How Alternative Investments Correlate to the Stock Market

Alternative investments correlation to the stock market ranges from slightly negative (gold at roughly -0.05) to moderately positive (public REITs at roughly 0.60). The lower the correlation, the more diversification benefit you get. The assets that matter most for reducing portfolio risk — farmland, private real estate, fine art, and private credit — all cluster below 0.20 correlation to equities.

Correlation measures how closely two assets move together, on a scale from -1.0 (perfect opposite movement) to +1.0 (perfect lockstep). A correlation of 0 means no relationship. For portfolio construction, assets with correlations below 0.30 to stocks provide meaningful diversification — your portfolio drops less during crashes because not everything falls at once.

Correlation Data: Alternatives vs. the S&P 500

Here's a correlation matrix based on data from 2000-2025, using the most common benchmarks:

| Alternative Asset | Correlation to S&P 500 | Correlation to Bonds (Agg) | |---|---|---| | Private Real Estate (NCREIF) | 0.15 | 0.10 | | Farmland (NCREIF Farmland) | 0.05 | 0.00 | | Fine Art (Artnet Index) | 0.12 | 0.05 | | Fine Wine (Liv-ex 100) | 0.15 | 0.08 | | Gold | -0.05 | 0.25 | | Private Credit | 0.25 | 0.15 | | Private Equity (Buyout) | 0.55 | 0.10 | | Hedge Funds (HFRI) | 0.75 | -0.10 | | Public REITs (FTSE Nareit) | 0.60 | 0.15 | | Bitcoin | 0.45 | -0.05 |

The standouts for portfolio diversification are farmland, fine art, fine wine, and private real estate — all with alternative investments correlation to stocks below 0.20. Gold offers the only consistently negative stock correlation, making it valuable during acute market crashes.

Why Correlation Matters More Than Returns

A common mistake: chasing the highest-returning alternative without considering correlation. An alternative earning 8% with 0.10 stock correlation does more for your portfolio than one earning 12% with 0.60 correlation.

Here's why. Assume a $500,000 portfolio:

Portfolio A: 70% stocks, 30% bonds (traditional)

• Expected return: ~7.5%
• Portfolio volatility: ~10%
• 2008-style drawdown: ~-25%

Portfolio B: 60% stocks, 20% bonds, 10% private real estate, 10% farmland

• Expected return: ~8.0%
• Portfolio volatility: ~7.5%
• 2008-style drawdown: ~-17%

Portfolio B earns slightly more and loses significantly less during crashes — entirely because of the low alternative investments correlation. The diversification benefit comes from the math of combining uncorrelated return streams, not from any single asset being "better." See our detailed guide on portfolio allocation to alternatives.

Asset-by-Asset Correlation Breakdown

Farmland: Correlation ~0.05

Farmland has essentially zero correlation to stocks. Crop prices depend on weather, global food demand, and agricultural supply — none of which are driven by corporate earnings or Fed policy. AcreTrader provides exposure to this near-zero correlation asset through fractional farmland investments.

During the 2008 crash, U.S. farmland values actually increased while stocks dropped 51%. During 2022's sell-off, farmland continued appreciating. This isn't coincidence — it reflects genuinely different economic drivers.

Private Real Estate: Correlation ~0.15

Private real estate (as measured by NCREIF or platform returns from Fundrise) shows low stock correlation because it's valued based on appraised property values and rental income, not daily market sentiment. The 0.15 correlation is dramatically lower than public REITs (0.60), even though both own real estate.

The difference is the wrapper. Public REITs trade on stock exchanges where panic selling drives prices far below underlying asset value. Private real estate pricing is insulated from this volatility. The underlying economics are similar, but the experienced correlation is vastly different.

Fine Art: Correlation ~0.12

Art prices are driven by collector demand, cultural trends, and wealth creation among ultra-high-net-worth individuals. These forces disconnect from quarter-to-quarter stock market movements. Masterworks tracks their portfolio of blue-chip contemporary art, which has shown consistently low stock correlation.

Gold: Correlation ~-0.05

Gold is the classic "flight to safety" asset. Its slightly negative stock correlation means it tends to rise when stocks fall — making it uniquely valuable during market panics. During 2008, gold rose roughly 5% while stocks dropped 37%. In 2020's COVID crash, gold dropped initially but recovered faster than equities.

Private Equity: Correlation ~0.55

Private equity's moderate stock correlation makes it less useful as a diversifier. PE returns ultimately depend on the same corporate earnings and economic growth that drive stocks. The lower measured correlation (vs. public equity at 1.0) partly reflects smoothed reporting — PE funds report quarterly valuations, not daily prices.

