The all-share index TASI closes 0.4 percent higher at just under 6,700 points.
Banking stocks powered the Saudi bourse to a new 17-month high with SABB and Samba Financial Group making the sector's strongest gains.
The all-share index TASI closed 0.4 percent higher at just under 6,700 points, its highest close since Oct. 6, 2008.
The banking index closed 0.8 percent up after Samba gained 2 percent and SABB adds 1.5 percent.
Heavyweight Saudi Basic Industries Corp (SABIC) ended 0.8 percent. (Reuters)