David Hibbert Watson
Analyst · Hilliard Lyons
Sure thing. Good morning, everyone. As Dave discussed, we had a decent amount of activity this quarter, which concludes our largest year of origination in the fund's history. Not surprisingly then, we achieved our best year of operating performance with over $36 million in total investment income and $19.3 million in net investment income.
We were also really pleased with our net realized gain activity of $8.2 million, which has resulted in the fund to offset the majority of our cumulative realized losses since inception, of which $40 million of the prior losses were incurred primarily during the recession in connection with the sale of performing loans to pay off a former lender. That chapter is fully behind us now, and we are pleased with the position of the fund and our growth prospects.
So regarding our balance sheet position. At the end of the March quarter, we had $331 million in assets, consisting of $314 million in investments at fair value, $5 million in cash and cash equivalents and $12 million in other assets. At our cost basis, 73% of our portfolio assets consisted of debt investments of approximately $279 million, and 27%, or $105 million, consisted of equity securities which we hope to produce capital gains.
For the first time since June in 2009, we did not purchase U.S. Treasury securities at quarter end to help satisfy our asset diversification requirements. As forecasted, the amount of T-Bills that we have had to purchase has been coming down consistently over the past year due to the increased size of our portfolio in qualifying assets. We would have passed the diversification requirements the last 3 quarters without them. And unless some unforeseen event occurs, we do not expect to have to purchase them in the future.
As for our liability, we had $110 million, consisting of $40 million in term preferred stock, $62 million in borrowings outstanding on our $105 million credit facility, $5 million in secured borrowings and $3 million in other liabilities. So in all, as of March 31, 2014, we had $221 million in net assets or $8.34 per share. Today, our balance sheet is largely the same as it was at year end. We have investments at fair value of $315 million, cash of $3.4 million, $62 million in borrowings on our line of credit and $5 million in secured borrowings. So in other words, we have over $45 million in available capital to deploy the new investments prior to any potential increases of our borrowing capacity.
Moving over to the income statement. For the March quarter end, total investment income was $8.8 million versus $8.7 million in the prior quarter. Total expenses, including credits, were $4.2 million versus $4.3 million in the prior quarter, leaving net investment income which is before appreciation and appreciation gains or losses of $4.6 million versus $4.4 million for the prior quarter, an increase of 5.5%. The increase in our investment income was due to an increase of $0.4 million in interest income, which is from holding a larger portfolio, partially offset by a $0.3 million decrease in other income, which is due to pure success and prepayment fees that were received this quarter compared to the prior quarter.
Over the last 2 quarters, other income has accounted for 9.4% and 12.7%, respectively, of our total investment income. And as I'd like to mention on previous calls, during the past 4 fiscal years, other income has averaged over 20% of our total investment income and 15% during the latest fiscal year. We expect other income, which is primary composed of success and prepayment fees, as well as dividend income, to remain meaningful but volatile from quarter to quarter.
Our net expenses decreased quarter-over-quarter, primarily due to a $0.5 million decrease in other expenses, partially offset by an increase in interest expense from increased borrowings for our new deals. The other expenses were down due to lower debt deal expenses in the current quarter and the excise tax in the prior quarter.
In total, our net investment income, which was $0.18 per common share, increased 5.9% over the prior quarter of $0.17 per common share. For the fiscal year end, total investment income was $36.3 million versus $30.5 million in the prior year. Total expenses, including credits, were $17 million versus $14 million in the prior year, leaving net investment income of $19.3 million or $0.73 per share versus $16.5 million or $0.68 per share for the prior year, an increase of 17%. This increase was driven by an increase of $5.7 million in interest income from holding a larger portfolio, partially offset by related costs that are incurred from holding a larger portfolio, such as borrowings and management costs and, specifically, the base management and incentive fee.
Of note, other income was significant but consistent from year to year at $5.8 million or 17.3% of all investment income on average over the past 2 years.
Regarding our debt investments, our debt portfolio on a weighted average basis has grown from $198 million last year to $241 million this year with an average of $256 million in the fourth quarter. Our weighted average yield on interest-bearing debt investments was 12.6%, down slightly from the last quarter of 12.7%. The yield had a slight increase year-over-year to 12.6% from 12.5% last year. Keep in mind, we often have success fees as the component of our debt instruments, but they are excluded from our reported yields. Success fees are contractually due upon the sale of a portfolio company, although the portfolio company can pay it earlier.
As of March 31, 2014, approximately 81% of our interest-bearing debt has associated success fees with an average contractual rate of 3% per annum. The success fees owed to us are approximately $17.2 million, which is about $0.65 per share. We generally do not accrue these success fees on our balance sheet. For comparison purposes, if we had accrued these success fees as we would pick, our weighted average yield on interest-bearing assets would approximate 15.6% during the March quarter. There is no guarantee that we will be able to collect all the success fees or have any control over their timing.
