Fx market opens with dollar trading at n380

It seems like you're referring to the foreign exchange market, also known as the forex market. If the dollar is trading at N380, that means the value of the US dollar (USD) is equivalent to 380 Nigerian naira (NGN).

In other words, if you were to exchange 1 USD for Nigerian naira, you would get approximately 380 NGN.

Please note that currency exchange rates can fluctuate constantly, so this rate may change rapidly. If you're interested in knowing the current exchange rate, I can suggest checking a reliable currency conversion website or a financial news source for the latest updates.