A further bounce in German yields could be detrimental to U.S. markets.
“Never in my career has there been a better time to buy insurance against your portfolio,” says one veteran of the options market.
"All you need to do to value a company as a sell-side analyst is look at a stock chart," Netflix bear Michael Pachter quipped to CNBC.
Periscope and Meerkat aren't just increasingly popular options for content seekers. They could also form the makings of a highly profitable business.
In April, U.S. equity mutual funds and ETFs saw their biggest outflows since October 2008. But pro traders say that's actually a bullish sign.