The main index of Tehran Stock Exchange, TEDPIX, gained 10,140 points and climbed 0.75% to end trade at 1,367,248 points.
Reflecting the performance of small caps, the equal-weighted index was up 1.17%, indicating better performance of small companies for the second session in a row.
Trade commenced under sell-off pressure for majority of stocks with TEDPIX losing close to 13,000 points to recover later as demand rose for metal and refinery stocks.
Prices of 312 ticker symbols hiked on Wednesday, accounting for 62% of the total shares and 152 tickers dropped, eghtesadnews reported.
Value of trade at both the TSE and the junior exchange Iran Fara Bours amounted to 280 trillion rials ($1 billion) and retail traders were responsible for 175.4 trillion rials of deals.
The Social Securities Invested Company (Shasta) accounted for more than 16.3 trillion rials in deals.
TSE Trade
About 15.4 billion shares valued at 156.14 trillion rials ($624.58 million) changed hands at TSE for the day.
Trading at TSE and over-the-counter Iran Fara Bourse starts on Saturday and ends Wednesday.
Pars Paper Industrial Group Company was the biggest winner as its shares went up 10.13% to 6,630 rials per share. Charkheshgar Company incurred the biggest loss among all TSE-listed companies and went down 4.98% to 19,280 per share.
Social Security Investment Company contributed the most to the benchmark's fall, followed by Bandar Abbas Oil Refining Company, Chadormalu Mining and Industrial Company and Parsian Oil and Gas Development Group Company.
National Iranian Copper Industries Company gave the biggest boost to the benchmark index, followed by Mobarakeh Steel Company, Esfahan Oil Refining Company and Tehran Oil Refining Company.
IFX Up 1.51%
Iran Fara Bourse main index IFX gained 252.23 points or 1.51% to close trade at 16,951.01. About 2.77 billion securities valued at 124.62 trillion rials ($498.48m) were traded at the junior exchange.
Esfahan Steel Company had the highest number of traded shares as 309.71 million of its shares worth 1.44 trillion rials ($5.78m) were traded.
Day Bank, Shahid Tondgooyan Petrochemical Company, Iran Fara Bourse and Iran Cultural Heritage and Tourism Investment Group Company had the most negative impact on IFX.
Pasargad Insurance Company gave the biggest boost to IFX, followed by Arya Sasol Polymer Company, Middle East Mines and Mineral Industries Development Holding Company and Zagros Petrochemical Company.