Quick look at Top40 (J200) 60 minutes chart:
Top40 currently is very close to long term support around 24100-24200 (horizontal black line). This support going back all the way to August 2008 and in recent history was tested 5 times as resistance and then as support.
Conclusion is that Top40 can bounce from here, especially if we take into consideration 2000 points drop from 11. January this year.
Trade with trend!