占标普500指数下跌的85% The Hateful Eight is 85% of S&P 500 Decline

“八恶人”占标普500指数下跌的85%
The Hateful Eight is 85% of S&P 500 Decline