The U.S. and global capital markets have from time to time experienced periods of disruption characterized by the freezing of available credit, a lack of liquidity in the debt capital markets, significant losses in the principal value of investments, the re-pricing of credit risk in the broadly syndicated credit market, the failure of major financial institutions and general volatility in the financial markets. During these periods of disruption, general economic conditions deteriorated with material and adverse consequences for the broader financial and credit markets, and the availability of debt and equity capital for the market as a whole, and financial services firms in particular, was reduced significantly. These conditions may reoccur for a prolonged period of time or materially worsen in the future.
The United Kingdom (the "UK") formally left the European Union (the "EU") on January 31, 2020 (commonly known as "Brexit"), followed by an implementation period, during which EU law continued to apply in the UK and the UK maintained its EU single market access rights and EU customs union membership. The implementation period expired on December 31, 2020. Consequently, the UK has become a third country vis-à-vis the EU, without access to the single market or membership of the EU customs union. During the implementation period, on December 30, 2020, the UK and the EU signed a trade and cooperation agreement (the "TCA") to govern their ongoing relationship. The TCA was officially ratified by the UK Parliament on December 30, 2020, and was ratified by the EU Parliament and Council on April 27, 2021. It is anticipated that further details of the relationship between the UK and the EU will continue to be negotiated even after formal ratification of the TCA.Over time, UK regulated firms and other UK businesses may be adversely affected by the terms of the TCA (assuming it is formally ratified by the EU), as compared with the position prior to the expiration of the implementation period on December 31, 2020. For example, the TCA introduces new customs checks, as well as new restrictions on the provision of cross-border services and on the free movement of employees. These changes have the potential to materially impair the profitability of a business, and to require it to adapt or even relocate. Although it is probable that any adverse effects flowing from the UK's withdrawal from the EU will principally affect the UK (and those having an economic interest in, or connected to, the UK), given the size and global significance of the UK's economy, the impact of the withdrawal is unpredictable and likely to be an ongoing source of instability, produce significant currency fluctuations, and/or have other adverse effects on international markets, international trade agreements and/or other existing cross-border cooperation arrangements (whether economic, tax, fiscal, legal, regulatory or otherwise). The withdrawal of the UK from the EU could therefore adversely affect us. In addition, although it seems less likely following the expiration of the transition period than at the time of the UK's referendum, the withdrawal of the UK from the EU could have a further destabilizing effect if any other member states were to consider withdrawing from the EU, presenting similar and/or additional potential risks and consequences to our business and financial results.
Market conditions may in the future make it difficult to extend the maturity of or refinance our existing indebtedness and any failure to do so could have a material adverse effect on our business. If we are unable to raise or refinance debt, then our equity investors may not benefit from the potential for increased returns on equity resulting from leverage and we may be limited in our ability to make new commitments or to fund existing commitments to our portfolio companies.
Given the volatility and dislocation that the capital markets have historically experienced, many BDCs have faced, and may in the future face, a challenging environment in which to raise capital. We may in the future have difficulty accessing debt and equity capital on attractive terms, or at all, and a severe disruption or instability in the global financial markets or deteriorations in credit and financing conditions may cause us to reduce the volume of the loans we originate and/or fund, which may adversely affect the value of our portfolio investments or otherwise have a material adverse effect on our business, financial condition, results of operations and cash flows. In addition, significant changes in the capital markets, including instances of extreme volatility and disruption, have had, and may in the future have, a negative effect on the valuations of our investments and on the potential for liquidity events involving our investments. We monitor developments and seek to manage our investments in a manner consistent with achieving our investment objective, but there can be no assurance that we will be successful in doing so, and we may not timely anticipate or manage existing, new or additional risks, contingencies or developments, including regulatory developments in the current or future market environment.
An inability to raise capital, and any required sale of our investments for liquidity purposes, could have a material adverse impact on our business, financial condition or results of operations. The debt capital that will be available to us in the future, if at all, may be at a higher cost and on less favorable terms and conditions than what we currently experience, including being at a higher cost in rising rate environments. If we are unable to raise or refinance debt, then our equity investors may not benefit from the potential for increased returns on equity resulting from leverage and we may be limited in our ability to make new commitments or to fund existing commitments to our portfolio companies. In addition, equity capital may be difficult to raise during periods of adverse or volatile market conditions because, subject to some limited exceptions, as a BDC, we are generally not able to issue additional shares of our common stock at a price less than net asset value without first obtaining approval for such issuance from our stockholders and our independent directors. We generally seek approval from our stockholders so that we have the flexibility to issue up to a specified percentage of our then-outstanding shares of our common stock at a price below net asset value. Pursuant to approval granted at an annual meeting of stockholders held on May 20, 2021, we are permitted to issue and sell shares of our common stock at a price below our then-current net asset value per share in one or more offerings, subject to certain limitations and determinations that must be made by the Board (including, without limitation, that the number of shares issued and sold pursuant to such authority does not exceed 30% of our then-outstanding common stock immediately prior to each such offering). Such stockholder approval expires on May 20, 2022.
Many of the portfolio companies in which we make investments may be susceptible to economic slowdowns or recessions and may be unable to repay the loans we made to them during these periods. Therefore, our non-performing assets may increase and the value of our portfolio may decrease during these periods as we are required to record our investments at their current fair value. Adverse economic conditions also may decrease the value of collateral securing some of our loans and the value of our equity investments. Economic slowdowns or recessions could lead to financial losses in our portfolio and a decrease in revenues, net income and assets. Unfavorable economic conditions also could increase our and our portfolio companies' funding costs, limit our and our portfolio companies' access to the capital markets or result in a decision by lenders not to extend credit to us or our portfolio companies. These events could prevent us from increasing investments and harm our operating results.
A portfolio company's failure to satisfy financial or operating covenants imposed by us or other lenders could lead to defaults and, potentially, acceleration of the time when the loans are due and foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize the portfolio company's ability to meet its obligations under the debt that we hold. We may incur additional expenses to the extent necessary to seek recovery upon default or to negotiate new terms with a defaulting portfolio company. In addition, if one of our portfolio companies were to go bankrupt, depending on the facts and circumstances, including the extent to which we will actually provide significant managerial assistance to that portfolio company, a bankruptcy court might subordinate all or a portion of our claim to that of other creditors.