Downside gap as resistance

I noticed something which i overlooked before in the chart of STI. There was a downside gap in late july and this is now acting as resistance. But the downside gap is quite small actually to speak of. Another thing is a reminder to myself, and that is the overall increase in index is not confirmed by increasing volume. In fact, volume has been decreasing steadily. Since increase in index is not confirmed by volume, one should remain cautious.

Straits Times Index Chart:


I noticed that a quite lot of charts in the list of charts which i am monitoring seem to have bottom out and are rebounding already. I do believe this rebound should last til the period where STI and the Dow Jones hit their major resistance level which i mentioned in my previous posts.