Lending (aka CFD) rates are trending down as I predicted earlier.
The trend will reverse in the short-term if there is high volatility (or as lenders withdraw funds), but I think we are on a long-term downward trend to approximately 20% APR (or 0.005%/day).
If you look at the history of the BTC rate (historically as low as 2-5% APR), it is possible that US lending rates could drop as low as 5-10% APR.
If US lending rates really go that low as 5-10% APR in the future, then it is not much incentives for people to lend rates here.