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The AI bubble debate – Lessons from the Dotcom boom
Roger Montgomery
May 28, 2026
In this week’s video insight, I explore the growing debate around whether AI stocks are in a bubble by revisiting a strikingly familiar research note published during the DotCom era in 1999. At the time, investors were told there were “good reasons to pay through the nose” for leading technology stocks because their growth and disruptive potential made “this time different.” Drawing on my own experience working through the DotCom bubble, I reflect on how speculative excess can continue far longer than expected before eventually unwinding, often with devastating consequences for investors. While today’s artificial intelligence (AI) leaders may have strong fundamentals, history reminds us that every bubble comes with a compelling narrative that sounds convincing in the moment. Continue…
by Roger Montgomery Posted in Economics, Investing Education, Market commentary, Video Insights.
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ABC Statewide Drive – conflict and markets
Roger Montgomery
April 7, 2026
On ABC Statewide Drive, I discussed why geopolitical shocks have historically caused short-term market volatility rather than lasting weakness, with many conflicts followed by relatively swift recoveries and resilient equity returns. I also noted that while the current Middle East conflict is unlikely to become a world war, investors still need to watch the broader risks beyond the headlines, including elevated valuations, persistent inflation, higher oil prices, rising U.S. debt and the unpredictability of Donald Trump, all of which could make 2026 a more volatile and consolidating year for markets.
Tune into the segment from 1:44:38 here: ABC Statewide Drive – conflict and markets
by Roger Montgomery Posted in Radio.
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The Australian – AI optimists face a reality check as surging bond yields signal market trouble
Roger Montgomery
June 3, 2026
Bullish investors believe AI is a new, infinite fourth factor of a nation’s production and wealth creation. In the past, we had labour, capital and land as production inputs, all of which were, of course, finite. Land provided the raw materials, labour the muscle and the mind to transform them, and capital was the tool.
Enter AI. The transformative aspect of this fourth ingredient is that, unlike the physical limitations of land or the finite hours of the human workforce, data is a resource that is functionally unlimited. And, importantly, it’s the only factor of production that actually grows more abundant the more we use it.
Continue…
This article was first published in The Australian on 27 May 2026.by Roger Montgomery Posted in Editor's Pick, Global markets, In the Press, Insightful Insights, Investing Education, Market commentary, Market Valuation, Popular, Technology & Telecommunications.
Could global equities be close to the peak? Tune into Ausbiz to learn more here.



There’s a battle playing out right now between Wall Street’s most bullish artificial intelligence (AI) optimists and the bond market traders quietly sounding the alarm. The outcome of that contest will matter enormously to investors with skin in the game.