The State of Private InfrastructureAn asset class coming of age
Private infrastructure is evolving. As AI accelerates the development of digital infrastructure and reshapes sector exposures, understanding what drives returns, and how individual assets perform, is becoming increasingly important.
Private infrastructure has moved from a specialist allocation to an established component of institutional portfolios. But the asset class investors are accessing today looks very different from a decade ago.
The growing importance of digital infrastructure, the rapid buildout of AI-ready data centers and the wide dispersion in individual asset returns are changing how investors may need to approach portfolio construction.
In this report, MSCI explores the forces reshaping private infrastructure and why asset selection, diversification and more granular performance analysis matter as the asset class matures.
Key findings
1. An evolving asset class with changing return drivers
Private infrastructure portfolios have undergone a significant transformation. Digital infrastructure has grown from 3.6% of the MSCI Global Quarterly Private Infrastructure Asset Index's equity value a decade ago to nearly 30% in 2026, while the relative importance of traditional sectors such as transport has declined.
This evolution highlights how the asset class's historical returns have been generated by an increasingly diverse and changing mix of underlying assets. Understanding these shifts is important for investors seeking to identify return drivers, manage sector exposures and build diversified portfolios.
Share of equity value by sector in the MSCI Global Quarterly Private Infrastructure Asset Index. Data from June 2008 to June 2026.
2. AI is accelerating the transformation of data center infrastructure
The rapid expansion of artificial intelligence is driving a new phase of data center development. Growing demand for high-density computing is changing not only the pace of construction but also the technical specifications of new facilities.
AI-ready and liquid-cooled data centers are accounting for a growing share of new construction, reflecting the infrastructure requirements of increasingly power-intensive AI workloads.
For investors, this shift brings new opportunities alongside greater capital requirements and potential obsolescence risks for older facilities. Understanding how AI is changing the data center landscape is becoming increasingly relevant to infrastructure investment decisions.
Growth in AI-ready data center construction. Source: MSCI RCA Data Centers module. Data for 2026 relates to H2. Retail and Wholesale refer to colocations.
3. Wide return dispersion puts asset selection and diversification in focus
Headline index returns tell only part of the private infrastructure story. Individual asset performance varies considerably, even within the same geographic region.
Over the 12 months to June 2026, the middle 50% of individual asset returns spanned a range of approximately 13 to 18 percentage points across regions. In the Americas, for example, the index returned 17.5%, compared with 8.3% for the median asset.
These differences illustrate how the performance of large assets and strong outliers can influence value-weighted index returns, potentially masking the experience of a typical investment.
For investors, the findings reinforce the importance of asset selection, diversification and looking beyond headline benchmarks to understand the distribution of returns.
MSCI Global Quarterly Private Infrastructure Asset Index (Unfrozen), 12m total returns as of June 30, 2026.
Explore the full report
As private infrastructure continues to mature, investors face a changing landscape of sector exposures, investment opportunities and risks.
Discover how the evolution of infrastructure portfolios, the AI-driven data center buildout and the dispersion of individual asset returns are shaping the asset class — and what these developments could mean for investment and portfolio decisions.
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