Are We in Another Bubble? Lessons from History and Signals Today

离火大运
10-10


Recent headlines are sounding familiar — warnings that U.S. stocks are looking “bubble-like,” with valuations at dotcom-era highs. The S&P 500’s forward P/E ratio sits well above historical norms, while margin debt has hit record levels. Yet volatility remains low, and optimism around AI and productivity growth continues to fuel the rally.

So, are we headed for a crash?

Not necessarily — but the risk of a correction is real.

Here’s the picture based on current indicators:

• Valuations are stretched — a 10–25% pullback would not be surprising.

• Market concentration in a few tech giants means sentiment shifts could ripple widely.

• Macro indicators like the yield curve are no longer inverted, suggesting recession risks have eased — but leverage and investor complacency remain high.

• Fundamentals, however, are stronger than in the 2000s. Today’s tech leaders generate profits, cash flow, and tangible adoption — not just hype.

🧩 My takeaway:

A moderate correction over the next year is more likely than a full-blown crash. Roughly speaking, the odds look like this:

• 60% chance of a correction (10–25%)

• 15% chance of a major crash (>30%)

• 25% chance the rally continues

Investors don’t need to panic — but they do need to prepare.

Take profits where positions are overextended, avoid excessive leverage, and keep liquidity ready. Markets can stay euphoric longer than expected, but history reminds us that cycles always turn.

“The time to repair the roof is when the sun is shining.” — John F. Kennedy

It's too early for Goldman Sachs to refute U.S. tech bubble fears
Goldman Sachs strategist Peter Oppenheimer said that it is too early to worry about a bubble in U.S. high-tech stocks at this stage, because the rise in technology stocks is accompanied by earnings growth, which is different from the historical bubble period. Investors are advised to diversify their investments to avoid risks.
Disclaimer: Investing carries risk. This is not financial advice. The above content should not be regarded as an offer, recommendation, or solicitation on acquiring or disposing of any financial products, any associated discussions, comments, or posts by author or other users should not be considered as such either. It is solely for general information purpose only, which does not consider your own investment objectives, financial situations or needs. TTM assumes no responsibility or warranty for the accuracy and completeness of the information, investors should do their own research and may seek professional advice before investing.

Comments

  • Astrid Stephen
    10-11
    Astrid Stephen
    AI profits beat dotcom hype! SPX pullback is just a buying chance!
  • Reg Ford
    10-11
    Reg Ford
    Margin debt spikes! Tech concentration will crash stocks,sell everything now!
  • windy00
    10-11
    windy00
    It's wise to stay cautious.
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