Peter Reed
Analyst · Ladenburg
Thanks, Mike. Let's now turn to Slide 11 to discuss some of the portfolio highlights and what we view as reflective of our total return, special situations investment approach. Today, despite the debtor-friendly state of the credit markets, we have constructed a portfolio comprised almost entirely of senior secured credit instruments with a weighted average current yield of 13.17%. That compares to a weighted average current yield of 12.63% as of the end of Q1.
As of June 30, 99.7% of our invested capital was invested at the top of the capital structure in first lien and senior secured credit instruments. Our overall credit portfolio had a weighted average valuation of approximately $0.73 on the dollar, highlighting the potential for significant price appreciation in addition to the high current yield of 13.17%. That compares to an average price at the end of Q1 of $0.78 on the dollar, reflecting our exit of a handful of assets at a premium to par value.
Echoing back to our previous comments about investing in a concentrated fashion as one of the key tenets of our investment philosophy, the top 5 positions in the portfolio represented 62.1% of the portfolio's NAV as of the end of the second quarter compared to 57.3% as of the end of the first quarter.
Lastly, similar to the end of last quarter, approximately 65% of the portfolio was in investment ideas that are representative of the way in which we intend to invest going forward, after having exited, in whole or in part, a number of both the Full Circle, the MAST-contributed positions and some of the newer GECC positions since the merger closed in November. While we continue to make progress on working out and monetizing the Full Circle portfolio, we have also had a handful of the contributed and acquired positions that have had quicker realizations than we would have anticipated at what we consider to be very attractive IRRs.
Turning to Slide 12. As of June 30, we had 20 debt investments across 17 companies that represent $131.2 million in fair market value and 7 equity investments representing $400,000 or 0.3% of invested capital.
Turning to Slide 13 to walk through our quarterly portfolio activity. On the investment front, during the second quarter of 2017, we made one new investment and 3 add-on investments, deploying $21.4 million at a weighted average price of $0.99 on the dollar and a weighted average current yield of 11.05%. We'd like to note that, again, these capital deployments come at a lower average dollar price and a higher average current yield than our recent monetizations.
Given our view of the current state of the credit markets with record covenant-lite issuance and other borrower friendly market trends, we have been cautious in deploying capital as we believe there will be a more compelling environment ahead. Given our keen focus on downside protection, we believe this cautious stance will be rewarded in the long run as we will have the dry powder to put to work in the inevitable credit market dislocations.
Our new investment in the quarter was in the first lien senior secured loan of a company called Commercial Barge Line, which we acquired in the secondary market at a price of $0.88 on the dollar. Including our post-quarter end acquisitions in this name, we now have a position size of approximately $6.9 million at par value.
On the monetization front, we monetized in part or in full 13 investments at a weighted average price of $1.02 on the dollar and a weighted average current yield of 10.19%, including the complete exit of one legacy Full Circle position at a slight gain. We continue to be quite pleased with the pace of both legacy and new investment realizations. Also important to note, all of the complete exits of Full Circle positions, MAST-contributed positions and positions that we have acquired subsequent to the merger closing have been at a gain.
Slides 14 and 15 provides additional detail on the breakdown of the portfolio in terms of where our investments are located in their respective issuer's capital structures, floating versus fixed rate and industry breakdown. During the past quarter, we had a slight uptick in our exposure to floating rate instruments from 46.9% to 48.6% of the debt investments at fair value. Lastly, the weighted average yield on the fixed rate instruments in the portfolio is 10.09%, a significant margin above the current distribution rate of approximately 7.5% of June 30 NAV.
With that, I will turn the call back over to Mike Sell to discuss recent capital structure activity.