Sure. So just as a reminder, Ryan, I know you know this, but for the broader group. We use the same process this quarter as we have every single quarter since our IPO. And frankly, since the inception of Owl Rock even when we were a private BDC, we use a third-party evaluation firm. They mark every name every quarter since inception, same methodology, same practices, same discussion.
As you know, when we make a new investment, it goes in at our cost basis. It's typically, call it, 98%, 98.5%, depending. If there's no change to the credit performance or market spreads, that loan will accrete to par over the life of the loan. So there's general upward trajectory on the marks of all of our names, all else equal, because they're marching towards their maturity. The valuation firm that we work with looks at a number of market indices to make the judgments about the market spread in addition to the credit performance. And they look at the same metrics that they've looked at since inception.
In the second quarter, you'll recall, public spreads, which is -- which are the most visible or meaningfully wider about 150 basis points wider and public loan prices were off about 5 points, so a meaningful move in the second quarter.
In the third quarter, and I know this may surprise some they don't stare at these market indices every day, spreads were basically flat in the public markets in the third quarter. depending upon what index you look at, instead of 150 basis point move, there was a less than 15 basis point move wider. And public loan prices were basically flat quarter-over-quarter. Our book continues to have really strong credit performance. And so given that strong credit performance, most of our loans, not only March to -- March to par, but some of them were improving credit performance and had a bump a bit more than that. So basically, the march to par in a relatively flat spread environment resulted in a move on asset prices of about 1 point, which is not a dramatic move, but I recognize that -- there are others out there that had modest NAV decreases. So our asset prices are up about 1 point. When you add in leverage, you get a 2.5% increase in NAV. The average mark in our portfolio is about 97% to have some frame of reference. So it was in a relatively flat environment for market indices, good credit performance, you saw a modest increase in NAV of 2.5%.