Record Deals, Shrinking Premiums: Ageing Moved Pensions to Insurers — and a 6% Long End Now Sets the Price

Three separate datasets say the same thing: the ageing liability is genuinely migrating to insurers while the money flowing with it is getting smaller. WTW's De-Risking Report 2026 puts UK risk transferred to insurers and reinsurers at £70bn for 2026, up £10bn or 15% on 2025, with bulk annuities above £50bn and longevity swaps of up to £20bn. LIMRA counted $339.8bn of US single-premium pension risk transfer assets at the end of the second quarter, up 9% year on year. But LIMRA also counted only $3.0bn of premiums written in that quarter, down 26%, even as the number of contracts sold rose 21% to 176.

Record deal counts producing shrinking premiums is a price story, not a shortage of buyers. Lane Clark & Peacock's analysis of insurers' half-year results puts UK buy-ins at a modest £10.2bn in the first half of 2026 and attributes the shortfall to the absence of any £1bn+ transaction — while noting that pricing was 3% better than at the start of the year. The same arithmetic runs in the US, where the second quarter produced 176 contracts but no deal above $250m, after a first quarter that printed $3.8bn, down 31%. The pattern implies schemes are waiting for better rate prints rather than walking away from the market.

Insurers are repricing upward, which is why volume can fall without demand disappearing. October Three's October 2026 update put duration 7 annuity purchase rates at 5.88% and duration 15 at 5.99%, the highest in years and up 120 and 112 basis points since January 2026. A higher liability discount rate reduces the cost of a buy-in for the scheme and raises the rate at which an insurer discounts a 30-year liability, so the same move makes insurers more profitable and less affordable at the same time. Year-end execution now matters more than the annual forecast.

The economics of ageing risk sit one step further out. Insurers write the annuity, and the capital market supplies the money that lets them write it. At the September Rendez-Vous the reinsurance market made its choice explicit: more than 90% of 93 respondents ranked life and health, financial solutions or specialty as their top capital allocation priority, and only 8% chose property and property catastrophe. Within life and health, longevity was the highest-ranked line at 41% of respondents. Fitch's read was structural rather than a reaction to soft property pricing — longevity carries lower capital intensity and better returns than mortality or morbidity in the same book.

Here is what the ageing narrative usually misses. The fee pool in this trade does not sit with the people managing pension money; the fee pool sits with the people underwriting the liabilities. UK asset managers held £11.1tn at the end of 2025, of which £4.36tn was institutional and £2.81tn sat with pension funds, yet the notional liabilities hedged through LDI were £880bn in 2025, essentially unchanged on the year before. The money has not left the asset managers, but the fee engine that ageing creates is landing somewhere else.

Now the loop closes, and it is the part that is not priced. Insurers taking on 30-year pension liabilities fund them with long-dated private credit and real assets, because the private credit bid keeps credit spreads tight enough for the liability discount rate to work. The Financial Stability Board sized private credit at $1.5tn to $2tn at the end of 2024 and named the structural fault: semi-liquid and perpetual structures offering periodic liquidity while holding illiquid, long-dated loans, redemption limits of 5% of net asset value, and investors such as insurers and pension funds exposed to capital calls that can force sales of liquid public assets.

In the next two quarters the transmission is mechanical. With duration 15 annuity purchase rates at 5.99% and a 30-year Treasury at 5.61%, insurers have room to concede and a reason to: October Three expects them to compete harder into year-end to hit annual targets. The US pipeline — no deal above $250m closed in the second quarter, one buy-in contract written, premiums down 26% — should convert in the fourth quarter if rates hold. In the UK, the £50bn-plus bulk annuity forecast needs the 2025 record of 367 transactions repeated at a materially larger average size.

Over one to three years the risk does not disappear, it changes owner. Defined benefit schemes are being closed out at record speed — 367 UK buy-in transactions in 2025 — and the Pension Schemes Act 2026 pushes defined contribution schemes toward offering or arranging a default decumulation pathway. Longevity then moves to whichever balance sheet will hold a 30-year promise. If that balance sheet is an insurer running a private credit funding model, the fee pool stays concentrated in a handful of names. If it is a pension fund or a bank, it does not, and the private credit managers lose their largest buyer.

Pensions are ageing into a market whose price is set by the long end, and the long end has never been more expensive. The transfer is real — £70bn forecast in the UK, $339.8bn of US assets, reinsurers rotating capital into longevity, a private equity consortium committing £2bn beside them — but the premiums flowing with it are shrinking, and the reason is arithmetic: at 5.99% discount rates the annuity writer cannot charge a scheme less than the market will bear. That is why the trade belongs to the risk-transfer specialists and the private credit platforms, and not to the asset managers whose fee pool is pinned to a flat £880bn of hedged liabilities.