Dave Dullum
Analyst · Ladenburg
Thank you, Mike, and good morning to everyone. So I'm pleased to report again that Gladstone Investment had a pretty strong fiscal quarter ending 6/30/17, the first quarter of the fiscal year, and with consistent quarter-over-quarter net investment income and successful exit of one of our portfolio companies with a gain. Our net asset value, NAV, which is effectively our book value, declined slightly by about $0.07 per share. And this was primarily as a result of a previously announced issuance of around 2.3 million shares of common stock, in which we raised about $20 million. Also, we paid a supplemental distribution of $0.06 per common share in June, and we raised our regular monthly distributions to common stockholders to $0.064 per share or roughly $0.77 per share annually.
I might add here that, while this is obviously a quarterly call and we do look at performance quarter-to-quarter, from a management perspective we always take a longer look and view on our results for the full fiscal year, which, of course, ends in March. So we will see variations relative to each quarter.
Now to put these results in perspective, it's always helpful to reiterate what our business model is, and which is where we focus on the buyouts of U.S. businesses, generally with annual earnings before interest, taxes, depreciation and amortization, otherwise known as EBITDA, and that value is generally between $3 million and $10 million of EBITDA. The financial structure which we use for funding these buyouts consists of secured first or second lien debt, and it's in a combination with direct equity investment so that we end up with a significant equity ownership position in the company when the buyout is made.
We also like to really indicate how we differ from traditional credit-oriented BDCs in that the target proportion of the equity to debt for our investments in our portfolio at cost is generally around 25% equity-75% debt. This compares to most other BDCs where you'll see that their portfolios are around 10% equity and 90% debt. So we consider that a significant differentiator and, indeed, is reflective of the approach that we take to our business in the buyout arena.
Now as I say, this is intentional on our part and it's our strategy and the way in which we believe we're creating shareholder value within the GAIN structure. And that is that the debt portion of the investments that we make provides the income which we will pay out and, over time, grow our monthly distributions. And as I mentioned, we increased our monthly distributions to an annual run rate of $0.77 per share. So and along with the debt investment, as I also mentioned, we own a significant equity position, and with our strategy focused on increasing the equity value of our portfolio companies to provide capital gains and other income, indeed, when we exit.
Now as we execute this strategy, these potential gains and the other income that we generate at the same time may then be distributed to our stockholders in the form of a supplemental distribution, as we're calling it. And to this point, as I mentioned earlier again, we paid the first of such supplemental distributions in the amount of $0.06 per share to common stockholders in June. So we are clearly doing as state in our strategy: generating income to continue growing our monthly dividends and also the generation of realized gains to help drive a supplemental distribution to shareholders.
And a further advantage to this approach is that, as a provider of the significant portion of the equity and the debt in the transactions that we do, we believe we have flexibility: first, in how we establish the terms, meaning the interest rate on the debt securities, which allows us also some influence over the companies that if we have a downside issue we are able to do some work in managing and downside protection. This structure provides also, frankly, a means of reducing the risk of our debt being refinanced prior to maturity in periods of yield compressions, some of which we have experienced certainly recently. We've not had to do any of that within our portfolio, where we've been refinanced out.
Now I'd like to just again do a quick historical performance scorecard, if you will, and to provide an update on GAIN's historical performance since 2010, which we highlighted in greater detail during our earlier year-end 2017 call, which was back in May. So just to update, from March of 2010 through June of 2017 we have accomplished a few things, one of which we've had excellent growth in net assets, which allowed us to increase our NAV, net asset value per share, by $1.14, which is from $8.74 in 3/31/2010 to $9.88 at 6/30/17.
Secondly, we've increased the annual run rate of our regular monthly distributions by $0.29, which is from $0.48 back in 2010 up to $0.77 currently. And we've been delivering on our buyout strategy by paying our first, essentially, supplemental distribution in June 2017 of the $0.06 per common share I mentioned earlier. So we feel pretty good about the overall performance over the last 7 years and certainly look forward to continuing this progress going forward.
So as we continue certainly with these new buyouts and building our investment portfolio, we also have managed, obviously, the way in which we exit portfolios or turnover, if you will, which is consistent with our strategy. We obviously need to be guided by market conditions, meaning that we will always be assessing the risk and return in continuing to say hold an investment versus taking an opportunity to exit that investment, and being sensitive to preserving the portfolio of assets, which obviously is producing the income for our monthly distributions. So we're not just going to go and exit for the sake of exiting. We always need to be cognizant of the continuing income stream to generate distributions monthly to our shareholders.
Now since our inception in 2005, beyond the income part, we've had some liquidity events in our buyouts and this is where we've achieved an aggregate cash-on-cash return on the exit of the equity portion of those investments, and that's been approximately 3.4x, which has caused a total increase to our net assets of about $107 million over this period on these exits. And during this current quarter, we did sell one investment, a company called Mitchell Rubber, resulted in a realized gain and other income, which is always part of our theory, and a repayment of our $13.6 million of our debt investment that we had in that company at par.
