Sopharma grew by 3.07% to 6.04 levs, while Sirma went up 1.59% to 0.96 levs.
The two companies also boosted the BGBX40, which tracks the 40 most traded shares on the Sofia bourse, and the BGTR30, in which companies with a free float of at least 10% have equal weight. The biggest gainer in both indices, however, was venture capital firm Eleven Capital [BUL:11C], which leapt 4.79% to 17.50 levs.
Overall, the BGBX40 index climbed by 0.08% to 168.69 points, whereas the BGTR30 increased by 0.11% to 849.03 points.
The BGREIT index, which tracks seven real estate investment trusts, edged up 0.02% to 189.26 points following a 0.81% rise in Bulgarian Real Estate Fund REIT [BUL:BREF] to 2.48 levs.
Lastly, the BEAMX, which tracks the ten most highly capitalised growth companies, surged 1.19% to 101.52 points on the back of a 5.88% jump in venture capital firm Webit Investment Network [BUL:WIN] to 0.99 levs.
Total turnover on the main market of the Sofia bourse plunged to 935,231 levs ($512,365/478,174 euro) on Wednesday from 4.71 million levs on Tuesday.
Central Cooperative Bank [BUL:CCB] generated the day's highest turnover, of 447,150 levs, from the trade of 271,000 shares. The stock closed flat at 1.65 levs.
(1 euro = 1.95583 levs)