Liability driven investing (LDI) collective investment trust series

Liability driven investing (LDI) collective investment trust series December 2015 What they are and how they can be used Introduction Many defined benefit (DB) pension plan sponsors have already considered liability driven investing (LDI) for their pension plans and many have an LDI glidepath or general de-risking strategy in place. These often use pre-planned asset allocation changes which move investments from return-seeking assets to long-dated credit as funding status improves often using fairly conventional asset benchmarks. These so-called trigger approaches (which can be mechanically or judgmentally driven) offer concrete steps toward reducing surplus volatility. We have two observations, however, that might improve their efficiency: 1) A focus on risk factors both those inherent in the liabilities and those baked into assets can enable a more balanced blend of exposures to be targeted. The recognition that risks rather than assets matter can help control unwanted risks while still targeting intentional (i.e. rewarded) exposures; and 2) As glidepaths evolve, the quality of the liability hedge matters more and more. This can generally be improved by using custom liability hedging portfolios that are built explicitly around each pension plan s liability profile. The need is to have a straightforward and cost effective way to do this so that the added time, cost and complexity does not negate the benefits of improved precision. In this paper, we introduce our LDI collective investment trust (CIT) series as tools that can help plan sponsors achieve their goals. They enable plan sponsors to fine tune their liability matching portfolios by delivering effective exposure to the key risk factors important to liabilities. Moreover, these improvements to existing LDI programs can be accomplished in a simple and straightforward manner. We conclude with an illustration of how these tools can be applied in three generic scenarios. What makes a good LDI portfolio? The art and science of an LDI program is to manage the tradeoff between return generation and surplus risk management. The key to success is to recognize two primary attributes that define a good LDI portfolio. It should be a good liability matching portfolio in that it should be capable of tracking the liability to the desired degree. In this way, asset-liability correlation can be increased as funded status comes closer to goal. It should be a good asset portfolio, i.e. it will have the hallmarks of an institutional-quality portfolio that can deliver on the desire to meet and/or outperform the liability return over time. This implies diversified exposure to a chosen set of risk exposures coupled with alpha generating active management. While our LDI CITs are mainly aimed at the liability-hedging portion of a portfolio, they assist in the delivery of the above needs through their thoughtful design and effective portfolio management. Traditional asset portfolios fail to meaningfully hedge liability risks U.S. pension liabilities are most often valued using corporate credit spot curves, whose primary factor exposures can be decomposed into credit spread and Treasury rate duration risks. Figure 1: Relative credit and interest rate exposure of 60/40 portfolio Credit spread sensitivity of assets/sensitivity of liabilities Credit spread hedge ratio 100% 80% 60% 40% 20% Traditional portfolio hedge ratios (30% rates, 20% credit) 0% 20% 40% 60% Interest rate hedge ratio Liability (accounting) 80% 100% Treasury yield sensitivity of assets/sensitivity of liabilities 1

As we show in Figure 1, a traditional portfolio will fail to offer a complete hedge of these liability risk factors for three main reasons: 1) Most plans are underfunded. The degree of underfunding makes it difficult to match asset-liability factor risks on a dollar-weighted basis. 2) Not all assets are invested in bonds. In the quest for higher returns, most pension plans have significant allocations to equities and other assets, meaning less than full allocations to bonds. 3) The duration of liabilities is high. It is not easy to use physical bonds to create diversified portfolios that are meaningfully longer duration than the liabilities to offset for 1) and 2), above. For those plan sponsors who wish to address this problem and separate their liability-hedging decision from their return-generation decision, it follows that some new tools might be required. This is where capital efficiency comes to the fore enabling exposures to liability matching and return-generation to be achieved simultaneously and to varying degrees. For larger plans this can be done through separate accounts, but for medium to smaller sized plans, say those below $500M, the implementation can be difficult and costly. To meet this challenge, Wells Fargo has designed an LDI CIT series to give these plans the convenience and ease of a collective fund