Abrdn has returned to the FTSE 100, while Harbour Energy has relegated from it.
The FTSE Russell Group’s quarterly review means the oil and gas group will drop to the FTSE 250 after mounting pressure on the UK Government to impose windfall taxes on profit-turning energy firms.
It has been referred to as a “yo-yo stock” by analysts because it has already been demoted and promoted this year, and will once again be demoted to the lower ranks.
