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Latest asset allocation quarterly reviews

December 2025 update – Review to 30th September 2025

The latest Willis Towers Watson (WTW) parameter review of the economic assumptions underpinning our platform’s optimised portfolios, has resulted in changes to asset allocations this quarter, with an average portfolio turnover of approximately 7%. The main driver of the reallocations are the shifts in the return and volatility assumptions for UK Fixed Interest and International Fixed Interest, with these asset classes having reductions in allocations whilst Cash and International Equity are the beneficiaries.

Assumption Changes

The assumptions figures are set with a 10-year time horizon and incorporate both short- and long-term (30+ years) perspectives. WTW has revised the reversion period for Fixed Interest, expecting it to take longer to return to its long-term assumption.

This quarter, an increase in the volatility assumption for UK Fixed Interest led to a moderate shift towards Cash, and for higher volatility models, towards Property. With Cash yielding better returns, some allocations were moved away from International Fixed Interest—which has now been eliminated from all models. Because International Equity and UK Equity changed at different rates, there was a shift from UK Equity back into International Equity, undoing last quarter's adjustment.

Summary of movements

  • UK cash: Mean annual gross returns increased by 0.05% to 3.74% p.a. Expected volatility is down 0.01% at 1.24%.
  • UK property: Mean annual gross returns increased by 0.05% to 8.01% p.a. Expected volatility unchanged at 9.65%.
  • UK fixed interest: Mean annual gross returns increased by 0.14% to 5.40%p.a. Expected volatility increased, by 0.72%, to 8.06%.
  • International fixed interest: Mean annual gross returns decreased by 0.02% to 4.64% p.a. with expected volatility decreasing by 0.15% to 6.52%.
  • UK equity: Mean annual gross returns increased by 0.05% to 8.97% p.a. Expected volatility decreased by 0.01% to 17.90%.
  • International equity: Mean annual gross returns have increased, by 0.07% to 9.72% p.a. Volatility has also increased, by 0.02%, to 20.43%.

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