In view of market volatility, there is one very important point as a retail investor , we must know to do is hedging. You csnnot be closing and opening positions. You will accumulate a lot losses. Assume we long Hk 10 units. The hk indices suddenly  started to drop.  We are not sure of the direction of HK indices . What to do.? We short 10 units of hk indices. of hhk Make sure your shorts and longs do not  offset each other. Both positions dhould be remain  open. Check with your platform provider that long and short can be kept open. In this case, future losses of your long are offset against gains of your shorts. So you remain status quo. Until such time you have a clearer picture you then evaluate and  decide to close off the long or short position.