Unlike the Guggenheim offerings, which are broadly diversified, the iShares corporate-bond ETFs avoid debt issued by banks and other financial firms.

WSJ: Bond ETFs for Investors Worried About Rising Interest Rates

It is the largest-ever U.S. dollar bond issued by a Chinese company, and the biggest corporate debt offering in dollars, euros or yen in Asia ex-Japan in 10 years, Dealogic said.

WSJ: Sinopec Issues $3.5 Billion Bond, Asia's Biggest in a Decade

It is the largest-ever U.S. dollar bond issued by a Chinese company, and the biggest corporate debt offering in dollars, euros or yen in Asia excluding Japan in 10 years, Dealogic said.

WSJ: Sinopec Issues $3.5 Billion Bond, Asia's Biggest in a Decade