Hedge funds find new favorite short

Details: About $55 billion of global high-yield bonds have been sold short, up from $35 billion at the beginning of the year, Bloomberg reports. That's the biggest short position in high-yield since 2008.

• “The scary part of that trade is that it’s expensive to short cash bonds,” a hedge fund manager tells Axios.
• To short a bond, the investor has to pay to borrow it — as well as pay the semi-annual coupon payments as they come due.
• The upside is also limited since bonds are unlikely to plummet dramatically over a short time, unless they are tied to distressed companies (and often not even then).

Be smart: Shorting high-yield is more frequently a view on the market overall.

• High-yield bonds are at toppy valuations. The ICE BofA high-yield index now yields 4.2%, and it's sat at record lows in the low-4% area since February.
• Investors shorting high-yield are positioning themselves for a potential scaling back of central bank support, Bloomberg says.

Meanwhile, in the equity market, the median short interest in S&P 500 companies is near a 17-year low.