The benchmark of Tehran Stock Exchange, TEDPIX, closed slightly below the flatline losing 1,489.42 points or 0.11% to end trade at 1,384,015.
Small caps repeated recent trends and lagged behind as seen in the 0.45% fall in the TSE’s equal-weighted index.
Retail trade declined 19% compared to previous session to reach 39.36 trillion rials ($131 million), accounting for 47% of total trade.
Net capital outflow by retail investors amounted to 3.96 trillion rials ($13m) on Sunday -- the highest in five sessions.
About 6.34 billion shares valued at 42.23 trillion rials ($151m) changed hands at TSE for the day.
Telecommunication Company of Iran was the biggest winner as its shares went up 4.94% to 7,430 rials per share.
Paxan Corporation incurred the biggest loss among all TSE-listed companies and went down 4.96% to 20,890 rials per share.
Mobarakeh Steel Company contributed the most to the benchmark's fall, followed by Nouri Petrochemical Company, Iran Khodro Company and Tamin Petroleum and Petrochemical Investment Company.
Persian Gulf Petrochemical Industries Company gave the biggest boost to the benchmark index followed by Bandar Abbas Oil Refining Company, Telecommunication Company of Iran and Social Security Investment Company.
IFB Dips 0.8%
Iran Fara Bourse main index, IFX, lost 157.19 points or 0.84% to close Sunday trade at 18,659. About 2.79 billion securities valued at 50.41 trillion rials ($180m) were traded at the junior exchange for the day.
Pasargad Insurance Company, Zagros Petrochemical Company, Shahid Tondgooyan Petrochemical Company and Iran Fara Bourse had the most negative impact on IFX.
Gohar Zamin Iron Ore Company gave the biggest boost to IFX, followed by Melal Credit Institution, Iranian Reinsurance Company and Iranol Oil Company.