You can provide liquidity to traders that want to margin trade on bitfinex. You lend them your USD or BTC. And you get a certain percent per day for doing so.
I would suggest using the margin bot, you can maximize your profits with that.
I guess those option is the same that poloniex has,margin trade and able to lend for a fee soo sure its good as the altcoins and even bitcoin keeps up and down these days the fee is 0.01% at poloniex meaning almost nothing and there are around 400btc to lend.
I'm relatively sure it is the same. The difference is that bitfinex is doing this since much longer time and the profits are higher, especially for lending out USD.
How much % are present into the bifinex into those system of loans ,can you let me know to choose or not to open an account there thanks.At poloniex the interest at almost all currencies is now very low as there isnt a big pump coin to move on.