Forward Outrights
For forward outrights, settlement on the value date selected in the trade means that even though the trade itself is carried out immediately, there is a small interest rate calculation left. The interest rate differential doesn't usually affect trade considerations unless you plan on holding a position with a large differential for a long period of time. The interest rate differential varies according to the cross you are trading. On the USDCHF, for example, the interest rate differential is quite small, whereas the differential on NOKJPY is large. This is because if you trade e.g. NOKJPY, you get almost 7% (annual) interest in Norway and close to 0% in Japan. So, if you borrow money in Japan, to finance the trade and buying NOK, you have a positive interest rate differential. This differential has to be calculated and added to your account. You can have both a positive and a negative interest rate differential, so it may work for or against you when you make a trade.

Trading Forex

A currency trade is the simultaneous buying of one currency and selling of another one. The currency combination used in the trade is called a cross (for example, the euro/US dollar, or the GB pound/Japanese yen.). The most commonly traded currencies are the so-called “majors” – EURUSD, USDJPY, USDCHF and GBPUSD.

The most important Forex market is the spot market as it has the largest volume. The market is called the spot market because trades are settled immediately, or “on the spot”. In practice this means two banking days.

Overview 
Foreign exchange, Forex or just FX are all terms used to describe the trading of the world's many currencies. The Forex market is the largest market in the world, with trades amounting to more than USD 3 trillion every day. Most Forex trading is speculative, with only a low percentage of market activity representing governments' and companies' fundamental currency conversion needs. 

Unlike trading on the stock market, the Forex market is not conducted by a central exchange, but on the “interbank” market, which is thought of as an OTC (over the counter) market. Trading takes place directly between the two counterparts necessary to make a trade, whether over the telephone or on electronic networks all over the world. The main centres for trading are Sydney, Tokyo, London, Frankfurt and New York. This worldwide distribution of trading centres means that the Forex market is a 24-hour market.

Foreign Exchange 

This short introduction explains the basics of trading Forex online, a brief explanation of the markets and the major benefits of trading Forex online. There are also two scenarios describing the implications of trading in a bear as well as a bull market to better acquaint you with some of the risks and opportunities of the largest and most liquid market in the world.

FOREX RATES
  Pakistan Open Market Forex Rates 
 Updated at : 13/6/2009 4:13 PM (PST)
  Currency Buying Selling 
   Australian Dollar              65.30 66.30 
 Canadian Dollar                  72.40 73.40 
 China Yuan                         11.25 12.00 
 Euro                                     112.80 114.50 
 Japanese Yen                     0.8180 0.8280 
 Saudi Riyal                            21.40 21.60 
 U.A.E Dirham                       21.95 22.15 
 UK Pound Sterling                133.00 135.00 
                                                                   US Dollar                           80.95 81.25