SFDCP Small-Mid Cap Equity Index Fund A Custom Plan Investment Option

SFDCP Small-Mid Cap Equity Index Fund A Custom Plan Investment Option New Fund Fund Fact Sheet Key Facts INVESTMENT ADVISOR: Northern Trust Investments Inc FUND CATEGORY: Small Cap Stock - Blend MANDATE BENCHMARK: Dow Jones U.S. Completion Total Stock Market Index NET ASSETS: $0.00 Million INCEPTION DATE: 03/09/2018 NET EXPENSE RATIO: 0.04% PORTFOLIO MANAGER(S): Team Managed Please be aware that due to the inception date of March 9, 2018, data will not be available for display. These exhibits will be valued with First Quarter 2018 reporting. DESCRIPTION/OBJECTIVE The SFDCP Small-Mid Cap Equity Index Fund (the Fund ) invests exclusively in the Northern Trust Extended Equity Market Index Fund NL Tier 4 (the "Collective Trust or C.I.T. ). The primary objective of the C.I.T. is to approximate the risk and return characteristics of the Dow Jones U.S. Completion Total Stock Market Index. This Index is commonly used to represent the small and mid cap segments of the U.S. equity market. To achieve its objective, the C.I.T. employs a replication technique which generally seeks to hold each index constituent in its proportional index weight. The C.I.T. may make limited use of futures and/or options for the purpose of maintaining equity exposure. This C.I.T. may not participate in securities lending. There is no assurance the objectives will be met. The Key Facts section reflects data pertaining to the Collective Investment Trust Fund except for the Inception Date and Net Assets. The inception date for this Fund is based on a first price date made available to Prudential. The City and County of San Francisco Retirement Board is solely responsible for: (1) the selection of the Fund and its underlying funds (including the selection of the asset allocation percentages for each underlying fund); (2) decisions to allocate plan assets to the Fund; and (3) the selection, monitoring and replacement of the Fund and its underlying funds, and if applicable, the Fund investment advisor(s). Small and mid sized companies may present greater opportunities for capital appreciation, but may also involve greater risks than larger companies. As a result, the value of stocks issued by these companies may fluctuate more than stocks of larger issuers. C.I.T. Top Five Holdings C.I.T. Top Five Sectors Holdings and Sector allocations are ranked as a percentage of net assets and subject to change without notice. C.I.T. Portfolio Allocation C.I.T. Characteristics Mandate C.I.T. Benchmark Weighted Geometric Market Cap. ($Bil) N/A N/A Price/Earnings Ratio (Forward) N/A N/A Price/Book Ratio N/A N/A 3-Year Earnings Growth Rate (%) N/A N/A Number of Holdings-Long N/A N/A Performance(%) As of 12/31/2017 Cumulative Returns Average Annual Total Returns QTD YTD 1 Year 3 Year 5 Year 10 Year Since Inception Fund --- --- --- --- --- --- --- Mandate Benchmark --- --- --- --- --- --- --- Fees Reflected in Performance. All performance results will be net of the total expense ratio for this Fund of 0.04%. Fund Structure. Your retirement plan makes available certain plan investments structured as "Fund of funds" (investments that invest in one or more underlying funds). These investments are neither mutual funds nor separate accounts offered by Prudential Retirement Insurance and Annuity Company ("PRIAC"). Rather, PRIAC acts solely as a record keeper in providing administrative and valuation services in connection with these plan investments. Management of these plan investments is the sole responsibility of your plan sponsor and/or a third party whom the plan sponsor has hired to provide investment management services. Performance Risks. Before investing, investors should carefully consider the investment objectives, risks, charges and expenses of this Fund and other plan investment options. The performance quoted represents past performance. The investment value and return will fluctuate so that an investment, when redeemed, may be worth more or less than original cost. Past performance does not guarantee future results. Current performance may be lower or higher than the performance data quoted. For performance data current to the most recent month end, please call 1-888-SFDCP- 4U (1-888-733-2748) or go to www.sfdcp.org. It is possible to lose money investing in securities. Miscellaneous. Frequent exchanging of investment options may harm long-term investors. Your plan and/or the Fund may have policies to detect and deter potentially abusive exchanges. The policies may require us to modify or terminate investment exchange privileges. Benchmarks are unmanaged and cannot be invested in directly. See User Guide for benchmark definitions and refer to the section entitled "Separate Account or Custom Plan Investment Options" for a description of PRIAC's role related to the type of fund described in this Fact Sheet. For more information, go to www.sfdcp.org or call toll-free 1-888-SFDCP-4U (1-888-733-2748). 2018 Prudential Financial, Inc. and its related entities. Prudential, the Prudential logo, the Rock symbol and Bring Your Challenges are service marks of Prudential Financial, Inc., and its related entities, registered in many jurisdictions worldwide. 0285527 SA-FRA_CUSTOM/4Q17

