Overview
Today’s financial markets resemble a stretched rubber band — seemingly steady, yet under growing tension. Every new record high, every wave of optimism, and every injection of speculative enthusiasm stretches that band a little further. For a time, it holds. But the tighter it gets, the more fragile it becomes, and eventually even a small pull — a policy misstep, an earnings disappointment, or a sudden change in sentiment — can make it snap.
Stock market crashes rarely occur because of one dramatic event. Instead, they are the result of pressure that builds gradually across the financial system — in valuations, liquidity, leverage, and psychology — until it can no longer be contained.
In this report we look at just how stretched financial markets are today and if investors need to be concerned. While no one can predict the exact moment there’s a break, it may be time for investors to stay alert, keep risk exposure in check, and be ready for sudden change.
1. Why Crashes Rarely Have a Single Cause
Many investors focus on identifying what will trigger the next crash. According to a recent Bank Credit Analyst (BCA) publication, that’s the wrong question. Asking which event will cause a market collapse is like asking which final tug will snap a rubber band. It’s not the last pull that matters; it’s the accumulated strain from all the previous tugs that have incrementally stretched the rubber band, before that one final tug causes the snap.
Stock markets can look calm even as underlying stresses build. Growth may appear solid, unemployment low, and stock indices rising — all while financial fragility quietly increases. Once the tension passes a critical threshold, it only takes a minor event to unleash a chain reaction of selling.
The key lesson is to monitor vulnerability, not just volatility. When markets are stretched — through overvaluation, heavy speculation, or unrealistic company earnings assumptions — the risk of a sharp correction rises even if everything still appears stable.
2. Lessons from Past Market Crashes
History shows that before every major crash; the rubber band was already pulled tight. We examine several past crashes to highlight the conspiracy of events that led up to the moment of each crash:
Chart 1: Economic Deterioration Before the 1929 Crash
In the months before the Great Depression, automobile, machinery, and steel production had already dropped sharply. Vehicle output fell by one-third before stocks peaked. Investors, fixated on rising share prices, ignored those warnings. Chart 1 shows that industrial weakness was well underway while the market was still euphoric.
Chart 2: Treasury Yields Before the 1987 Crash
The 22% plunge on October 19, 1987, wasn’t triggered by one single event. Instead, several factors — a rising U.S. trade deficit, a falling dollar, and surging bond yields — combined to make valuations unsustainable. When confidence cracked, the sell-off was swift. Chart 2 illustrates how bond-market stress stretched equity valuations beyond their breaking point.
Chart 3: Contagion in Emerging
The collapse of Long-Term Capital Management (LTCM) in 1998 wasn’t the cause of the panic — it was the final straw. The Asian financial crisis, Russia’s default, and the failure of major banks in Hong Kong and Japan had already weakened global sentiment.
Other examples include:
– 2000: The dot-com bubble burst as the Fed raised rates and companies flooded the market with new stock issues. These events had a double whammy on valuations.
– 2008: The GFC had its origins in slack borrowing standards where Housing and credit markets deteriorated long before Lehman Brothers failed and the financial world held its collective breath.
3. The Current Situation
According to BCA, two pillars have supported the recent bull market — a) strong economic data and b) the excitement surrounding AI. Both are now weakening.
Chart 4: Payroll data is a good economic indicator – and its falling.
a) The U.S. labor market looks healthy at first glance, but underneath, it’s losing momentum. Job growth outside the healthcare sector has turned negative, and many discouraged workers have stopped looking for jobs, masking the true rise in unemployment. Chart 4 reveals this hidden fragility.
Elsewhere, the U.S housing market is deteriorating. Building permits are at a five-year low, and inventories in southern states have surpassed pre-GFC levels. Sellers now outnumber buyers by the widest margin in 13 years. These shifts suggest consumer spending may soon slow, removing a major support for economic growth.
Earlier in 2025, domestic companies outside the U.S benefited from front running the imposition of new US tariffs. That temporary boost is now gone. This was very evident in Canada, where GDP fell 1.6% in Q2, and unemployment jumped. Similar trends are emerging elsewhere in the world indicating that global demand is cooling.
Chart 5: Free Cash Flow Among Hyperscalers Is Falling
b) Investors have treated AI stocks as untouchable, believing that as long as Nvidia performs well, nothing else matters. Such narrow confidence is risky. Companies like Meta and Google are highly exposed to advertising — a slowdown in consumer spending could hit their revenues hard. Even more concerning, free cash flow among the major hyperscalers (Amazon, Google, Meta, Microsoft, and Oracle) is declining. Historically, this has been a leading signal of future market weakness.
4. Investment Implications
Timing a crash is nearly impossible, but identifying fragility is not. Our observations are that the rubber band is already tight and that the probability of a sudden break is rising. Short-term rebounds may still occur, especially in AI and tech, but these are likely countertrend rallies rather than new booms.
Our advice to investors is to:
1. Diversify broadly — don’t let AI or tech stocks dominate your portfolio.
2. Maintain liquidity — keep some cash or short-term fixed income.
3. Monitor early indicators — employment, housing, and corporate cash flow.
4. Stay calm but vigilant — markets rarely announce their turning points in advance.
Just as with a rubber band, it’s not the first stretch that causes the break — it’s the final, imperceptible tug on an already strained system.
Conclusion
Markets don’t fall from a position of strength — they fall from complacency. Like a rubber band stretched too far, the global financial system can appear strong even as tension builds. When the release finally comes, it happens fast and violently. We can see signs of stretched markets and are carefully monitoring early indicators of economic activity and corporate cash flows. For prudent investors, the right move is not to panic but to prepare — to assess where portfolios might be overexposed and to rebalance toward resilience.