Rebuilding Your Portfolio For A New Market Regime

• In a higher inflation world, traditional portfolio diversification can no longer be relied on to protect portfolios against inflation.
• Compounding the problem, equity indices have become more concentrated, dominated by US tech.
• We believe that investors should consider rebuilding portfolios to restore balance.
• Doing so can help add new sources of return and diversification suited to today’s macroeconomic regime.

From time to time the macroeconomic forces driving financial markets shift, altering the established relationships and correlations between different investments. Just such a regime change began in March 2020 with the Covid-19 pandemic policy response, ending the low inflation regime that had dominated asset prices for the previous 20 years.

The first article in this series showed that the negative equity-bond correlation of 2000–2021 – when equity and bond prices tended to move in opposite directions – broke down in 2022 with rising inflation. Notably, we showed that the three forces behind today's inflation — demographic reversal, fiscal dominance and multipolar fragmentation — are structural and likely to be persistent. This sank the assumption underpinning the rules of portfolio diversification: that a diversified portfolio of equities and bonds would dampen market volatility.

Our second article revealed a further factor undermining traditional portfolio construction. It showed that the equity core of most investors’ portfolios has, in fact, become a concentrated position in US technology, whether they choose it or not.

This article is about how you can adapt your portfolio to the regime change we describe.

Why You Need New Ideas

To see why you need a new way to diversify, go back to basics. In the traditional 60/40 portfolio — 60% equities, 40% bonds — the bonds did two jobs. Firstly, they cushioned growth shocks: when recession fears hit equities, bond yields fell and their prices rose. And, secondly, they cushioned inflation, or at least appeared to, because for two decades inflation was low and falling and bonds could only benefit. They still do the first job, but not the second. In the growth scare of August 2024, a weak US jobs report sent the S&P 500 sliding 8.5% from its July peak and the 10-year Treasury yield fell from 4.23% to 3.78% as bond prices rose. But during 2022’s inflation shock, bond prices fell alongside equities and the more bonds you held the more you lost.

That means something else in your portfolio must take on the job of shielding it from higher inflation. That is the role of a satellite held alongside your portfolio’s stock-bond core. Given the concentration described in our second article, the satellite should also add return sources that do not depend on the handful of stocks that now dominate that core.

What Worked When Inflation Last Mattered

While the 2000-2021 regime was long thought the rule, a glance back to the 20th century shows in fact it was the exception. The nearest precedent for today’s regime is the 1970s, and the record from that decade is unambiguous. From August 1971, when President Nixon ended the dollar’s peg to gold, to the end of 1979, gold returned +23.5% a year in real terms, after inflation. Meanwhile, broad commodities rose +14.1% in real terms, defense stocks returned +11.3%, mining +5.5% and energy +5.4%. Over the same period the 10-year Treasury lost 2.7% a year in real terms, the US equity market lost 1.4% and listed real estate lost 8.6%¹. Reputed safety assets would have eroded your capital; yet scarce, physical assets compounded it.

We use US data throughout this article, for a simple reason: only the US has consistent return series that reach back to the 1970s, and mixing sources across regimes would blur the comparison. Our point is about the pattern of returns rather than the precise numbers, which for a euro-based investor will differ by exchange rate and inflation base.

The 1970s Pattern Holds

But was the 1970s pattern an accident specific to that decade or characteristic of a regime that at least rhymes with today even if it does not exactly repeat? The years since March 2020 — the start of the pandemic policy response and, in our view, the ignition point of the current regime — are the test.

Exhibit A: Scarcity Was Rewarded, Paper Claims Were Not

Real Annualized Return vs. Correlation to the S&P 500, March 2020 – September 2026

Colour shows what an asset is; the rings show what it did to a 60/40 portfolio.

Real (CPI-deflated) annualized return plotted against correlation to the S&P 500, month-end data, March 2020 to September 2026. Dark points are real or scarcity-linked assets; grey points are financial assets. Source: S&P Dow Jones Indices, Fama-French, FRED, Robert J. Shiller; VanEck calculations.