This material has been prepared by Northern Trust, which is not affiliated with Prudential Retirement. Prudential Retirement serves as recordkeeper for your plan, but does not make any representations as to the accuracy or completeness of the information contained in the fact sheet. This information is provided at the request of The City and County of San Francisco Retirement Board for informational purposes only and should not be considered a recommendation to buy or sell any security. Any performance data quoted represents past performance, and past performance does not guarantee future results. In general, the investment return and principal value of an investment will fluctuate so that an investor's shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance data quoted. For more information, please contact Northern Trust at 877-651-9156. The City and County of San Francisco Retirement Board is creating a new plan level investment, the SFDCP Small-Mid Cap Equity Index Fund, effective March 9, 2018 ( Fund ). This Fund will invest directly in a collective investment trust, NT Collective Extended Market Index Fund- NL Tier 4 ( Underlying Fund ). The City and County of San Francisco Retirement Board is making available to you the Fact Sheet for the Underlying Fund (attached), which will comprise the Fund. The Fact Sheet for the underlying plan level investment will remain available to you until the First Quarter 2018 Fact Sheet becomes available for use.

Northern Trust COLLECTIVE EXTENDED EQUITY MARKET INDEX FUND - DC - NON LENDING - TIER FOUR As Of December 31, 2017 EQUITIES Key Facts Inception Fund Size ($M) Benchmark 09/15/2017 2,117.86 DJ US Completion Index INVESTMENT OBJECTIVE The primary objective of the Northern Trust Extended Equity Market Index Fund is to approximate the risk and return characteristics of the Dow Jones U.S. Completion Total Stock Market Index. This Index is commonly used to represent the small and mid cap segments of the U.S. equity market. Fees and Expenses Total Admin Expenses (%) Investment Management Fee (%) Total Annual Operating Expense (%) Per $1000 Investment ($) 0.0200 0.0200 0.0400 0.4000 Fund Performance Trailing Returns (%) 8.0% 6.0% 4.0% Portfolio Information 2.0% Fund Index 0.0% Number of Equity Securities 3,020 3,266 Weighted Avg. Cap. ($B) 6.6 6.5 Price to Earnings 24.88 24.87 as of 12/31/2017 3 Month Year-to- Date 1-Year 3-Year 5-Year 10-Year Since Inception Price to Book 2.60 2.60 Dividend Yield (%) 1.39 1.36 Fund 4.80 -- -- -- -- -- 7.69 Benchmark 4.85 -- -- -- -- -- 7.71 3-Year EPS (%) 18.23 17.71 Return on Equity (%) 7.88 7.74 Calendar Year Returns (%) All performance periods greater than 1-year are annualized. Top Holdings(% of fund) Fund Index Tesla Inc 0.85 0.85 Las Vegas Sands Corp. 0.52 0.52 ServiceNow, Inc. 0.46 0.46 Liberty Global Plc Class C 0.41 0.41 2017 2016 2015 2014 2013 2012 2011 T-Mobile US, Inc. 0.38 0.38 FleetCor Technologies, Inc. 0.35 0.35 Dell Technologies Inc Class V 0.34 0.34 BioMarin Pharmaceutical Inc. 0.32 0.32 Twitter, Inc. 0.32 0.32 Markel Corporation 0.32 0.33 Fund -- -- -- -- -- -- -- Benchmark -- -- -- -- -- -- -- INVESTOR STRATEGY To achieve its objective, the Fund employs a replication technique which generally seeks to hold each index constituent in its proportional index weight. The Fund may make limited use of futures and/or options for the purpose of maintaining equity exposure. This Fund may not participate in securities lending. INVESTMENT MANAGER Northern Trust is a global multi-asset class investment manager serving clients worldwide. Through the combined resources of the Northern Trust Company, Northern Trust Investments, Inc., Northern Trust Global Investments Limited, and its subsidiaries, a broad range of investment products and services are offered to personal and institutional markets around the globe. Collective Extended Equity Market Index Fund - DC - Non Lending - Tier Four 1 of 4

