Market Insights: High Beta Back to the Future
Source: Zephyr Style Advisor, High Beta proxy: SPHB, Invesco S&P 500 High Beta ETF. Low Volatility Proxy, USMV, iShares MSCI USA Min Vol Factor ETF
Speculation Rhymes with 2021 — What Rising High Beta Leadership May Mean for Portfolios
Markets have a way of echoing themselves, even when the specific catalysts differ. Investors evaluating current conditions may want to consider a set of signals that, taken together, suggest speculative behavior has once again become a defining feature of this market cycle — one that potentially carries implications for how portfolios are constructed and diversified.
A Familiar Pattern Re-Emerges
Over the past year, cyclical technology names — particularly memory and semiconductor companies benefiting from massive hyperscaler capital expenditure — have driven a surge in high beta stock performance. On a rolling 250-day basis, high beta stocks outperformed low volatility stocks by more than 80% at their peak in mid-April of this year. That magnitude of outperformance is comparable to what markets experienced coming out of the COVID pandemic in 2021.
The comparison is worth sitting with. The 2021 period was defined by a specific set of behaviors: extreme valuations in so-called meme stocks like GameStop and AMC, a proliferation of special purpose acquisition companies (SPACs) with little operating history to underwrite, soaring valuations among unprofitable technology companies, and a surge in cryptocurrency prices detached from any discernible utility or intrinsic value. In hindsight, many of these dynamics were understood as symptoms of a broader speculative impulse rather than isolated events.
This Cycle’s Version of Speculation
The current environment has its own signature, even if the underlying impulse looks similar. Rather than meme stocks and SPACs, today’s speculative energy is concentrated in highly cyclical memory and semiconductor company outperformance. Alongside this, there has been a notable increase in single-stock, zero-days-to-expiration options trading — essentially bets on single-day stock price movements — as well as record inflows into narrowly focused, leveraged long exchange-traded funds tied to specific industry themes such as DRAM memory chips.
Speculative behavior isn’t confined to equity markets either. The rise of prediction markets and the broader growth of online gambling activity may reflect a similar underlying appetite for outcome-based, short-duration risk-taking that has become more visible across the economy.
A Historic Run for Technology
The scale of the current tech rally is notable in historical context. The S&P 500 technology sector’s cumulative performance from the December 2022 market bottom through June 2026 reached 226%, a figure that has now surpassed the sector’s cumulative return during the market melt-up years of 1998 and 1999 — the final stretch of the late-1990s tech bubble. This is not offered as a prediction of what comes next, but it may be a useful data point for investors assessing how concentrated recent equity market gains have become.
The Crowding-Out Effect
One consequence of this narrow rally is that it has left less room for other segments of the market. The weight of defensive sectors within broad market indexes, along with the dividend yield among dividend-paying companies, currently sits at multi-decade lows. For investors who assume their broad market exposure delivers diversification across sectors and styles, this concentration may be worth a closer look. A portfolio anchored to a market-cap-weighted index today may carry a different risk profile than the same allocation carried several years ago, simply because the index’s composition has shifted so significantly toward a narrow group of high beta names.
What History Suggests About What Comes Next
Speculative rallies have historically not persisted indefinitely. Periods of strong high beta outperformance have often been followed by extended periods of market broadening, during which factors like business quality, balance sheet strength, and reasonable valuations have tended to be rewarded by the market. We are not suggesting that history repeats on a fixed timeline, or that any specific outcome is guaranteed — only that these patterns may be instructive for investors thinking about how their portfolios are currently positioned.
Considerations for Investors
Given these dynamics, investors may want to evaluate a few questions as part of their ongoing portfolio review:
• How concentrated is my equity exposure in cyclical, high beta segments of the market, and is that concentration intentional?
• Does my current allocation still provide the diversification benefits I originally sought, given how much index composition has shifted?
• Are there complementary strategies — with an emphasis on quality, balance sheet strength, and valuation discipline — that could potentially help balance a portfolio that has become more concentrated in speculative, high beta exposure?
Our Perspective
At The London Company, our investment philosophy centers on identifying quality businesses with strong balance sheets trading at reasonable valuations, with an emphasis on downside protection through a full market cycle. We believe that periods of speculative excess, while they can persist longer than many investors expect, have historically created opportunities for a differentiated, quality-focused approach to potentially demonstrate its value as markets eventually broaden.
While we cannot predict when or how the current cycle will resolve, we believe portfolios built around business fundamentals rather than momentum may be better positioned to navigate whatever comes next.
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