Price gap down because of bonus shares

I find that stock price will not be adjusted as a result of bonus shares (e.g. 1 for 10) such that a gap appears in the price chart. How should I accommodate these gaps when doing backtest and scanning as a result of this kind of corporate action? Can I choose to display adjusted price in setting? Generally, price in other data providers like Bloomberg will automatically adjust and so will not display a gap in price.

Thanks May. Although we automatically make adjustments for some exchanges (eg US, ASX) unfortunately we don’t receive the data for all the exchanges. If you can contact [email protected] with the ticker symbol and exchange that requires adjusting we will make the required adjustment. Apologies for the bother.