By Muhammed Ali Gurtas  

ANKARA

Turkey's benchmark stock index ended the week up 0.54 percent to close at 91,687.04 points on Friday.

Starting the day at 91,503.26 points, Borsa Istanbul's BIST 100 index surged 490.73 points from the previous close.

Climbing over 92,000 threshold, the BIST 100's daily low was 91,262.53 points during Friday's trading -- 57 stocks on the index rose, 30 fell, and 13 were flat compared to the previous close.

The daily trading volume of the benchmark index was 4.77 billion liras ($879 billion) while its market value totaled some 595 billion Turkish liras ($109 billion). 

Friday's trading volume leaders were the country's national flag carrier Turkish Airlines, private lenders Garanti Bankasi and Akbank.

Turkish conglomerate Koc Holding ($6.95 billion), Garanti Bankasi ($6.08 billion) and energy giant Tupras ($5.62 billion) were the most valuable companies on the BIST 100.

Shares of furniture manufacturer Dogtas Kelebek Mobilya enjoyed the highest increase on Friday -- up 7.38 percent -- while stocks of conglomerate Tekfen Holding -- involved in oil, power generation, construction and infrastructure -- ended the day with the worst performance, falling 3.44 percent.

One U.S. dollar traded for 5.4840 Turkish liras, versus Thursday's close of 5.4410. 

The euro/lira rate was 6.3190 by market close, up from 6.2660 at the previous close. 

One British pound traded for 7.0340 Turkish liras, as the GBP/TRY exchange rate was 6.9610 at Thursday's close. 

In Borsa Istanbul's Precious Metals and Diamond Markets, the price of one ounce of gold was around $1,292.50 at daily close, versus $1,293.00 at the previous close. 

Hovering between $60.09 and $62.48 during the day, a barrel of Brent oil was sold for $60.70 as of 6.15 p.m. local time (1515GMT) on Friday.