The SBITOP added 1.06% to 590.51 points after rising 0.28% on Tuesday.
Six of the seven blue chips of the Ljubljana Stock Exchange (LJSE) rose and one fell on Wednesday.
Nova Kreditna Banka Maribor [LJE:KBMR] was the only blue-chip decliner and the most traded blue chip with 12,889 shares changing hands. The stock fell 1.72% to 1.199 euro ($1.5).
House appliances maker Gorenje [LJE:GRVG] paced the SBITOP gainers, rising 2.44% to 4.2 euro.
LJSE's total turnover fell to 866,430 euro from 1.2 million euro on Tuesday.
($=0.7809 euro)