Jon Stainer, President EMEA at Repucom, discusses Wimbledon's social media profile and the importance of brand engagement.» Read More
Tatiana Orlova, senior economist for Russia, CIS and Israel at RBS, discusses the possibility of Russian capital controls and the ruble weakness.
Gautam Batra, investment strategist at Signia Wealth, discusses the U.S. and European market sell-off and says Europe has probably seen the rump of it now and is now good value.
Ben Lichtenstein, president at TradersAudio.com, says the recent U.S. pull-back is small and was anticipated and adds that there are great buying opportunities at this level.
Michael Purves, chief global strategist at Weeden & Co., discusses how European weakness will impact U.S. earnings and says small caps' performance will be a big theme of this earnings season.
Prices for diamonds and other gems are rising at the moment says Steve Bennett, CEO and gem hunter at the Genuine Gemstone Company, especially for smaller, subtler stones.
Edmund Shing, global equity portfolio manager at BCS Financial Group, says market volatility is driven by global issues as global growth is "not going great guns".
Peter Hutton, energy analyst at RBC Capital Markets, discusses the outlook for oil prices and says the market fundamentals haven't changed as much as sentiment has.
John Hardy, foreign exchange strategist at Saxo Bank, says the sterling rally should "fade really soon" and discusses the outlook for the euro/dollar.
Ian Stannard, head of European foreign exchange strategy at Morgan Stanley, says sterling could come under pressure as the market has pushed back its expectation of a BoE rate hike.
Luke Johnson, chairman at Risk Capital partners, discusses the U.K. consumer mood and says the biggest concern is the prospect of an anti-business government being elected in May 2015.
David Page, senior economist at AXA Investment Managers, discusses the U.K. economy and says the Bank of England is unlikely to raise rates until May or June 2015.
John Nugée, associate fellow at Chatham House, discusses the new normal for central banks, as their balance sheets are "abnormally large at the moment".
Bill Grimsey, former CEO of Iceland and adviser for the Labour Party, says U.K. consumers cannot afford for Tesco "to be run in this manner", adding that the industry "has become bloated".
Alex Castelli, office managing partner at CohnReznick, says the U.S. Jobs Act has created an opportunity for middle market companies to take advantage of the "surging" IPO market.
Avery Ash, director of federal relations at AAA, comments on the crude oil and gas price drops in the U.S. and says they represent "significant savings" for consumers.
Greg McBride, senior financial analyst at Bankrate.com, comments on the latest Federal Reserve minutes and says the central bank is "not in a hurry" to raise rates.
Apostolos Bantis, credit analyst at Commerzbank, discusses emerging market credit, and how it may perform given the Fed's latest policy minutes.
Melanie Baker, U.K. economist at Morgan Stanley, says that although recent data shows signs of cooling in the U.K. economy, growth remains at a "good pace".
James Ashley, chief economist at RBC Capital Markets, says the euro area could easily tip into deflation territory and is set to experience a long period of low growth.
Ylan Mui, financial reporter at The Washington Post, comments on the Fed minutes and says the key will be how much debate there was over changing the language on the first rate hike guidance.
Carolin Roth is co-anchor for Worldwide Exchange and based in London. Fluent in both German and English, she was previously CNBC's correspondent in Zurich.
Wilfred Frost is co-anchor for Worldwide Exchange, joining CNBC in 2014.
Seema Mody is co-anchor for Worldwide Exchange, having joined CNBC in July 2011 as a reporter focusing on market-moving stories that impact Wall Street.