Rathbone £1.2bn bond manager benefits from anti-gilt stance

According to Mr Adams, ethical investors still face a restricted marketplace and having a diversified portfolio becomes more difficult.

He added: "The main factor with ethical investing is that it’s not up to the investment manager or adviser to say what’s ethical – it’s a morality issue that’s down to the investor themselves.

"What one investor may deem ethical another may not, so it takes careful work with an individual to build a portfolio that’s truly ethical for them."

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To understand how investors can benefit from integrating CSR into their portfolios, read FTAdviser's CPD guide, which qualifies for an indicative 60 minutes' worth of CPD.