Matthew Roden, executive director of biotechnology equity research at UBS argued biotech stock valuations are still attractively valued even after their run higher.» Read More
Nicholas Spiro, managing director at Spiro Sovereign Strategy, says there's been a "notable shift" in the Russia-Ukraine crisis as Kiev is now under increasing pressure to negotiate with separatists.
Stephen Cohen, chief investment strategist at iShares EMEA, says quantitative easing from the ECB would not make that big a difference on euro zone yields but would push risk assets higher.
Matthew McCormick, principal and portfolio manager at Bahl & Gaynor, says "story stocks" have driven U.S. markets higher and that it may be time to take some profits on them.
John Silvia, chief economist at Wells Fargo, discusses the U.S. economy and the labor market and says it could take several years for the country's structural unemployment to work itself out.
Curt Custard, head of global investment solutions at UBS Global Asset Management, says that there are a lot of structural reasons for the demand for bonds to be strong over the medium-term.
Oliver Lamb, managing director at Ailevon Pacific Aviation Consulting, discusses Air China ahead of the group's earnings and says that the airline is facing a "perfect storm" right now.
Mattias Westman, founding partner at Prosperity Capital Management, says a breakthrough is unlikely to happen at the talks between Putin and Poroshenko and discusses Germany's position.
Douglas Webber, professor of political science at INSEAD, comments on the political crisis is France and explains why President Hollande would survive a confidence vote.
Al Clark, global head of multi-asset at Nikko Asset Management, says that although it is a "difficult time" for asset allocation, there are "pockets of value" - including Japanese equities.
Otilia Dhand, vice president at Teneo Intelligence,discusses the upcoming talks between Russia and Ukraine's leaders and what the dissolution of the Ukrainian parliament means in the short-term.
Shari Olefson, real estate attorney and author of "Foreclosure Nation", says house builders are seeing more opportunity in renting which is a "troubling" trend in the U.S. real estate market.
Hessam Nadji, CSO of Marcus & Millichap, says U.S. commercial real estate and housing has seen an "impressive" recovery.
Michael Gurka, founder of BruinHill Partners, says precious metals and commodities have seen a short trend which is likely to continue.
Martin Leclerc, CIO and portfolio manager at Barrack Yard Advisors, says U.S. stocks are expensive and will be unlikely to deliver more than 3 percent total return above inflation over the next decade.
Eugen Weinberg, head of commodity research at Commerzbank, says oil prices have not risen significantly despite geopolitical tensions because the market is still "well supplied".
François Mallet, global head of strategic co-operation at Kepler Cheuvreux, says European stocks will see a 5% percent rally in the short-term on the prospects of further stimulus from the ECB.
Michael Kurtz, global head of equity strategy at Nomura, says Asian stocks are seeing a rise because investors are confident in the consumer recovery in the U.S., which will support products produced in Asia.
Surani Fernando, EMEA deputy editor at Biopharm Insight, says she was "surprised" at the value of Roche's $8.3 billion purchase of Intermune.
Valentijn Van Nieuwenhuijzen, head of strategy at ING Investment Management, said quantitative easing by the European Central Bank is "getting closer".
Markets have built up a lot of expectation ahead of the speeches from central bankers at Jackson Hole, says Todd Horwitz, author and founder of Averagejoeoptions.com, with all eyes are on Fed Chair Janet Yellen¿s comments on Friday.
Chatterley is CNBC’s European reporter covering key business and political events, as well as regular Eurogroup and EU leaders summits in Brussels.
Wilfred Frost is anchor of Worldwide Exchange, joining CNBC in 2014.
Seema Mody is a CNBC reporter and host of the "Trading the Twicker" segment on "Fast Money."