structure. Furthermore, traditional benchmarks offer inflexible and untargeted packages of risk exposures. The benchmarks that are widely used came about via slices of the universe of bonds in issuance that were not specifically designed or tailored for pension plan LDI needs. This means it is difficult to precisely dial-in targeted exposures to credit spread and interest rate duration and term structure, and there can be higher than necessary transaction costs baked into the benchmarks due to their mechanical rebalancing rules. As a package, our LDI CIT range addresses these various challenges: They are low cost vehicles that allow precise targeting of the relevant risk factors without sacrificing the characteristics that define a good asset portfolio. By blending the CITs together, they can be custom tailored around any given plan sponsor s liabilities. They offer liability-oriented benchmark features, such as fixed maturity date bands to help offset transaction costs over time. They provide capital efficiency. They can be accessed via different operating models, with a greater or lesser degree of service provided by Wells Fargo. In summary, our LDI CITs have been specifically designed for next generation LDI management. Managing to a changing need along the journey to full funding and derisking As discussed above, a good liability matching portfolio will allow movement toward higher asset-liability correlation over time. In the figure below, this strategic path is shown generically as the blue arrow. First generation glidepaths and many de-risking strategies follow this path, but it is not clear that this is preferred by all plans in all market environments. One advantage of having a more complete tool kit is the ability to custom-tailor a path towards the ultimate destination by accommodating specific views on relative exposure to credit risk and Treasury rate risk. Figure 2 Credit spread hedge ratio Interest rate hedge ratio In our simple conceptual illustration, the red arrow favors a higher initial relative exposure to credit spread duration. A plan that pursues this pathway may deem that long dated credit spreads are relatively attractive at today s levels and that additional Treasury exposure is relatively costly. 1 Intertemporally, the plan can choose to boost its interest rate hedge ratio as market conditions evolve. Conversely, the green arrow favors higher initial relative exposure to Treasury rate duration. A plan sponsor that has significant existing allocation to credit sensitive assets, particularly equities, or which has high business sensitivity to the economic cycle may prefer the downside protection that additional Treasury exposure can provide. The key to implementing any desired pathway is to utilize investment vehicles that provide tailored asset factor exposures in a capital efficient manner. Below, we highlight the building blocks that can be used to accommodate any view. The Wells Fargo Bank LDI CIT series A combination of funds can be optimized to match overall plan preferences and accommodate existing asset portfolio exposures. The general features of each fund listed in Figure 3 are described below. Core exposures can form the nucleus of the LDI asset portfolio. They offer tilts toward credit exposure, interest rate exposure or a blend of exposures using plain vanilla instruments. Funds are actively managed to seek relative value opportunities in core fixed income markets. Credit duration. Actively-managed long corporate funds offer targeted coverage along the credit spread spectrum while seeking to maximize issuer diversification. Both credit duration funds age to track the maturing liability as time passes, reducing the need to rebalance in markets characterized by high turnover costs. This feature, combined with the collective fund structure, can allow a cost effective way to achieve a chosen credit spread hedge ratio. 2

Figure 3 LDI collective investment funds Objective Fund name Fund description Core exposures Investment Grade Credit CIT (LDSI) Actively manages broad maturity investment grade credit bonds Long Government Credit CIT (LDSII) Long Duration CIT (LDSIII) Actively managed long dated blend of U.S. Treasury and Investment grade credit bonds Actively managed long dated U.S. Treasury strips and Investment grade credit Credit duration ORATE 30-40 CIT* Actively managed portfolio of investment grade corporate bonds with maturity dates between 2030 and 2040 ORATE CIT* Actively managed portfolio of investment grade corporate bonds with maturity dates between 2040 and 2050 Treasury duration DEF20 (Duration Extension Fund) CIT* Passively managed portfolio of zero coupon interest rate swaps with maturity terms between 10 and 20 years, with 45 years duration DEF30 (Duration Extension Fund) CIT* Passively managed portfolio of zero coupon interest rate swaps with maturity terms between 20 and 30 years, with 45 years duration Core exposure extension Liability Plus Equity CIT* Blend of 100% S&P 500 