David Hibbert Watson
Analyst · Ladenburg
Sure thing. Good morning, everyone. As David said, we had a lot of activity this quarter, including 3 new deals, 2 substantial repayments and 2 sales. We saw the prior quarter where we a had big win with the sale of Venyu. Exits such as Venyu generates substantial other income for us and results in a lot of earnings volatility. And in fact, since early 2010, we have generated almost $23 million in other income from our portfolio, which has accounted for about 21% of our total income over the same period. However, you know we are consistently generating this type of income over the long term. It is very lumpy, and we could go long periods without generating any of this type of income. So in order to better understand our straightline performance over the last 2 quarters, if one were to exclude the impacts of the Venyu sale, other income events and [indiscernible] factors from our financials, our net investment income quarter-to-quarter would be consistent.
So with those overriding thoughts in mind, I will get into the details of our financials. Regarding our balance sheet, at the end of the December quarter, we had $318 million in assets consisting of $291 million in investments at fair value, $15 million in cash and cash equivalents, and $12 million in other assets. On a cost basis, 73%, or $252 million, of our portfolio assets consisted of debt investments, and 27%, or $98 million, consisted of equity securities, which we will hope will produce capital gains over time. Included in the cash and cash equivalents is $10 million of U.S. Treasury securities purchased through the use of borrowed funds at quarter end to satisfy our asset diversification requirements. The amount of the T-bills that we've had to purchase has generally been coming down consistently over the past year. I am happy to report that we have passed, as we would have to, the diversification requirement over the past 2 quarters without purchasing any T-bills. However, we will continue to utilize the purchase of T-bills, so we are 100% confident with our margins of error on the test.
As for our liabilities, we had $93 million, consisting of $40 million in term preferred stock, $36 million in borrowings outstanding on our $105 million 3-year credit facility, $5 million of secured borrowings, $9 borrowed with a short-term loan and $3 million in other liabilities. In all, as of December 31, we had $225 million in net assets or $8.49 per share. Today, we have investments at fair value of $291 million, cash of $3 million, $34 million in borrowings on our $105 million credit facility and $5 million in secured borrowings. So in other words, we have over $70 million in available capital to deploy in new investments before any potential increases in our borrowing capacity.
Moving over to the income statement for the December quarter end. Total investment income was $8.7 million versus $11.4 million in the prior quarter. Total expenses, including credits, were $4.3 million versus $5.1 million in the prior quarter, leaving net investment income of $4.4 million versus $6.2 million for the prior quarter, a decrease of 29%. This was primarily due to the $1.9 million of success fees and $1.4 million in dividend income, partially offset by an increase in incentive fees related to the sale of Venyu in the prior quarter. As mentioned earlier, since early 2010, other income has accounted for over 21% of our total income on average. Last quarter, it was 32%. This quarter, it was 13%. And over the 2 quarters, it averaged 24%, which is slightly above our recent historical average. While our base fund earnings, which include the impact of other income and related incentive fees, grew last quarter and remained stable this quarter. We continue to expect volatility in our net investment income for the foreseeable future. So in total, our net investment income, which was $0.17 per common share, decreased 29% over the prior quarter of $0.24 per common share.
We think it's important to take a moment to touch on significant, steady growth that we've had in our portfolio and the income since we restarted our origination efforts in May 2010. The year-over-year net growth rate since the time -- since that time in the size of our weighted average interest-bearing assets has been 22.5%. The year-over-year net growth rate over the same period in the amount of cash interest income recorded has been 27%. In addition, our weighted average yield on interest-bearing debt investment has increased to 12.7% in the current quarter, up from 11.3% in late 2010. Keep in mind, we often have success fees as a component of our debt instrument, but they are excluded from our reported yields. Success fees are contractually due upon the sale of a portfolio company, although the portfolio company may pay it earlier. So as of December 31, approximately 79% of our interest-bearing debt has associated success fees with a weighted average contractual rate of 3.1% per annum. The success fees owed to us are approximately $16.2 million, which is about $0.61 per share. We generally do not accrue these success fees on our balance sheet.
So for comparison purposes, if we had accrued these success fees as we would pick, our weighted average yield on interest-bearing assets was approximately 15.8% during the December quarter. Again, there is no guarantee that we'll be able to collect all the success fees or have any control over their timing.
So overall, we believe that the positive portfolio in yield growth and our debt investments on loan has positioned this company well for the future and, in part, has enabled us to increase our dividend rate on our common stock by 50% since late 2010.
