• Widespread appetite for embedding sustainability into asset allocation decisions. Nick Hutton, head of UK iShares & Wealth at BlackRock, said: "What we are seeing as the UK wealth management industry evolves is a fundamental and irreversible shift towards a 'whole portfolio' approach that aims to identify true sources of portfolio returns that is putting a spotlight on the role of index funds and ETFs. "Faced with fee compression, regulation, and the centralisation of business models, indexing can help clients build more efficient, more nimble portfolios than ever before." Looking more closely at these three key market trends, BlackRock said the pandemic-related market turmoil of early 2020 "provided the most significant stress test of the resiliency of bond ETFs".