What the chart above (exhibit A) shows is the pattern held. The strongest real returns over the six years came from supply-constrained assets — semiconductors, mining and energy — all well clear of the US S&P 500 index's own +12.7% a year. Gold and broad commodities roughly matched the index while moving largely independently of it, with correlations below 0.3. Defense equities sat between the two groups: a weak 2026 left their return below the broader index, but still well ahead of inflation. Their correlation to the index stayed well below that of most equity sectors, partly because demand is set by government budgets and multi-year commitments rather than by the economic cycle. The 10-year US Treasury bond failed on both counts, losing 6.2% a year in real terms while correlating 0.38 with equities². As in the 1970s, scarcity was rewarded and long-duration paper claims were not.

These are the six assets we model as a satellite below, and how they were chosen matters. Five of the six — gold, broad commodities, defense, mining and energy — are the assets that worked in the 1970s. That evidence led to their selection, not the results above. The exception is semiconductor equities, which have no 1970s equivalent and which we include due to regime logic rather than precedent: they are capital-intensive assets, where geopolitically bottlenecked supply meets policy-driven demand.

The New Satellite’s Two Jobs

As the chart below (exhibit B) shows, the satellite’s assets do two different jobs: some diversify risk, others drive return.

Exhibit B: What the Satellite Assets Do

Adding Satellite Assets Individually (10% Each) to a 60/40 Core

Real annualized return against annualized volatility for a 60/40 stock-bond portfolio and for the same portfolio with a 10% allocation to each satellite added individually, March 2020 to September 2026, quarterly rebalancing. Satellite-enhanced portfolios are hypothetical, simulated combinations. Source: S&P Dow Jones Indices, Fama-French, FRED, Robert J. Shiller; VanEck calculations.

When added to the 60/40 baseline portfolio, each satellite asset improves return per unit of risk. But they do it in two distinct ways. Gold, broad commodities and defense move the portfolio up the chart and to the left: higher return with slightly lower volatility. These are diversifiers — they do the job bonds used to do. Semiconductors, mining and energy move it up and to the right: delivering markedly higher returns, at some cost in volatility. These are return drivers. They do not protect the overall portfolio; they add a source of growth that the core, for all its concentration, is not providing.

The distinction matters for how you size each of these asset types. It also matters for what you hold in your portfolio’s core. For instance, semiconductors overlap heavily with the 10 largest stocks, which made up 41% of the S&P 500 index at the end of 2025. A semiconductor holding in your satellite on top of a capitalization-weighted index core doubles up on tech, compounding a bet you may not have meant to make. On top of an equal-weighted core, though, it becomes a deliberate position of a size you chose.

Testing Satellite Performance

To test the portfolio satellite as a whole rather than one asset at a time, we took three stock-bond baseline portfolio allocations — a conservative 40/60, a balanced 60/40 and an aggressive 80/20 — and replaced 30% of each with a satellite sleeve of the six assets. At the balanced midpoint, the sleeve is equal-weighted. For the aggressive profile, it tilts toward return-drivers, mirroring the higher equity weight. For the conservative profile, it tilts toward diversifiers³.

We then looked at the maximum drawdown – fall from peak to trough – from March 2020 to September 2026. The result is striking and emphasizes how the rules of diversification have changed.

Exhibit C: Maximum Drawdown, Baseline vs. Satellite-Enhanced

Maximum real drawdown, daily data, 2 March 2020 to 30 September 2026, quarterly rebalancing. Baseline is S&P 500 and 10-year US Treasury at the stated weights; enhanced is core plus a 30% satellite sleeve. Satellite-enhanced portfolios are hypothetical, simulated combinations. Source: S&P Dow Jones Indices, Fama-French, FRED, Robert J. Shiller; VanEck calculations.

