With most major stock and private market indices generating significant gains during 2021 the wealth of the rich and affluent should also have increased by a substantial amount.

The Cayzer family is one that might have done better than most courtesy of their 48 percent holding in Caledonia Investments plc, a London-listed closed-ended investment company with around £2.7 billion of assets.

According to data from FEfundinfo, Caledonia produced a total return of 44.1 percent...