And if I could just add to that, a couple of things we talked about earlier on the call, Doug. One was the fact that you've got obviously prepayments very, very high. But you also have rates very low and the possibility of extension risk, especially as more and more of the mortgage universe is refinancing lower and lower coupon. If that -- all of a sudden, interest rates reversed, you're going to have some low coupon mortgages expanding tremendously. So we're at this real balancing act right now, where it is very dangerous environment, but on the other hand, it's also an environment, where, for example, we talked about how we made money on our longs and our shorts in TBAs, right. I mean, this is -- made money on our shorts, even though mortgages had just a tremendous quarter, so it just shows you that in this type of environment, yes, if things move a lot, it's dangerous, but as an active trader, and as a company that's not afraid to put these alpha generating trades on, I think that's just a much higher quality way for us to generate earnings, as opposed to dialing -- just mortgage exposure at all times are diving a leverage up to that maximum, whatever you want to call it, probably 7 to 1 on net mortgage exposure. I don't know if we ever been much higher than that 9 to 1 on leverage; I mean, that's not the way that we think is the best way to make money for shareholders in an environment like this.