Saudi Arabia's Public Investment Fund (PIF) is pivoting from paymaster to investment partner, and the shift is becoming more apparent as more deals are signed.

The memorandum of understanding signed this month with US infrastructure investor I Squared Capital, under which the firm will pursue up to $2bn across digital infrastructure and district cooling in PIF's portfolio companies, is the latest sign of a fund recasting itself as a convener of capital rather than its sole source.

The logic is set out in PIF's 2026-30 strategy, approved in April, which positions the private sector as a partner in sustainable economic development and opens co-investment pathways alongside the fund.

The 2025 results give the strategy its financial rationale. Profit rose 152% to SR65.2bn ($17.4bn), but leverage climbed sharply, with loans and borrowings up 27.2% to SR725.3bn, and total equity slipped 2% as mark-to-market losses on listed holdings outweighed the operating gains.

A fund carrying more debt and greater exposure to equity swings has good reason to bring third-party money into projects it once underwrote alone.

The I Squared agreement is not an isolated move. In June, PIF signed an MoU with Egyptian developer Talaat Moustafa Group to collaborate on residential, commercial, hospitality and retail schemes across its Saudi developments, again with a framework designed to draw further investors into later phases.

As the recalibration gathers pace, there will be hurdles to overcome. Advisers have noted that institutional investors demand ring-fenced structures, audited cost baselines and delivery track records free of scope change. Aramco's Jafurah gas infrastructure attracted a BlackRock-led group precisely because it offered contracted revenue and near-sovereign credit. PIF's gigaprojects offer neither yet. As MoUs morph into specific investment deals, these are the details that will need to be finalised.