Let's turn to realized and unrealized changes in our assets. Realized gains and losses come from actual sales or disposals of investments. Unrealized appreciations and depreciations come from our requirement to mark our investments to the fair value on our balance sheet, with the change in fair value from one period to the next recognized in our income statement. Unrealized appreciation and depreciation is a noncash event. So as we mentioned earlier, we generated approximately $25 million in realized gains last quarter with the sale of Venyu, and Venyu, together with 3 other earlier liquidity events, has generated $55 million in realized gains since early 2010. And so we've overcome our cumulative realized losses since inception that were primarily incurred during the recession and in connection with the sale of performing syndicated loans at a realized loss to pay off the former lender. We are happy to say we're in a realized gain position today.
We took this opportunity during the 3 months ended December 31 to strategically sell 2 of our distressed portfolio companies, ASH and Packerland, to existing members of their management teams and other existing owners. This resulted in realized losses of $11.4 million and $1.7 million, respectively. These sales, while at a realized loss, were accretive to our net asset value in aggregate by about $5.7 million and reduced our nonaccruals outstanding.
As for our unrealized activity, the net unrealized depreciation over our portfolio for the quarter ended December 31 was approximately $2.3 million. This included the reversal of $13.2 million in aggregate unrealized depreciation, primarily related to the ASH and Packerland sales. Excluding reversals, we had $15.5 million in net unrealized depreciation for the 3 months ended December 31. This unrealized depreciation was primarily due to decreased equity valuation in several of our portfolio companies. This results on the combination of a quarter-over-quarter decrease in these portfolio companies' earnings and decreases in certain comparable multiples used in our methodology to estimate the fair value of the equity of our investments. We are always mindful of the amount of unrealized depreciation on our portfolio quarter-over-quarter. But as with our other income, we experienced a lot of volatility in our valuations as market comparable multiples are difficult to obtain for lower middle-market private companies, which is what we invest in. So to underscore that point, over the last 5 quarters, excluding reversals, we have seen our unrealized appreciation and depreciation fluctuate to the midpoint, going from zero to $10.4 million in appreciation to $11.4 million of depreciation to $1.7 million of appreciation, and finally, to $15.5 million of depreciation in the past quarter.
But given our long-term view related to our investments, we have been pleased with the realized value [indiscernible] on investments and are generally less concerned about the inherent quarter-to-quarter fluctuations in our valuations. But for the December quarter end, our entire remaining portfolio was fair valued at 80.7% of cost, down from 81.1% of cost last quarter.
Now lets turn to net decrease/increase in net assets from operations. The term is a combination of net investment income, unrealized net appreciation or depreciation, and unrealized gains and losses. For the December 2013 quarter end, this number was a decrease of $10.7 million or $0.40 per share versus an increase of $14.9 million or $0.57 per share in the September quarter. The quarter-over-quarter change is primarily due to the aforementioned realized activity and unrealized amounts over the past 2 quarters.
All of our portfolio companies are current in payments except for one, which continues to remain on nonaccrual and now represents [ph] 0% of the fair value and 4.6% of the cost basis of our total debt investment portfolio as of December 31.
Regarding our interest rate risk, approximately 81% of our loans have variable rates, but they all have a minimum or floor in the rate they [ph] charge. So with the low interest rates that we have experienced over the last several years, these floors have minimized the negative impact on our ability to make distributions. As of December 31, the weighted average floor on our variable rate loans is 2.7%, with a margin of 10%, resulting in an all-in rate of 12.7%. The remaining 19% of our loans are fixed, with a weighted average rate of 11.3%.
So over the last 3 fiscal years and the current year to date, our net investment income per share of $2.59 has outpaced the distributions we had made to our common shareholders by $0.37 per share or 14%. This has largely been driven by income generated from our equity investments. Our board continues to maintain a conservative distribution policy to ensure we earn our dividend. As a reminder, RICs generally have to distribute at least 90% of their taxable ordinary income and capital gains. And as in the past, we will continue to utilize Section 855A of the IRS Code, which allows us to carry forward a reasonable portion of our income and gains. The balance as of March 31, 2013, was $3.1 million, and it has since increased with our performance and the Venyu sale during the first 9 months of this fiscal year ending March 31, 2014.
Given our desire to be tax efficient, last quarter, the board increased our monthly sustainable distribution rate by 20% to $0.06 per common share a month and also declared a onetime special distribution of $0.05 per share that was paid in November. We look forward to maintaining all this momentum and increasing shareholder value.
And now I will turn the call back over to Mr. Gladstone.