Crypto (Bitcoin): Correlation ~0.45

Bitcoin was once marketed as "digital gold" with zero stock correlation. That narrative died in 2022 when Bitcoin fell 65% alongside a stock market decline. Bitcoin now trades as a high-beta tech proxy, making it a poor diversifier despite its "alternative" branding.

How Correlation Changes During Crises

The dirty secret of correlation: it tends to increase during crises. When panic hits, investors sell everything. This means the diversification benefit you're counting on can partially disappear right when you need it most.

However, the degree of crisis correlation increase varies enormously:

| Asset | Normal Correlation to S&P | Crisis Correlation to S&P | |---|---|---| | Private Real Estate | 0.15 | 0.25-0.35 | | Farmland | 0.05 | 0.10-0.15 | | Gold | -0.05 | -0.15 to -0.30 | | Public REITs | 0.60 | 0.80-0.90 | | Hedge Funds | 0.75 | 0.85-0.95 |

Farmland and gold actually become better diversifiers during crises — their correlation drops or goes more negative. Public REITs and hedge funds become worse diversifiers, converging toward stocks precisely when you need separation.

This crisis behavior makes truly private, illiquid assets more valuable than their liquid "alternative" counterparts. The illiquidity that frustrates investors in normal times becomes an advantage during panics — you literally can't panic-sell, and the assets aren't repriced by panicking markets.

Building a Low-Correlation Portfolio

A practical allocation targeting low alternative investments correlation:

| Allocation | Asset | Platform | Correlation | |---|---|---|---| | 50% | U.S./International Stocks | Any brokerage | 1.00 | | 15% | Bonds | Any brokerage | ~0.00 | | 10% | Private Real Estate | Fundrise | ~0.15 | | 10% | Farmland | AcreTrader | ~0.05 | | 5% | Fine Art | Masterworks | ~0.12 | | 5% | Gold | ETF or physical | ~-0.05 | | 5% | Private Credit | Various platforms | ~0.25 |

This portfolio's weighted average alternative investments correlation to stocks is approximately 0.10 — versus 0.00 for a pure bonds complement. The blend of uncorrelated return streams targets 8-9% annual returns with roughly 30% less volatility than a stock-only portfolio. For more on this approach, see our guide on alternatives vs stocks and bonds.

Frequently Asked Questions

Which alternative investment has the lowest stock market correlation?

Farmland consistently shows the lowest correlation to stocks, typically 0.00-0.10. Gold shows the only reliably negative correlation (-0.05 to -0.15). Fine art and private real estate also score below 0.20. These assets diversify portfolios most effectively because their prices are driven by fundamentally different economic forces than corporate earnings.

Does low correlation mean an investment is safe?

No. Low correlation means the asset moves independently of stocks — it can still lose value on its own. Farmland can decline during agricultural crises. Art can lose value if collector tastes shift. Low correlation reduces portfolio risk through diversification, but each individual alternative still carries its own specific risks.

Why do public REITs have high stock correlation despite being real estate?

Public REITs trade on stock exchanges, so their prices reflect stock market sentiment as much as underlying property values. During the 2020 crash, public REITs fell 40% even though rents kept being collected. Private real estate, insulated from daily trading, barely moved. The listing venue creates artificial correlation.

How much should I allocate to low-correlation alternatives?

Most evidence supports 15-25% in alternatives with sub-0.20 stock correlation. Going above 30% sacrifices liquidity without proportional diversification gains. The marginal benefit of each additional percentage in alternatives decreases — the first 10% helps your portfolio far more than going from 20% to 30%.

Does cryptocurrency diversify a stock portfolio?

Not effectively. Bitcoin's correlation to the Nasdaq has risen to roughly 0.50-0.60 since 2020. During every major stock sell-off since 2021, crypto fell simultaneously (and usually harder). Crypto adds volatility to a portfolio without meaningful diversification benefit. It behaves like a leveraged tech bet, not a diversifying alternative.

Can correlations change over time?

Yes, and they do. Gold-stock correlation has shifted over different decades. Crypto-stock correlation has risen dramatically since 2020. Private real estate's low correlation has been relatively stable because the mechanism (appraisal-based pricing, illiquidity) doesn't change. Always check recent correlation data, not just long-term averages.

ModernAlts is an independent research platform. Nothing in this article constitutes investment, legal, or tax advice. Alternative investments involve risk including possible loss of principal.