There's loads of things to worry about if you are a bear such as valuations, China, US yield curve flattening, economic woes in Europe, the recent collapse in freight rates etc. Here is an apt summary of these views from the pro's:
Things to Worry About as a Bear
BlackRock CEO Issues An ‘Urgent’ $34 Trillion Warning That Could Trigger A
Bitcoin Price Earthquake
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The chief executive of the world's largest asset manager BlackRock has
issued an "urgent" warning over the growing $34 trillion U.S. debt
pile—which some t...
19 minutes ago