Because it is holding assets, in order to prevent asset prices from falling, take short positions.
3 The optimal number of futures hedging: n =1.02125 * 55000/5000 =1.23, 1 1 copy.
4 Considering trailing hedging, take n =1.02 125 * 55000 * 28/5000 * 27 =1.65,12 copies.
Tail hedging is an improvement of 3, which affects daily settlement and considers the price factor more.