Release Date: 12-31-2014 American Century NVIT Growth Fund — Class I Investment Strategy from investment’s prospectus The investment seeks long-term capital appreciation. The fund invests primarily in common stocks issued by large-cap companies, utilizing a growth style of investing. It may invest in securities of foreign companies to varying degrees depending on the strength of analytical indicators and if such company otherwise fits within the fund's investment strategy. The fund's managers consider selling a security when it reaches a target price, its issuer's business quality or fundamentals appear to the subadviser to be deteriorating, or when other opportunities appear more attractive. Past name: NVIT Growth 1. Category Description: Large Growth Large-growth funds invest primarily in big companies that are projected to grow faster than other large-cap stocks. Most of these funds focus on companies in rapidly expanding industries. Operations Fund Inception Date 04-15-92 Initial Share Class Inception Date 04-15-92 Advisor Nationwide Fund Advisors Subadvisor American Century Investment Management Fees and Expenses as of 04-30-14 Gross Prospectus Expense Ratio Net Prospectus Expense Ratio Waiver Data — Type — 0.87% 0.87% Exp.Date — Portfolio Manager(s) Gregory J. Woodhams, CFA. M.A., University of Wisconsin. B.S., Rice University. Since 2010. E.A. P. LeGard, CFA. B.A., DePauw University. Since 2010. % — Portfolio Analysis as of 11-30-14 Composition as of 11-30-14 U.S. Stocks Non-U.S. Stocks Bonds Cash Other % Assets 95.37 1.03 0.00 0.82 2.78 Morningstar Style BoxTM as of 11-30-14 Top 20 Holdings as of 11-30-14 Apple Inc Visa Inc Class A Comcast Corp Class A PepsiCo Inc Boeing Co % Assets 5.19 4.08 3.22 2.86 2.56 Statistics as of 11-30-14 P/E Ratio P/B Ratio P/C Ratio GeoAvgCap($mil) Facebook Inc Class A Exxon Mobil Corporation Union Pacific Corp Lockheed Martin Corp Walt Disney Co 2.31 2.24 2.18 2.15 1.91 CVS Health Corp Gilead Sciences Inc Qualcomm Inc 3M Co Expedia Inc 1.87 1.84 1.84 1.67 1.64 SBA Communications Corp Wells Fargo & Co Alexion Pharmaceuticals Inc Caterpillar Inc Google Inc Class A 1.62 1.57 1.56 1.56 1.55 87 — 80.68 194.11 Total Number of Stock Holdings Total Number of Bond Holdings Annual Turnover Ratio % Total Fund Assets ($mil) Volatility Analysis Investment Low  Moderate % Mkt Cap 46.82 35.21 17.45 0.53 0.00 Giant Large Medium Small Micro Stk Port Avg 20.31 3.16 11.26 55,184.13 Risk Measures as of 12-31-14 3 Yr Std Dev 3 Yr Sharpe Ratio 3 Yr Alpha 3 Yr Beta 3 Yr R-squared Morningstar Sectors as of 11-30-14 Cyclical Basic Materials Consumer Cyclical Financial Services Real Estate Port Avg 10.24 1.68 -3.05 1.06 89.08 S&P 500 17.22 2.49 7.80 72,092.72 Category 20.30 4.06 10.35 71,799.63 S&P 500 9.10 2.09 — — — Category 10.92 1.70 -2.22 1.08 82.10 %Fund S&P 500 % 26.47 30.95 2.07 3.03 15.03 10.58 9.36 15.24 0.01 2.10 Sensitive Communication Services Energy Industrials Technology 45.91 5.04 4.37 15.60 20.90 41.36 3.86 8.44 11.18 17.88 Defensive Consumer Defensive Healthcare Utilities 27.62 8.72 18.90 0.00 27.71 9.76 14.71 3.24 Notes High  Category In the past, this investment has shown a relatively moderate range of price fluctuations relative to other investments. This investment may experience larger or smaller price declines or price increases depending on market conditions. Some of this risk may be offset by owning other investments with different portfolio makeups or investment strategies. This material is authorized for client use only when preceded or accompanied by a Disclosure Statement, a product prospectus, a fund prospectus and/or informational brochure containing more complete information. These can be obtained from your investment professional and should be read carefully before investing or sending money. NOT A DEPOSIT — NOT FDIC INSURED — NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY — NOT GUARANTEED BY THE INSTITUTION — MAY GO DOWN IN VALUE © 2014 Morningstar, Inc. All rights reserved. The information contained herein: (1) is proprietary to Morningstar and/or its content providers; (2) may not be copied or distributed; and (3) is not warranted to be accurate, complete or timely. Neither Morningstar nor its content providers are responsible for any damages or losses arising from any use of this information. Past performance is no guarantee of future results.