If the margin is insufficient, the futures company has the right to balance, whether you lose money or make money. The futures company informs you to chase the margin because your account is short of funds. Generally speaking, futures companies will stabilize after receiving the notice. If the margin is not replenished in time, most futures companies will go flat. Notice is not necessary, and it may or may not be notified. The futures company will not bear the risk of your short position, because if it is not settled in time, it is likely that the futures company will close down because of customer losses.