Shares in the group soared 19% to 291.5p in late trading in London. This morning, its price dropped back slightly to 286.5p.
As reported yesterday, the shake-up, which follows a review of the business, will reduce the speed of growth of new internet portal koko.com. However, the group said it will concentrate resources on its successful localised directories and radio station pages instead.
GWR said the resulting restructuring of its business would result in 46 job losses.
The 46 staff will be made redundant or redeployed throughout the group.