
By Noah Solomon
Special to Financial Independence Hub
Should I stay, or should I go?
If I go, there will be trouble
And if I stay, it will be double
So come on and let me know
Should I stay or should I go?
— Should I Stay or Should I Go, by The Clash
Bubble or No Bubble?
During the latter part of 2025, one of the most common topics in both the media and in conversations with clients was whether markets are in a bubble, particularly with respect to AI-related companies. Given the spectacular multi-year ascent of many tech stocks and their sky-high valuations, it is unsurprising that many investors harbour serious concerns regarding a potential comeuppance.
Nobody can know for certain whether such a bubble exists, let alone how and when the proverbial story will end. However, analyzing the current environment from a risk-reward standpoint can provide investors with a useful framework to consider their current portfolio allocations and to determine whether changes are warranted.
Between a Rock & a Hard Place: Loss vs. Opportunity Cost
All bubbles, both perceived and actual, harbour the two key risks of loss and opportunity cost (i.e., missing the boat).
All bubbles eventually burst and leave a wake of losses when they do. However, in instances of false alarm where suspicions of a bubble prove unfounded, those who run for the hills suffer the opportunity cost of missing the proverbial party and leaving significant sums of money on the table.
Even in cases where the bubble moniker has proven to be accurate, things have not been straightforward. Given that irrationality and emotions are the root cause of excesses, bubbles tend to grow much bigger and to persist far longer than what may seem possible (one need look no further than Japanese stocks in the 1980s or tech stocks in the late 1990s to validate this statement). Unlike the false alarm scenario, significant losses do eventually materialize. However, this does not change the fact that investors who step aside before the comeuppance can nonetheless suffer significant opportunity costs as prices continue their often-parabolic extent long after alarm bells begin ringing.
That being said, opportunity cost is not merely comprised of the returns on the investments you forsake, but rather how those missed returns compare to those of the assets for which you forsake them. Even in instances where shunned assets deliver positive returns, if their returns are no greater or less than those of the holdings which replaced them, then the net opportunity cost is zero. Alternately stated, it’s not just about the returns you’re missing, but rather about the returns of what you’re missing vs. the returns you’re getting in their stead.
Not all Bubbles are Created Equal: A Trip down Bad Memory Lane
Historically, different bubbles have been accompanied by very different investment environments, which in turn have presented investors with vastly different prospective risks and returns. This fact is clearly evident across the three debacles of the new millennium, which include the dotcom bubble of the late 1990s/early 2000s, the global financial crisis of 2008-9, and the fixed-income duration bubble of 2021-22.
Whereas there is no such thing as a good bubble (by definition, they all eventually burst), some bubbles occur in environments that are far more ominous than others. In the worst cases, the prospective opportunity costs of avoiding them are acute. Conversely, there are bubbles during which the prospective opportunity costs of avoidance are far less pronounced. In essence, the greater the potential returns are for non-bubble assets, the lower the associated opportunity costs of avoiding the bubble.
The Dotcom Bubble (2000-3): Attractive Alternatives aplenty
The aftermath of the dotcom bubble resulted in significant losses for many investors. In early 2000, U.S. large-cap stocks stood at their highest valuations in modern history. Given the historically inverse relationship between valuations and future returns, it should have been no surprise that disappointment ensued. Between the summer of 2000 and the spring of 2003, the S&P 500 Index declined by 45% in inflation-adjusted terms, while the tech-oriented Nasdaq Composite Index fell 79%.
However, these losses were largely avoidable while simultaneously achieving reasonable returns elsewhere. Emerging-market equities, emerging-market bonds, and REITs exhibited valuations that suggested decent returns over the medium term. While not particularly inspiring, even TIPS and cash were yielding 4% and 2% above inflation, respectively. In essence, investors who were willing to re-allocate based on relative valuations were not backed into a corner: they were not forced to endure meaningfully subpar returns by avoiding what appeared to be (and were subsequently proven to be) overvalued assets.
The Everything Bubble (2007-8): Nowhere to Hide except Bonds
The “Everything Bubble” of 2007-8 and the global financial crisis that followed were entirely different animals. By the time the good times had peaked in 2007, practically all risky equity markets had become overpriced, foreshadowing negative returns over the next several years regardless of country or region.
Unlike the case with the dotcom bubble, only safe-harbour assets such as TIPS, government bonds, and cash offered positive albeit meagre returns. The only way to avoid significant losses was to liquidate all risk assets (as opposed to reallocating within them), hide in safe assets, and accept lackluster albeit positive returns. While doing so would not have been ideal, it nonetheless would have been the least bad alternative.
The Duration Bubble (2021): Nowhere to Hide
The duration bubble of 2021 bore a far greater resemblance to its 2007-8 predecessor than to the dotcom bubble, and in some respects was even more problematic. Investors were stuck between the “rock” of overvalued equities and the “hard place” of bond yields that were substantially below inflation levels. Only cash, which was the only asset that didn’t suffer losses, failed to keep pace with inflation. Continue Reading…








