The stock market closed the week down by 0.28% to 8542.37 points on a modest volume of TND 2.4 million, according to stockbroker Tunisie Valeurs.Essoukna shares were the session's best performers, rising 4.2% to TND 1.490 on almost zero volume.City Cars shares also rose by 1.2% to TND 12.250, generating TND 10,000 in trading. Since the beginning of the year, the share price has risen by 14.5%.SERVICOM shares were the biggest losers of the session, falling 4.6% to TND 0.210, with a trading volume of only TND 1,000. The stock has been stable since the beginning of the year.ASSAD shares continued their downward trend, falling 3.2% to TND 0.900 on a volume of TND 5,000. The share price has fallen by 17.4% since the beginning of the year.SIAME shares topped the volume charts, rising by 0.3% to TND 3.740, with a trading volume of TND 355,000, or 15% of the total volume traded during the session.Source: EN - Agence Tunis Afrique Presse