Why does my P&L look wrong after the bonus issue?

After a bonus issue, the stock price is adjusted on the ex-bonus date to reflect the increased number of shares.

For example, in a 1:1 bonus issue, the share price is reduced by half.

Bonus shares are credited within 1–2 working days after the record date. Until these additional shares appear in your holdings, your P&L may temporarily look lower. This is only a timing difference—once the bonus shares are credited, the total value of your investment remains unchanged.