What are now the sites offering leveraged trading?

[zby]

Are there ways to determine how much reserves they have?  Like it was with bitcoinica and the *.

[lucif]

bitfinex

[zby]

Currently their lending rates are: "69.9% a year for dollars, 23.9% a year for bitcoins" - anyone knows how it was historically?  Not bad rates by the way.

[lucif]

They offer customers to lend funds for traders. Customers determine rates.

And I dont find that rates good.

[Ichthyo]

They offer customers to lend funds for traders. Customers determine rates.
And I dont find that rates good.

supply and demand

[Ichthyo]

What are now the sites offering leveraged trading?

Are there ways to determine how much reserves they have?  Like it was with bitcoinica and the *.

Also we should mention ICBIT.se
They offer futures trading, on leverage (as usual).
With futures, users trade against each other, so the platform doesn't need reserves.
Positions are "marked to market" every evening, i.e. gains/losses are continuouosly transferred.