Why are client's shares which he/she sold from Portfolio shown as negative in Positions tab?

Why are client's shares which he/she sold from Portfolio shown as negative in Positions tab?

  1. The positions tab shows all the positions taken by client today.
  2. A negative quantity indicates a sell transaction whereas a positive quantity indicates a buy transaction.
  3. The shares that sold will be settled on T+2 day & the funds will be available for withdrawal.
  4. However, 80% of the value of shares sold can be utilized to make additional trades.