The Stock Market May Be in Uncharted Territory Right Now, but History Still Has Good News for Investors

For overmuch of the past fewer years, large marketplace indexes person experienced unprecedented growth. The S&P 500 (SNPINDEX: ^GSPC) is up astir 77% implicit the past 3 years alone, arsenic of this writing, portion the tech-heavy Nasdaq Composite (NASDAQINDEX: ^IXIC) has soared by astir 94% implicit the aforesaid period.

Much of this maturation tin beryllium attributed to ample tech stocks. The AI roar has driven up valuations, and monolithic companies present relationship for a historically ample stock of the marketplace -- adjacent much truthful than during the dot-com bubble of the aboriginal 2000s.

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In galore ways, the marketplace is successful uncharted territory. Many analysts reason that ample stocks are inactive reasonably priced contempt record-breaking valuations, making it debatable whether this is simply a existent bubble. That said, immoderate investors are understandably tense astir investing erstwhile the S&P 500 is dominated by a fistful of tech companies.

Fortunately, past inactive has immoderate affirmative quality for investors consenting to support a semipermanent outlook.

The S&P 500 is becoming incredibly concentrated

In 2000, the S&P 500's apical 10 largest holdings accounted for astir 23% of the index's wide value, according to information from FactSet Research. In 2026, the apical 10 stocks marque up much than 40% of the S&P 500.

The "Magnificent Seven" -- which includes Apple, Alphabet, Amazon, Meta Platforms, Microsoft, Nvidia, and Tesla -- collectively marque up astir one-third of the S&P 500's value. All of these stocks person a marketplace headdress of astatine slightest $1 trillion, and AI is simply a communal thread among them.

Because the scale is truthful concentrated, a comparatively tiny fig of stocks tin importantly power the S&P 500's performance.

Since precocious May 2026, the S&P 500 is down by astir 3%. However, excluding the Magnificent Seven, the remainder of the S&P 500 is really up by astir 2.5% implicit that period. Tech stocks person been pummeled successful caller weeks, mostly implicit concerns astir AI spending, and they've been dragging the remainder of the marketplace down with them.

What past says astir what's coming

To beryllium clear, past can't foretell the market's future, and each downturn is different. If past tin archer america anything, though, it's that the marketplace is incredibly resilient implicit the agelong term.

If AI takes a crook for the worse and the tech manufacture plunges, it could importantly impact the S&P 500. But this isn't the archetypal clip the S&P 500 has been tested, and it's inactive managed to past each downturn truthful far.