So what I would say is the performance was kind of--if you look at it from a big picture perspective, within reason where we would have expected, how we would have expected mortgages to behave. They widened, but the widening was much more contained, as you said, versus the taper tantrum, and we've had discussions on calls with investors over the past two or three years and said that if we got a spike in interest rates, we wouldn't expect a repeat of the taper tantrum, and there are a couple really good reasons. The number one reason is that when we went into the taper tantrum, MBS were at very, very tight levels because of the Fed's QE program that had been announced. Option-adjusted spreads were negative 20 or thereabouts, and there was a lot of room for things to widen. In addition, you had tremendous origination volumes coming through. We had just gotten to brand new lows, refinancing volumes were extremely--pipelines were full, investors--the Fed had just kicked off the program, investors were so comfortable being long, both duration and mortgages. You also had other extenuating circumstances, such as bank capital was kind of changing at the time and the AFS rules were adjusting and the impact of prices on capital, so you had a lot of moving parts back then, of which many of those things are non-existent today or much smaller. So that being said, I think generally speaking performance was somewhat logical, given a big move in rates. What I would say, though, that is interesting was against the backdrop of the very strong performance of other parts of the fixed income market, it gives us more comfort with respect to mortgage performance going forward, so another thing that's different is at the beginning of the taper tantrum, other parts of the fixed income market were widening as well, whereas in this move, that was not the case. So, we do feel like against the backdrop of where the rest of the fixed income space is priced, mortgages are certainly more attractive.