So from time to time also we may need to right-size capital structure in a portfolio company, which would allow us to provide operating flexibility to improve that company's future success. Again it comes back to our ability to have some influence over our investments so that we are able to do the right things by our portfolio companies and continue to maintain and grow value going forward.
Now in addition, obviously, as we grow, we will need to raise equity capital, and we always believe we're doing it in a responsible manner. Since our IPO, we have raised common equity in 3 secondary market transactions with the most recent one being in May of this year when we issued 2.3 million shares, which is inclusive of the over-allotment, which was exercised in June, and at an offering price of $9.38 per share. This offering resulted in gross proceeds of about $21 million and net proceeds, after commissions, discounts and estimated costs, of about $20 million to GAIN. Now on the net price after commissions and discounts per share of $9 was a discount of approximately 9.5% to our estimated NAV at the time of the offering. We believe that the offering follows our responsible capital raising efforts and we will do it as necessary, but again, we've been able to do it responsibly. And our results to date have shown that we've been able to invest those proceeds, when we've raised them before, pretty constructively and, indeed, has resulted in, as I mentioned already, a growing of our NAV while we have obviously been generating capital gains as well.
Now the main part of our business obviously is out there in finding new opportunities and making new buyouts. So we always have to be mindful that when we sell a portfolio company it could reduce the income-producing asset, and the income is very important, as mentioned, to maintain monthly distributions. Therefore our deal-generation activity, the one of adding more assets to the portfolio, must continue and will have a very high priority. Now to generate new investment opportunities, usually we're out there calling on independent sponsors. These are folks that see deals that we may not see otherwise. We're calling on the middle market investment bankers and other sources to create somewhat of a, we believe, proprietary flow of investment opportunities.
We never depend on others to negotiate our structure, our investments. Generally, our investments will always include partnering with the management teams when we're buying a business, and we do believe that our financing package, which includes both secure debt and again majority of the equity, is a competitive advantage as it will give the seller and the management team a high degree of comfort that once we've decided on doing the deal that the purchase will continue and will occur and there is a sort of a certainty to close.
Now we believe that our strict adherence to investment fundamentals in our thorough due diligence process have enabled us to provide shareholders returns in both consistent regular monthly distributions as well as these supplemental distributions, which will occur now from time to time. We do continue to build our pipeline and we're actively reviewing and conducting due diligence on a number of new potential investments. However, we're still operating in a buyout environment where the competition for new investments is great, which is leading to purchase prices being paid that are quite high, and this increases the difficulty for us to close on many new buyouts. And that generally is as a result of the conservative value approach which we bring to transactions. I will say, though, that we're fairly close now on a new buyout, which hopefully will occur in the fairly near future.
As to how we do think of returns on our equity, our target for that is around 2 to 3x cash-on-cash return. And we've generated those sort of returns in those exits we've made. And on the debt investments, which are primarily first lien loans, typically carry a cash yield that's going to be in the low teens and that, when we balance it with the equity of the investments that we make, produces this sort of blended current cash yield that we believe is important in our modeling to support our stockholder distributions and the expectations for the same. We also generally have what we call success fees, which are generally due upon when we have a change of control, and they are paid in cash. And we do have limited circumstances, perhaps, when a portfolio company may pay sooner, but generally these are generated when we exit a transaction.
Our investment focus continues to be in companies that has consistent EBITDA and operating cash flow and certainly a potential to expand. The areas of interest generally are light specialty manufacturing; specialty consumer-type products and services, not necessarily retail or storefronts; industrial products and services, and a recent investment we made, as an example is a company called JR Hobbs, which is in the HVAC heating, ventilating, air conditioning construction business. Then also we have had some investments in the aerospace area, not much in energy, and we really try to limit our exposure to those categories.
So very briefly to recap our investment activities for the quarter, as I mentioned earlier, we successfully exited our investment in Mitchell Rubber Products. We had a realized -- small realized gain and other income and we had a full repayment of our $13.6 million debt investment. We also partially exited an investment in Aqua Venture which actually went public, and we now hold some public stock. We did sell some, resulting in a return of capital to us of about $2 million. And we invested about $2.1 million in existing portfolio companies.
So as we look forward, we certainly will continue strategically to add accretive investments to grow that income generating, which is the debt piece equity portion of our -- and the equity portion of our assets and position our existing portfolio for the exits that are necessary to maximize distributions to shareholders. And again to be a little bit redundant, we mentioned earlier we increased our annual distribution run rate to $0.77 per common share and paid the first supplemental distribution to common stockholders in June which is in addition to our monthly distributions.
We do anticipate paying semi-annual supplemental distributions as the portfolio continues to mature and we are able to manage exits and the realized capital gains. Now these distributions are generally expected to be made from undistributed net capital gains, but may also include undistributed net investment income from time to time. We, the management and our Board of Directors will evaluate the amount and the timing of these semi-annual supplemental distributions as we continue to execute on our strategy.
And at this point, I will conclude my part of the presentation. I'd like to turn it over to Julia Ryan, our Chief Financial Officer, and she can go in a bit more detail on the income statement and balance sheet. Julia, over to you.