The three baseline portfolios barely differ. The conservative 40/60 fell 25.8% at worst; the balanced 60/40 fell 26.6%; the aggressive 80/20 fell 27.8%. Holding more bonds bought almost no protection, because stocks and bonds fell together when the drawdown struck. Yet our new satellite portfolio did what the bonds could not: it cut the maximum drawdown by 6.2 percentage points at 40/60, 5.6 at 60/40 and 3.8 at 80/20. The protection came from the satellite, and within the satellite from the diversifiers.

Return per unit of risk improved in every baseline profile too. The return-to-volatility ratio rose from 0.44 to 0.77 for the balanced portfolio and from 0.63 to 0.88 for the aggressive one. The conservative profile improved most, from 0.14 to 0.58 — because the old baseline portfolio had held most of the bond sleeve the new satellite replaces³.

Past performance is not a reliable indicator of future results. The satellite-enhanced portfolios are hypothetical and simulated; they do not represent any actual portfolio or VanEck product.

Adapting The Framework For Age

The traditional lifecycle rule has one lever: as you age, equities go down and bonds go up. That lever still works for the job bonds still do. But if bonds no longer protect against inflation, an investor approaching retirement needs a second lever.

Exhibit D: Modern Lifecycle Investing: Two Levers

Illustrative allocation across three time horizons. The satellite sleeve stays the same size; its split rotates from return-drivers toward diversifiers as the horizon shortens. Not investment advice; allocations depend on individual circumstances.

The second lever is the split within the satellite (see exhibit D). With a long horizon, the satellite leans toward return-drivers — the portfolio has decades to absorb volatility and needs growth. As the horizon shortens, it rotates toward diversifiers, taking over the inflation-protection role bonds used to fill. The size of the satellite need not change; what it holds does.

Why should volatility, rather than return, drive that shift? Take three hypothetical paths that each average 6% a year in real terms — arithmetically, not compounded. The first delivers 6% every year and turns 100 into 321 over 20 years. The second alternates +26% and −14%, roughly the volatility of a single equity sector, and reaches 223. The third alternates +46% and −34%, roughly the volatility of a single narrow theme, and ends at 69, a loss, from the same average return⁴. The gap comes from volatility alone. Returns are hard to predict; volatility is more predictable, and it decides the outcome. That is why, as your horizon shortens, a single narrow theme cannot be the whole satellite, and why the diversifiers earn their place even when they lag the return-drivers.

What To Actually Do

Taken together, we believe there are four steps to consider in adapting your portfolio to today’s regime:

1. Recreate your core portfolio deliberately. Replacing a market-capitalization-weighted index such as the MSCI World with an equal-weighted or dividend-tilted equity allocation reduces the concentration in a few US tech giants now embedded in standard index trackers. It also lessens the chance of accidentally doubling up on tech when choosing thematic satellite assets.
2. Rethink your bond holding for the job it can still do. Government bonds stay in the core of your portfolio, because they still cushion growth shocks. But bond duration (sensitivity to interest rates) should reflect that inflation, not recession, is now a significant risk. Certain fixed-income categories can add something government bonds cannot. Local-currency emerging-market bonds respond to different interest-rate cycles from developed-market bonds. High-yield bonds can serve as a return driver: they offer higher income from issuers spread across hundreds of companies and many sectors, with no handful of names dominating the index the way a few tech giants dominate equity indices.
3. Add a satellite portfolio with two parts. First, diversifiers — gold, broad commodities and assets that have behaved like them, such as defense — to do the inflation-protection job bonds no longer do. Second, return-drivers — miners, energy and semiconductors — to add growth that does not depend on the same few stocks as the core. For semiconductors, that holds only alongside a less concentrated core (step 1); on top of a standard index tracker, they double up on the mega-caps you already own. Newer themes such as space and digital assets share the same scarcity logic but lack the history to model and carry higher risk.
4. Shift your split as you age. When designing your satellite portfolio, tilt to growth assets when young; then gradually migrate to inflation shock absorber assets as retirement approaches.

There are no predictions here. We are not forecasting that bonds will fall or that gold will rise. Instead, we recognize that the portfolio most investors hold was built for a regime that has ended, and that the diversification it once provided for free must now be rebuilt.