Investment through long-term equity fund (LTF) and retirement mutual fund (RMF) could also boost the market, it said.
The house expected the index to move in the range of 1,310-1,340 points next week.
To Asia Plus Securities, the next new high could be 1,333 points.
The SET index, now the world's 8th best performer and Asia's 2nd best this year, last week hit a new 16-year high at 1,324.04 points, bolstered by some progress in the fiscal cliff talks as well as the approval of a bailout to Greece.
The previous new high was 1,314 points.