This means that one of the present members will be bounced out. At the end of last week, the lowest-valued Footsie company was United Business Media with a market value of £1.53bn. BA closed in 99th place with a value of £1.59bn. UBM has long been expected to drop out of the index, but BA has plunged into the relegation zone in a matter of weeks. Since 11 September, the shares have nosedived by 117 1/ 4p, or 45%, wiping almost £1.3bn off the value of the company.