The £5.3 Billion Gambit: Can the HICL–TRIG Merger Really Reward Shareholders?
When HICL Infrastructure and The Renewables Infrastructure Group (TRIG) announced plans to combine, creating the UK’s largest listed infrastructure trust with more than £5.3 billion in net assets, the sector finally saw the consolidation commentators have been predicting for years. It represented exactly the sort of scale merger that infrastructure investment bankers love to describe as “inevitable.”
But public markets are not investment banks. Within minutes of the announcement, HICL’s share price slid 8% while TRIG’s jumped more than 10%. Investors had delivered an unmistakable verdict: this deal may be clever in theory, but the price looks wrong.
What follows is a sober assessment of the risks and rewards for ordinary investors, and the bigger question the sector now confronts: does scale fix undervaluation, or simply dilute quality?
HICL 1yr Chart
Renewables Infrastructure Group 1 yr Chart
Why this deal is happening now?
Both trusts have been trading on unusually wide discounts to NAV, a frustration echoed across the listed infrastructure space. HICL, typically regarded as the benchmark for low-volatility, inflation-linked cash flows, has been stuck at about a 24% discount. TRIG, with its exposure to merchant power prices and weather-driven generation risk, has traded even wider at roughly 34%.
HICL did attempt to address the discount through conventional capital management tools: around £725 million of asset disposals over two years and an expanded share buyback programme. Investors broadly welcomed the discipline and, for a period, it stabilised the discount and the trust’s financial metrics. That progress is central to the transaction now on the table; without it, HICL would likely not have been in a position to lead the combination.
In that context, the timing of the merger becomes clearer. HICL first had to improve its own valuation and balance sheet resilience before contemplating the addition of TRIG’s more volatile portfolio. Only once that preparatory phase was materially complete did the combination become feasible. The groundwork was a prerequisite; without it, the proposed transaction would not have been structurally realistic.
Deal structure
TRIG is to be wound up. Its assets are transferred into HICL in return for new HICL shares based on a formula asset value–for–formula asset value exchange as at 30 September 2025. The “headline maths” equates to roughly 0.71 HICL shares per TRIG share
Two extra financial levers shape the deal:
Assuming full cash take-up, the combined business will be owned 56% by HICL shareholders and 44% by TRIG shareholders.
This explains the market reaction. TRIG holders , the more heavily discounted party receive a liquidity and valuation uplift. HICL holders, the higher-rated party provide it.
Investors saw it immediately, and priced it accordingly.
The strategic case (according to management)
