Thank you for the advice, igigme77. Probably you are right. I only pretend to understand how it works trading with cryptos.

Such a good explanation, Bitwhale. I had exactly the same doubt and want to answer you one little things more.
As you are borrowing these 2 BTC, if you don´t do this margin sell with some leverage even the price of BTC goes down, you dont win anything, is this correct..?

When you say, you borrow 2 BTC, is something you do in the "Exchange" wallet takin these 2 BTC to a lender with a rate fee that he puts or 2 BTC borrow to you the broker..?

The same question I have for buying BTC/USD. If I fund the account in USD and I don´t have any bitcoin, If I want to buy the BTC/USD, have to borrow BTC too. In this case, the return you receive if you win is in USD.

Sorry for the silly question, but In Forex markets I don´t have to borrow anything for trading different currencies and this have me so confused. Thanks in advance.

Hi, everybody!!

I have  aquestion about shorting the bitcoin and sure that you can help me. I have been seeing several videos in Youtube but I don´t have so clear if is necessary for shorting the bitcoin having them in your "Trading" wallet in the exchanfe you use for trade. ¿Do you have to borrow them for can go short..? The normal if you thinnk from here to some days will move downward is to pass the money to (usd or eur) fiat for not be affected your bitcoins for the downmove. I have seen that in the different exchanges, there alre other wallets and in the wallet "Exchange", you can lend and take bitcoins too, but you have todo do this previously shorting or you simply pay a fee if you don´t have the bitcoins in this moment or simply you have passed them to fiat, some currency.

Thanks in advance!!!