Airports operator TBI gained 2 1/4p at 61 1/2p on turnover of 8m shares. Ten million changed hands yesterday, leading to revived talk of a bid. The price fell from 61p to 57p last week after reasonable, if unspectacular, profit numbers. French conglomerate Vinci continues to hold almost 15% of TBI, which operates Luton, Belfast and Cardiff airports among others.