futures, 50% long dated investment grade credit, actively managed, 50% Long dated U.S. Treasury futures and 50% Cash *Not funded Treasury duration. Extended rate duration funds incorporate synthetic instruments to act as a rate overlay that is conveniently housed in a collective fund structure. The two funds allow key rate duration matching by focusing on distinct term segments of the curve. The funds are passively managed in recognition of relative efficiency in Treasury markets. Core exposure extention. The LPE fund is designed to increase overall exposure to credit and interest rate duration without sacrificing equity market participation. The use of derivative instruments allows for more efficient use of capital in creating an asset allocation that has less surplus risk when compared to a more traditional, physical-only investment approach. Used together, these funds can effectively expand the opportunity set for an LDI program. In Figure 4, the triangle illustrates the range of joint factor exposures that can be achieved using various combinations of our LDI CITs. Figure 4 Credit Spread duration (spread adjusted) 35 30 25 20 15 10 5 As of 9/30/2015 30-40 Pension liabilities @AA discount rate LDSI LDSII LPE LDSIII DEF 0 0 10 20 30 40 50 Treasury interest rate duration (spot) Illustrative examples With this concept in mind, we turn our attention to how the funds may be deployed to achieve desired outcomes in real world situations. To do so, we set up some baseline assumptions that will underpin each of the three scenarios. Base assumptions Our example pension plan has $250M in total assets against a $300M plan liability, implying a funded status of approximately 83%. Total assets, $100M (40%) is currently allocated to fixed income. This fixed income allocation will be used to target credit spread and interest rate hedge ratios for a $100M slice of the total plan liability of $300M. Example 1 Full hedge In the first example, the plan seeks a full hedge of the slice, implying equal emphasis in matching interest rate and credit spread duration. In other words, $100M of fixed income assets will be deployed to hedge $100M of the liability (i.e. 1/3 of the total liability). Optimization would generate the following allocation among the collective funds with the resulting portfolio characteristics (Figure 5). Figure 5 Rate duration 12.0 12.0 33.3% Credit spread duration* 18.0 18.0 33.3% 30-40 DEF20 DEF30 LDS II LDS I 3

The allocation provides a full hedge of liability risk factors with favorable yield and spread characteristics. Moreover, the allocation between the two CITs and between the two DEF CITs allows close fitment to key rates along the credit curve. Example 2 Credit spread hedge emphasis The investor favors a higher credit spread hedge ratio based on relative value assessment of current credit spread and Treasury rate levels. Optimization generates focused exposures to the credit sensitive LDSI and CITs, producing the associated portfolio characteristics. Figure 7 Rate duration 12.0 32.2 100% Credit spread duration* 18.0 8.1 15% DEF20 DEF30 Figure 6 Rate duration 12.0 10.8 30% Credit spread duration* 18.0 20.5 38% 30-40 LDSI Note that the capital efficiency of the collective funds allows a $100M of assets to hedge $114M of liability credit spread risk and $90M of Treasury rate risk. Moreover, the credit emphasis allows favorable yield and spread characteristics. Other examples that could be targeted include a lower credit spread hedge ratio if non-fixed income assets have significant credit exposure or if plans have equity heavy asset allocations. In addition, the end mix of collective funds could be designed to account for existing assets held elsewhere. Summary The above analysis demonstrates that relatively low cost tools are available for DB pension plans to target desired exposures to specific liability risk factors. Wells Fargo has the capabilities and expertise to deliver a customized solution to accommodate various pension plan investment models. This includes state-of-the-art reporting to the plan and its external partners as well as full service LDI outsourcing capabilities. Example 3 Interest rate hedge emphasis The investor favors a significant interest rate hedge due to interest rate sensitivity of the sponsor or a benign view of interest rate movements in the near to medium term. It is possible to achieve a full hedge of total liability interest rate risk with only $100M of capital. The leverage inherent in the DEF CITs generates significantly extended rate duration, allowing a full rate overlay implementation. 4

