Qatar's fourth-biggest lender by market value, Masraf Al Rayan has reported a 43% surge in Q3 net profit to QR306.5m ($84.3m) from QR214m in the same period a year earlier, driven by the lender's rapidly expanding customer base, Reuters has reported. Net profit in the nine months up to the end of September rose 52% to QR911.5m, the bank said in the statement.