Life assurer Prudential shaded 4 1/2p to 433 1/2p. It is said to have imposed a deadline for potential buyers of its near-80% stake in internet bank Egg. Only last week, Egg said it was closing down its French operation with losses of hundreds of millions of pounds, paving the way for the sale of the business which the Pru put up for sale in January. Meanwhile, US broker Lehman Brothers has reduced its target for the Pru from 565p to 555p. Egg rose 4 1/4p to 155 3/4p.