Todd Horwitz, author and founder of Averagejoeoptions.com, says the U.S. equity market is "very close to a top" and could start to see some selling pressure.» Read More
Peter Dixon, senior economist at Commerzbank Securities, discusses the latest euro zone flash composite PMI data and says it shows "significant regional differences".
Patrick Moorhead, president and principal analyst at Moor Insight & Strategy, says he's "very skeptical" of a 2016 Nokia break-even and discusses Microsoft's mobile and cloud strategy.
Aaron Rakers, managing director at Stifel, discusses Apple's strategy in emerging markets and highlights that the group's cash position is "very consistently strong".
David Enrich, European banking editor at the Wall Street Journal, says the data Deutsche Bank's U.S. unit presents to regulators is "completely screwed up".
Daniel Morris, global investment strategist at TIAA-CREF Asset Management, discusses the earnings season and how companies "under-promising" are giving the market a boost.
David Hemming, commodities portfolio manager at Hermes Fund Managers, says that Europe "cannot afford" to upset one of its trade partners when it comes to refined oil products.
Geoffrey Yu, foreign exchange strategist at UBS, comments on the latest minutes from the Bank of England and on how they could affect sterling.
Radek Sikorski, Polish foreign minister, discusses EU sanctions against Russia and says phase three sanctions could be introduced "as early as Thursday".
There's been a "sea-change in attitude" towards Russia and the conflict in eastern Ukraine, which could lead to a more "practical effect", says Radek Sikorski, Polish foreign minister.
Scott Kessler, information technology group director and senior equity analyst at S&P Capital IQ, discusses Apple ahead of the group's quarterly results and says expectations are now ahead of reality.
Shari Olefson, real estate attorney and author of "Foreclosure Nation", says there are still "two major headwinds" for U.S. home sales ahead of the release of the latest existing home sales data.
Andrew Burkly, head of institutional portfolio strategy at Oppenheimer & Co., says the U.S. earnings season has been "really good" so far and discusses which sectors offer the best value.
The Ukrainian rebels are already equipped with modernized weaponry but the sale of military equipment to Russia is difficult to justify, says Carl Bildt, Swedish foreign minister.
Mark Thompson, director for south east Asia research centre at City University of Hong Kong, discusses the Indonesian presidential race as Joko Widodo is expected to be announced as the winner.
The EU should send a clear message to Russia as well as cease all exports of military equipment and technology to Russia, says Edgars Rinkevics, Latvian foreign minister.
Ben Lichtenstein, president at TradersAudio.com, discusses the U.S. market and says while geopolitical risks will continue to dominate this week, economic data and earnings will also matter.
Hanan Ashrawi, executive committee member at the Palestinian Liberation Organization, accuses Israel of distorting the truth and using propaganda and discusses the Palestinian government's position.
Dutch forensic investigators have arrived in Donetsk, Ukraine, says Paul Sonne, reporter for the Wall Street Journal, amid reports of fighting between armed forces and rebels at the airport and railway station.
Charles Robertson, global chief economist at Renaissance Capital, comments on Russian sanctions and explains why "Iran-style" sanctions are unlikely.
Tim Harris, CEO of Harris Capital, discusses BskyB and Julius Baer and says BskyB's repositioning is "much cleaner for shareholders in the long run".
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."