Advances from earlier this week were stopped at the Qatar Exchange (QE), ending 0.61% lower at 6.981.79 points. Qatar National Bank (QNB) lost insignificantly and closed at QR136.90. Qatar National Bank (QNB), following a detailed compliance audit, has been certified against the global ISO 27001:2005 standard by Bureau Veritas, which issues international ISO-standard certifications. This makes QNB the first bank in Qatar to have its disaster recovery operations certified. Barwa Real Estate was the most liquid share, losing 0.33% at QR29.70. According to Credit Suisse-analyst Mohamad Hawa, Qatar was a preferred market in the GCC due to its high economic growth.