The problem of short hedging of stock index futures, the doubt of examples in the basic book of securities. On 201March 10, the spot price of the Shanghai and Shenzhen 300 Index was 3,324 points. . .
Personally, I think your understanding is correct. Profit and loss of futures positions: 300 yuan × (September 17 futures settlement price-March 1 day futures quotation )× number of short contracts.
March 1 futures quote is 3400 points, so it should be 3500-3400, not 3324 written in the book. I believe that all books are better than no books.