UPDATE 2-Saudi Samba Q2 below forecast, brokerage fees weigh

(Adds details, analyst, background)

By Souhail Karam

RIYADH, July 20 (Reuters) - Samba Financial Group 1090.SE, Saudi Arabia's second largest-bank by market value, posted its second straight quarterly profit decline, missing all analysts' forecasts due to a drop in brokerage income.

Profit fell 5.7 percent to 1.22 billion riyals ($326.4 million) in the three months to June 30 compared with the year-ago period, it said in a statement on the bourse website.

The earnings missed all six forecasts of analysts in a Reuters survey last month ranging from 1.25 billion riyals to 1.45 billion riyals. For details, click on [ID:nL30681670]

Samba second-quarter earnings were the worst among the kingdom's top five listed banks.

"(The fall) was due to a decline in income from financial brokerage," Chief Executive Eisa al-Eisa said in the statement. The bank did not disclose brokerage revenue.

The Saudi bourse's benchmark index .TASI has been the worst performer in the Gulf Arab region so far this year and trading volumes dwindled in the second quarter, hitting brokerage fees.

Samba's first-quarter profit was down 5.4 percent also due to lower bourse-related revenues.  Continued...