Société Générale Asset Management joint managing director Nicola Horlick has called Virgin Direct's bluff and accepted its challenge to bet £6,000 that she can beat the FTSE All Share index.
The move follows a series of stunts designed by Virgin Direct to bait what it calls "the financial old guard".
Virgin enlisted racing tipster John McCririck to deliver the challenge.
If Horlick fails to beat the index by two percentage points each year for the next three years, she must pay £6,000 to a charity chosen by Virgin.
If she wins, Virgin will pay an equal sum to a charity of her choice.
But Virgin may have met its match with Horlick. Not only has she agreed to take up the challenge, she has issued one of her own.
Horlick is challenging Virgin to beat the FTSE All Share index with its tracker in each of the next three years or pay £6,000 to charity.
City of London bookmaker City Index is quoting odds of 10-1 that SocGen will win.