COLLECTIVE EXTENDED EQUITY MARKET INDEX FUND - DC - NON LENDING - TIER FOUR Sector Breakdown (% of fund) Fund Index Information Technology 18.28 18.26 Financials 16.89 16.89 Consumer Discretionary 14.31 14.24 3-Year Risk Statistics Tracking Error* Beta* -- Tracking error is a measure of the volatility of the differences in the return between a fund and its benchmark. The smaller the tracking error, the more the fund resembles the benchmark regarding risk and return characteristics. -- Beta is a measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole. Industrials 14.05 14.04 Health Care 10.96 11.06 Annualized Standard Deviation -- Standard deviation is a measure of risk. In this case risk is represented by the fund s price movements up or down over time. Real Estate 8.44 8.44 *Measured against the Fund's benchmark Materials 5.50 5.50 Energy 4.40 4.40 Utilities 3.12 3.12 Consumer Staples 3.06 3.06 Telecommunication Services 0.99 0.99 For More Information Please contact Northern Trust at 877-651-9156. Fees and expenses are one of several factors that participants and beneficiaries should consider when making investment decisions. The cumulative effect of fees and expenses can substantially reduce the growth of a retirement account; beneficiaries can visit the Employee Benefit Security Administration s website for an example demonstrating the long term effect of fees and expenses. The information provided in the Investment Profile and this disclosure statement should not be considered a recommendation to purchase or sell a particular security. The fund is a collective investment fund and is privately offered. Prospectuses are not required and prices are not available in local publications. To obtain pricing information, please contact your service representative. Please note that the information provided in the Investment Profile and this disclosure statement may not meet all of the disclosure requirements for an ERISA section 404(c) plan, as described in the Department of Labor regulations under section 404(c). In addition, the information disclosed in the Investment Profile and this disclosure statement may not meet the requirements of Department of Labor Rule 404a-5 of ERISA ( Rule 404a-5 ). Plan Sponsors intending to comply with such regulations will need to provide Plan participants with additional information. The performance information shown represents past performance and is not a guarantee of future results. Current performance may be lower or higher than the information shown. Performance is shown net of investment management and total administrative expenses (see additional disclosure information). Periods greater than one year are annualized except where indicated. Returns reflect the reinvestment of dividends and other earnings and are shown before the deduction of your investment management fees, unless indicated otherwise. Returns would be further reduced by investment management fees. Index performance returns do not reflect any management fees, transaction costs or expenses. It is not possible to invest directly in any index. There are risks involved in investing including possible loss of principal. There is no guarantee that the investment objectives of any fund or strategy will be met. Risk controls and models do not promise any level of performance or guarantee against loss of principal. The information provided herein does not constitute individual investment advice for a Plan participant or investor, is only informational in nature and should not be used by a Plan participant or investor as a primary basis for making an investment decision. NOT FDIC INSURED May lose value/no bank guarantee Collective Extended Equity Market Index Fund - DC - Non Lending - Tier Four 2 of 4

COLLECTIVE EXTENDED EQUITY MARKET INDEX FUND - DC - NON LENDING - TIER FOUR Additional Disclosure Information Total Administrative Expense reflects the maximum level at which (i) the direct expenses as well as external audit fees for the Fund and (ii) the direct expenses and external audit fees of the underlying Funds in which it invests, will be assessed and indirectly impact the Fund. The trustee does not assess or charge any fee in connection with the purchase or redemption of units of the Fund. NTI may at any time modify or discontinue the above-described caps on Total Administrative Expenses. These expenses do not include additional amounts, if any, that may be charged to your account for plan administration. Please contact your Plan administrator or plan recordkeeper for further information regarding the total expense of investing in the Fund. Investment Risks- The following Risks are for Collective Extended Equity Market Index Fund - DC - Non Lending - Tier Four. Capitalization