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Deleted member 1207404
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This is not risk free, but least risky form of trading.
Yes, normally you can work out the transfer time by looking at the block time of the coin and the number of confirmations the exchange requires.yes the buysell orders are right , that is my concern as well , some of the exchanges are not familiar to me , mostly their transfer time is yet not known . Anyway some of the arbitrage opportunities took place in well known exchanges like bitstamp and cex.io