They know they need to worry
but as trading got underway in Frankfurt
no-one was quite sure what to worry about the most.
(SOUNDBITE) (German) BAADER BANK'S HEAD OF CAPITAL MARKET ANALYSIS, ROBERT HALVER, SAYING:
"Many questions remain open: Brexit, the trade war, the domestic political problems in France and the Italy issue. Markets are saying there won't be a year end rally this year unless the problems are solved."
Earlier Asian shares were down too.
The MSCI index slid 1.5 percent to a near three-week low - the index has spent most of the last four weeks in the red.
Data showing the United States, China, Japan and Germany are all headed for slower growth didn't help.
Japan posted the worst third quarter contraction in over four years as companies slashed capital spending.
That coming after last week's arrest in Canada of Huawei's CFO
which is seen as a huge obstacle to a resolution of a trade war
(SOUNDBITE) (English) KEN ODELUGA, MARKET ANALYST, CITY INDEX, SAYING:
"Whilst Canada is of course is in many ways quite neutral, it's just merely the agency of passing on these charges, China has stated that Canada will face consequences unless she's released so the way that this case goes we'll have a strong impact on how trade negotiations go."
To make matters worse U.S. trade representative Robert Lighthizer said on Sunday there was a "hard deadline" to the 90-day trade ceasefire
Without a successful end to talks by March 1, Washington will impose new tariffs on Chinese goods .
In Europe a fourth weekend of anti-government protests hit French stocks and the economy.
And sterling fell to is lowest since June 2017
after a report that the Prime Minister would delay Tuesday's vote in parliament on her Brexit deal.