Overall, we believe this is positive portfolio growth, and debt investment alone 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 and 20% alone during this past fiscal year.
Let's turn to realized and unrealized changes in our assets. Realized gains and losses come from actual sales or disposals of investments. Unrealized appreciation and depreciation come from our requirement to mark our investments to fair value on our balance sheet. The change in fair value from one period to the next is recognized in our income statement. Unrealized appreciation and depreciation is a noncash event.
With our $24.8 million realized gain from the sale of Venyu in August 2013, we took the opportunity, during the last 6 months of fiscal year ended March 31, 2014, to strategically sell 2 of our portfolio companies, ASH and Packerland, which resulted in realized losses of $11.4 million and $1.8 million, respectively. We also realized a capital loss of $3.4 million in Noble in the March quarter. While these actions generated a realized loss, they were accretive to our net asset value in aggregate by $5.7 million, reduced our distribution requirements related to our realized gains and reduced our nonaccruals outstanding. The result of all this activity was a net realized gain of $8.2 million for the fiscal year and a cumulative net realized loss position since inception of the fund of just $0.2 million.
As for our unrealized activity, the net unrealized appreciation over our entire portfolio for the quarter ended March 31 was approximately $0.2 million. This included the reversal of $3.4 million in unrealized depreciation related to Noble write-off. So if you were to exclude reversals, we have $3.2 million in net unrealized depreciation for the 3 months ended March 31, 2014. This unrealized depreciation was primarily due to decreased equity valuations in several of our portfolio companies. This results from a quarter-over-quarter decrease in certain of the portfolio companies' earnings used in our methodology to estimate the fair value of the equity of our investment. We are always mindful of the amount of unrealized depreciation on our portfolio quarter-over-quarter. As with our other income, we experienced a lot of volatility in our valuations as market comparable multiples are difficult to obtain from lower middle-market private companies.
To underscore this point, over the last 5 quarters, excluding reversals, we have seen our unrealized appreciation and depreciation fluctuate significantly from 0 to $10.4 million of appreciation to $11.4 million of depreciation to $1.7 million of appreciation to $15.5 million of depreciation and to $3.2 million of depreciation this past quarter. So given our long-term view related to our investments, we have been pleased with the realized values, of which we have exited our investments and are generally less concerned about the inherent quarter-to-quarter fluctuations in our valuations.
For the March quarter end, our entire remaining portfolio was fair valued at 82% of cost, which is up from 80.7% of cost last quarter but down from 87.8% of cost at March 2013.
So now, let's turn to our net decrease increase and net assets from operation. This term is a combination of the net investment income, unrealized net appreciation or depreciation and realized gains and losses. The March 2014 quarter end, this number was an increase of $0.9 million or $0.03 per share versus a decrease of $10.7 million or $0.40 per share in the December quarter. The quarter-over-quarter change is primarily due to the aforementioned realized activity on unrealized amounts of the 2 quarters.
For the March 2014 year end, this number was a decrease of $1.3 million or $0.05 per share versus an increase of $17.3 million or $0.71 per share in the prior year. Similar to the quarter-over-quarter changes, the year-over-year change is primarily due to the aforementioned realized activity on unrealized amounts over the 2 years.
All of our portfolio companies are current in payments, except for one which continues to remain on nonaccrual, which represents durable sense of the fair value and 4.2% of the cost basis of our total debt investments as of March 31, 2014.
Regarding interest rate risk. Approximately 83% of our loans have variable rates, but they all have a minimum or floor. So we have been protected in the low interest rate environment that we have experienced over the last several years. These floors have minimized the potential negative impact to our interest income for distribution. As of March 31, the weighted average floor on our variable rate loans is 2.6%, with a margin of 10.1%, resulting in an all-in rate of 12.7%. The remaining 17% of our loans are fixed with a weighted average rate of 11.8%.
If you had a chance to review the 10-K that we filed last night, you may have noticed that a number of our investments were reclassed from control to either affiliates or noncontrol, nonaffiliate. Part of this reclass, we have revised prior period financials to reflect the reclass for comparability purposes. The general change in the definition of classifications from prior reported periods to the year ended March 31, 2014, relates to the use of voting securities as a primary determinant of classification compared to the use of both voting and nonvoting equity securities in prior periods. There was no impact to our bottom line as a result of this reclass.
Also, over the last 4 fiscal years, our net investment income per share of $2.76 has outpaced the distributions we have made to our common shareholders by $0.36 per share or 30%. It 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. RICs generally have to distribute at least 90% of their taxable ordinary income and capital gains. 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 the March 31, 2014, was $3.9 million or $0.15 per share. Given our desire to be tax efficient over the last 6 months, 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 of this momentum and increasing shareholder value. That concludes my remarks, and I will now turn the call back over to Mr. Gladstone.