How much of an investor's portfolio should be in venture capital?

What the Research Reveals

Traditional financial advice often ignores allocation to alternative investments like venture capital. However, comprehensive research by Hardman & Co in November 2021, applying Nobel Prize-winning Modern Portfolio Theory to UK venture capital markets, suggests this conventional wisdom may be leaving returns on the table.

8-14% Optimal seed-stage venture capital allocation for a typical 60/40 equity/bond portfolio

Key Research Findings

The analysis, which examined historical returns, volatility, and correlation data, demonstrates that venture capital can:

  • • Improve expected returns by 0.5-1.0% annually without increasing portfolio risk*
  • • An increase of 0.5% in returns over a 20 year period would result in ~10% more in total, or £13k more based on a £50k portfolio
  • • Provide valuable diversification with relatively low correlation to public equities
  • • Offer enhanced returns through UK tax-advantaged schemes (EIS and SEIS)
  • • Act as a hedge against public market volatility due to different risk drivers

*Based on historical data and modelling assumptions and using Modern Portfolio Theory models of risk represented by standard deviation of returns. Investing in early-stage companies will always be high risk. Past performance is not a guide to future performance.

The research suggests that venture capital behaves differently from quoted equities because companies are at different lifecycle stages – developing products and finding product-market fit rather than scaling mature businesses. This fundamental difference creates the diversification benefit.

Since venture capital companies succeed or fail based on different factors than public companies, their returns don't move in lockstep with the stock market. By adding venture capital and simultaneously rebalancing an investor's portfolio (reducing equities and increasing bonds), an investor can capture the higher expected returns of VC (15-22% vs 7% for equities) while the diversification benefit of the low correlation offsets the higher individual risk of venture investments, with a view to stabilising overall portfolio risk.

Interactive Portfolio Optimiser

How this works: Based on an investor's current equity/bond allocation, we estimate the research-backed optimal seed-stage venture capital weighting using the modern portfolio theory.

Key assumptions: Expected returns of 7% for equities, 2% for bonds, and 15-22% for seed-stage venture capital (24-37% after S/EIS tax relief). Risk measured by standard deviation: 15% for equities, 7% for bonds, and 32-47% for venture capital. Correlation of 0.47 between venture capital and equities.

Current Equity Allocation60%
Recommended Seed-Stage VC Allocation8%
Expected Annual Return Improvement+0.5% p.a.
Portfolio Risk LevelUnchanged

Optimised Portfolio

55%
37%
8%
55%Equity
37%Bonds
8%Venture Capital

Note: This maintains your overall portfolio risk level by rebalancing equities and bonds alongside the seed-stage venture capital allocation. Seed investments typically qualify for S/EIS relief (50% tax relief vs 30% for EIS). This model will change for scale-up venture capital.

Important: Portfolios with higher proportions of equity will have higher risk. The calculator suggests how to maintain the risk balance of an equity portfolio when incorporating venture capital, with a view to maintaining estimated risk and optimising return potential.

The Power of Tax-Advantaged Investing

The UK offers some of the world's most generous tax incentives for venture capital investment. These schemes can significantly enhance an investor's returns.

EIS Tax Benefits

  • 30% income tax relief
  • Capital gains tax-free on exit
  • Loss relief if investments fail
  • Capital gains deferral
  • IHT relief after 2 years

SEIS Tax Benefits

  • 50% income tax relief
  • Capital gains tax-free on exit
  • Enhanced loss relief
  • CGT reinvestment relief
  • IHT relief after 2 years

Impact on Returns

The research suggests these tax reliefs can increase expected IRRs from 15-22% to 24-37%, making venture capital even more compelling.

It's important to note that tax treatment depends on individual circumstances and may be subject to change. The availability of tax relief depends on the company maintaining its qualifying status.

Getting started with Venture Capital

While the research makes a compelling case for venture capital allocation, successful implementation requires careful consideration:

1. Diversification is Essential

Venture capital investments can and do fail. Research by SyndicateRoom suggests that a portfolio of 30+ investments reduces the probability of capital loss whilst improving an investor's probabalistic returns. This is why fund structures or portfolio approaches are crucial – single company investments carry significantly higher risk.

2. Take a Holistic Portfolio Approach

Adding venture capital isn't about bolting it onto an investor's existing portfolio. The research indicates an investor needs to rebalance their entire allocation. For a typical 60/40 investor adding 8% seed venture capital, this means reducing equities to 37% and bonds to 55% with a view to maintaining a similar risk level.

3. Consider Liquidity Needs

Venture capital investments are typically illiquid for 7-10 years. Ensure you have adequate liquid reserves before allocating to venture capital. The tax reliefs also have minimum holding periods – EIS relief is clawed back if you sell within 3 years.

4. Choose An Investment Route

UK investors can access venture capital through:

  • • EIS/SEIS funds - Professional management and instant diversification
  • • Venture Capital Trusts (VCTs) - Listed vehicles offering liquidity but often trading at discounts
  • • Direct investment - Via crowdfunding platforms or as business angels (requires more expertise)

5. Start Building Now

A common mistake is waiting until pensions are maxed out before considering venture capital. The research suggests that building venture capital allocation alongside pension contributions optimises long-term returns. The power of compound interest means even small improvements in annual returns create significant wealth over time.

Ready to Optimise?

We have multiple venture capital funds that offer different strategies to build an investor's diversified portfolio

Minimum investment: £5,000

Risk warning: Please click here to read the full risk warning.
Investing in early-stage businesses involves risks, including illiquidity, lack of dividends, loss of investment and dilution, and it should be done only as part of a diversified portfolio. Tax relief depends on an individual’s circumstances and may change in the future. In addition, the availability of tax relief depends on the company invested in maintaining its qualifying status. Past performance is not a reliable indicator of future performance. You should not rely on any past performance as a guarantee of future investment performance.
This page has been approved as a financial promotion by Syndicate Room Ltd, which is authorised and regulated by the Financial Conduct Authority (No. 613021).
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How much of an investor's portfolio should be in venture capital?