Singers Richard Hawley and Lou Rhodes have seen the biggest surges in sales of all the acts featured on the Mercury Prize shortlist, figures show.
Coles Corner is Richard Hawley's fourth album
Sheffield-based Hawley saw a 336% increase in sales of his album Coles Corner, according to retailer HMV.
And Lou Rhodes' solo debut Beloved One sold 320% more.
Arctic Monkeys were the winners of the prize with their album Whatever People Say I Am, That's What I'm Not, which had already broken sales records.
During their acceptance speech, the band's Alex Turner joked: "Someone call 999 - Richard Hawley has been robbed."
The Arctic Monkeys themselves saw their sales rise 66%, but they had already sold over a million copies of their album.
In all, nine of the 12 albums on the shortlist saw clear sales increases, with the other three - Through the Windowpane by the Guillemots, Black Holes And Revelations by Muse and Eraser by Thom Yorke - released too recently for a comparison to be made.
However, with the exception of The Editors' The Back Room, these albums were beginning from a comparatively low sales base.
Rhodes was one half of 1990s musical duo Lamb
HMV spokesman Gennaro Castaldo of HMV said the Mercury awards have a "halo effect" on sales.
"This year we're expecting an even bigger sales lift, as more people are now also downloading and buying online," he added.
Last year's winner, Antony and the Johnsons, enjoyed a six-fold increase of sales of their album I Am a Bird Now in the weeks following their win.
In 2002 Miss Dynamite's A Little Deeper registered a 500 percent increase over a similar period.