FACTBOX-Gulf Arab stock exchanges

DUBAI, July 1 (Reuters) - NYSE Euronext (NYX.N) (NYX.PA), owner of the New York Stock Exchange, has agreed to buy a 20 percent stake in the renamed Qatar Exchange for $200 million.

Following is a summary of the eight regional exchanges:

QATAR EXCHANGE

Market capitalisation $74.7 billion. 42 listed stocks.

The Qatar exchange is 80 percent owned by Qatar Holding, a direct investment arm of the Qatar Investment Authority.

Qatar's benchmark is the second worst performing Gulf Arab index in 2009, falling 5.7 percent, although it remains the best performer since the end of 2007 as the country's strong macroeconomic outlook supports stocks.

Over the past three months, average daily trading on Qatar's index .QSI was 18 million shares, the second lowest in the region.

Qatar's five largest companies are: Industries Qatar IQCD.QA, Qatar National Bank QNBK.QA, Qatar Telecom QTEL.QA (Qtel), Qatar Islamic Bank QISB.QA and Qatar Gas Transport Co QGTS.QA (Nakilat).

DUBAI FINANCIAL MARKET

Market capitalisation $47.4 billion. 66 listed stocks.

One of the three exchanges in the United Arab Emirates, the Dubai market is 80 percent owned by Borse Dubai, a Dubai government entity, with the remaining 20 percent held in free float shares. Borse Dubai also holds a 21 percent stake in the London Stock Exchange.

The Dubai Financial Market Co DFM.DU, operating since March 2000, is the only Gulf Arab stock exchange to go public. Thirty two stocks are listed on its General Index.

Over the past three months, average daily trading on Dubai's index .DFMGI was 609 million shares.

The five largest companies on the General Index by market capitalisation are: Emirates NBD ENBD.DU, Mashreq Bank MASB.DU, Emaar Properties (EMAR.DU), Dubai Financial Market and telecom operator Du DU.DU.

ABU DHABI SECURITIES EXCHANGE

Market capitalisation $78.9 billion. 66 listed stocks.

Of these listings, 62 are included in the ADX General Index. The ADX was established in November 2000 and is wholly owned by the Abu Dhabi government.

Over the past three months, average daily trading on Abu Dhabi's index .ADI was 225 million shares, behind the Kuwait, Dubai and Saudi Arabia benchmarks.

The five largest companies on the Index by market capitalisation are: Emirates Telecommunications Corp ETEL.AD (Etisalat), National Bank of Abu Dhabi NBAD.AD, First Gulf Bank FGB.AD, Aldar Properties ALDR.DU and Abu Dhabi National Energy Co TAQA.AD.

NASDAQ DUBAI

Formerly known as the Dubai International Finance Exchange, Nasdaq Dubai is two-thirds owned by Borse Dubai. The remaining third is held by Nasdaq OMX Group (NDAQ.O).

The exchange was launched in 2005 and has 18 listed stocks, although only one, DP World DPW.DI, is active on a daily basis.

SAUDI STOCK EXCHANGE (TADAWUL)

Market capitalisation $287.5 billion. 129 listed stocks.

The Tadawul, created in 1994, is wholly-owned by the Saudi government. Over the past three months, average daily trading on Saudi Arabia's index was 283 million shares.

The Saudi index is the best performing regional benchmark this year, rising 16.5 percent.

The five largest listed companies on the TASI .TASI are: Saudi Basic Industries Corp (2010.SE) (SABIC), Saudi Telecom Co 7010.SE, Al-Rajhi Bank 1120.SE, Samba Financial Group 1090.SE and Saudi Electricity Co 5110.SE.

KUWAIT STOCK EXCHANGE

Market capitalisation $122.3 billion. 217 listed stocks.

The government-owned KSE is second only to Saudi Arabia in terms of market capitalisation and has the most listings regionally with 217 stocks.

The five largest companies on the index by market capitalisation are: Mobile Telecommunications Co (ZAIN.KW) (ZAIN), National Bank of Kuwait (NBKK.KW), Kuwait Finance House (KFIN.KW), Agility (AGLT.KW) and Gulf Bank (GBKK.KW)

MUSCAT SECURITIES MARKET

Market capitalisation $16.9 billion. 132 listed stocks.

The Muscat Securities Market is wholly government-owned exchange. Over the past three months, average daily trading on Oman's index .MSI was 29.7 million shares. Oman's measure has added 3.1 percent in 2009.

The five largest companies on the Index by market capitalisation are: Omantel, Bank Muscat BMAO.OM, National Bank of Oman NBO.OM, Bank Dhofar BDOF.OM and Oman International Bank OIB.OM.

BAHRAIN STOCK EXCHANGE

Market capitalisation $28.3 billion. 49 listed stocks

The Bahrain market is second-smallest in the Gulf Arab region by market capitalisation. Over the past three months, average daily trading on Bahrain's index .BAX was 3.2 million shares.

Note: market capitalisation figures are based on Reuters data at June 30 closing prices and include secondary listings. Consequently, some companies are counted in more than one market total.

(Compiled by Matt Smith; Editing by Mariam Karouny)