Risk: Country or Region Risk: Derivatives Risk: Equity Securities Risk: Futures Risk: Concentrating assets in stocks of one or more capitalizations (small, mid, or large) may be subject to both the specific risks of those capitalizations as well as increased volatility because stocks of specific capitalizations tend to go through cycles of beating or lagging the market as a whole. Investments in securities from a particular country or region may be subject to the risk of adverse social, political, regulatory, or economic events occurring in that country or region. Investments in derivatives may be subject to the risk that the advisor does not correctly predict the movement of the underlying security, interest rate, market index, or other financial asset, or that the value of the derivative does not correlate perfectly with either the overall market or the underlying asset from which the derivative's value is derived. The value of equity securities, which include common, preferred, and convertible preferred stocks, will fluctuate based on changes in their issuers financial conditions, as well as overall market and economic conditions, and can decline in the event of deteriorating issuer, market, or economic conditions. Investments in futures contracts and options on futures contracts may increase volatility and be subject to additional market, active management, interest, currency, and other risks if the contract cannot be closed when desired. Increase in Expenses Risk: The actual cost of investing may be higher than the expenses listed in the expense table for a variety of reasons, including termination of a voluntary fee waiver or losing portfolio fee breakpoints if average net assets decrease. Index Correlation/Tracking Error Risk: Issuer Risk: Long-Term Outlook and Projections Risk: Loss of Money Risk: Market/Market Volatility Risk: Not FDIC Insured Risk: Options Risk: Pricing Risk: Regulation/Government Intervention Risk: Shareholder Activity Risk: Suitability Risk: Underlying Fund/Fund of Funds Risk: A portfolio that tracks an index is subject to the risk that certain factors may cause the portfolio to track its target index less closely, including if the advisor selects securities that are not fully representative of the index. A stake in any individual security is subject to the risk that the issuer of that security performs poorly, resulting in a decline in the security s value. The investment is intended to be held for a substantial period of time, and investors should tolerate fluctuations in their investment s value. Because the investment s market value may fluctuate up and down, an investor may lose money, including part of the principal, when he or she buys or sells the investment. The market value of the portfolio s securities may fall rapidly or unpredictably because of changing economic, political, or market conditions, which may reduce the value of the portfolio. The investment is not a deposit or obligation of, or guaranteed or endorsed by, any bank and is not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other U.S. governmental agency. Investments in options may be subject to the risk that the advisor does not correctly predict the movement of an option s underlying stock. Some investments may not have a market observed price; therefore, values for these assets may be determined through a subjective valuation methodology. The business of the issuer of an underlying security may be adversely impacted by new regulation or government intervention, impacting the price of the security. Frequent purchases or redemptions by one or multiple investors may harm other shareholders by interfering with the efficient management of the portfolio, increasing brokerage and administrative costs and potentially diluting the value of shares. Investors are expected to select investments whose investment strategies are consistent with their financial goals and risk tolerance. A portfolio s risks are closely associated with the risks of the securities and other investments held by the underlying or subsidiary funds, and the ability of the portfolio to meet its investment objective likewise depends on the ability of the underlying funds to meet their objectives. Collective Extended Equity Market Index Fund - DC - Non Lending - Tier Four 3 of 4

COLLECTIVE EXTENDED EQUITY MARKET INDEX FUND - DC - NON LENDING - TIER FOUR Comparative Benchmark Definitions DJ US Completion Total Stock Market Index is a subset of the Dow Jones US Total Stock Market Index that excludes components of the S&P500. Collective Extended Equity Market Index Fund - DC - Non Lending - Tier Four 4 of 4