Andy Hunt, FIA, CFA Head of LDI and Global Credit Andy Hunt serves as the head of liability-driven investing and global credit at Wells Capital Management. In this capacity, he focuses on building out the firm s LDI solutions, creating a cohesive global credit platform, and overseeing the portfolio management teams that have strong credit-based strategies. Andy joined WellsCap in 2014 from Blackrock where he served as the head of North American solutions for corporate pensions plans, including U.S. liability-driven investment capabilities, since 2005. Earlier, he was a partner at Watson Wyatt (now Towers Watson) in the United Kingdom since 1992 in various roles as an actuary, senior investment consultant, and head of investment consulting for defined contribution. Andy earned his degree in mathematics from Cambridge University. He has earned the right to use the CFA as well as FIA designations. Robert McHenry Portfolio Specialist, Liability Driven Investment Robert McHenry is a portfolio specialist for the Liability Driven Investment team at Wells Capital Management. Prior to joining WellsCap in 2014, Robert was a LDI product manager at Columbia Management in Boston, and a fixed income product manager at Insight Investment in London, United Kingdom. In these roles he was responsible for new business development through providing clients with investment solutions. Robert began his investment career in 1976. He has extensive experience in global fixed income portfolio management, and served as head of global fixed income at Hartford Investment Management and a senior investment director at Lombard Odier in London, U.K. Matt Alexander, CFA, CAIA Product Manager, Institutional Investment Product Management Matt Alexander is a product manager for the Institutional Investment Product Management team at Wells Capital Management. His responsibilities include product development, providing competitor and benchmark analysis and generating monthly and quarterly performance analytics. Prior to joining WellsCap, Matt was the director of marketing research at Heartland Advisors, Inc. since 2010. He joined Heartland Advisors from Stark Investments, where he served as director of marketing operations since 2006. Earlier, he served as a vice president at ABN AMRO Asset Management since 2002. Matt earned a bachelor s degree in accounting from Miami University in Oxford, Ohio, and an MBA from the University of Chicago Booth School of Business. He has earned the right to use the CFA and the CAIA designations. He is a member of the CFA Institute, the CFA Society of Milwaukee, Inc., and the CAIA Association. 1 We have recently published an insight paper discussing why institutional supply/demand characteristics that govern segments of the credit yield curve supports this view. CFA and Chartered Financial Analyst are trademarks owned by CFA Institute. Collective investment funds are subject to primary regulation of the Office of the Comptroller of the Currency. They are not mutual funds and are not subject to the same registration requirements and restrictions as mutual funds. These funds are NOT FDIC insured, NOT an obligation or a deposit of Wells Fargo Bank, NOT guaranteed by the Bank, and involve investment risk, including possible loss of principal. Recordkeeping, trustee, and/or custody services are provided by Wells Fargo Institutional Retirement and Trust, a business unit of Wells Fargo Bank, N.A. The information contained herein and any information provided by representatives of Wells Fargo Bank is for educational purposes only and does not constitute investment, financial, tax, or legal advice. Further, this information is general in nature and is not intended to address the particular needs of any specific client. Wells Fargo Asset Management (WFAM) is a trade name used by the asset management businesses of Wells Fargo & Company. WFAM includes Affiliated Managers (Galliard Capital Management, Inc.; Golden Capital Management, LLC; Nelson Capital Management; Peregrine Capital Management; and The Rock Creek Group); Wells Capital Management, Inc. (Metropolitan West Capital Management, LLC; First International Advisors, LLC; and ECM Asset Management Ltd.); Wells Fargo Funds Distributor, LLC; Wells Fargo Asset Management Luxembourg S.A.; and Wells Fargo Funds Management, LLC. Wells Capital Management (WellsCap) is a registered investment adviser and a wholly owned subsidiary of Wells Fargo Bank, N.A. WellsCap provides investment management services for a variety of institutions. The views expressed are those of the author at the time of writing and are subject to change. This material has been distributed for educational/informational purposes only, and should not be considered as investment advice or a recommendation for any particular security, strategy or investment product. The material is based upon information we consider reliable, but its accuracy and completeness cannot be guaranteed. Past performance is not a guarantee of future returns. As with any investment vehicle, there is a potential for profit as well as the possibility of loss. For additional information on Wells Capital Management and its advisory services, please view our web site at www.wellscap.com, or refer to our Form ADV Part II, which is available upon request by calling 415.396.8000. NOT FDIC INSURED NOT BANK GUARANTEED MAY LOSE VALUE 5