Can markets be beaten?

What makes this fascinating

• The efficient-market hypothesis — If prices already reflect all known information, no one should consistently beat the market.

• Yet some do — Investors like Buffett and top quant funds have outperformed for decades — luck, or genuine skill?

• Anomalies that shouldn't exist — Persistent patterns like momentum and value challenge the idea that markets are perfectly efficient.

Frequently asked questions

Can you beat the stock market?

The efficient market hypothesis says prices already reflect available information, so consistently beating the market should be nearly impossible — yet some investors appear to do it, which keeps the question open.

What is the efficient market hypothesis?

The idea that asset prices fully incorporate all known information, so you can't reliably earn above-market returns except by taking on more risk or by luck.

If markets are efficient, how do some investors outperform?

Possible explanations include superior information or analysis, exposure to risk factors, behavioral mispricings that markets are slow to correct, or simply chance across many participants — economists don't fully agree.

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