" Open interest" -the capital tied up in futures contracts-is at an all-time high.
“未平仓权益”——期货合约中被套牢的资本仍处于历史高位。
英语百科
Open interest
Open interest (also known as open contracts or open commitments) refers to the total number outstanding of derivative contracts that have not been settled (offset by delivery).
For each buyer of a futures contract there must be a seller. From the time the buyer or seller opens the contract until the counter-party closes it, that contract is considered 'open'.