N-MFP2 0000899148 XXXXXXXX 2017-05-31 0000899148 S000003657 1 N N 033-59692 Security Investors, LLC 801-08008 Ernst & Young LLP McLean VA None Rydex Fund Services, LLC 0000913181 084-05475 N N N Exempt Government N 31 73 144992869.28 141312674.30 96386717.79 185349732.50 268380262.96 240012485.32 213604734.36 269351847.26 0.2704 0.2783 0.2035 0.3623 0.5006 0.4727 0.4510 0.5265 0.00 500421139.79 500421139.79 614370.08 390164.21 500645345.66 500589704.35 1.0000 0.0087 1.0001 1.0002 1.0002 1.0001 C000113321 1.00 500645345.66 500589704.35 1.0001 1.0002 1.0002 1.0001 144551059.33 149872749.12 113191005.94 141438497.65 107364608.57 141524887.55 140470040.41 102420164.53 524828399.67 565120101.15 0.0001 Y Security Investors LLC, voluntary waiver, 47208.01; RBC CAPITAL MARKETS RBC CAPITAL MARKETS 0.73% REPOXRBC U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N TREASURY INFL IX N/B 2019-04-15 2020-04-15 0.130000 - 0.130000 27261053.40 28622808.00 U.S. Treasuries (including strips) N Standard & Poor's NR 2017-06-01 2017-06-01 2017-06-01 N N N 0.0073 28061575.27 28061575.27 0.0561 N Y Y N MIZUHO MIZUHO 0.71% REPOXMIZU U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N US TREASURY N/B 2022-01-31 1.880000 11226678.60 11433667.90 U.S. Treasuries (including strips) N Standard & Poor's NR 2017-06-01 2017-06-01 2017-06-01 N N N 0.0071 11209472.52 11209472.52 0.0224 N Y Y N HSBC SECURITIES, INC. HSBC SECURITIES, INC. 0.7% REPOXHSBC U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. TREASURY STRIP PRIN 2039-08-15 2045-08-15 0.000000 - 0.000000 15002344.80 6593728.80 U.S. Treasuries (including strips) N Standard & Poor's NR 2017-06-01 2017-06-01 2017-06-01 N N N 0.0070 6464438.00 6464438.00 0.0129 N Y Y N Federal Home Loan Banks Federal Home Loan Banks 1.00% 3130A7YH2 US3130A7YH29 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-05 2017-09-05 2017-09-05 N N N 0.0100 100013.23 100013.23 0.0002 N N Y N Federal Home Loan Banks Federal Home Loan Banks 0.96% 3130A8F32 US3130A8F321 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-05 2017-12-05 2017-12-05 N N N 0.0096 355220.57 355220.57 0.0007 N N Y N Federal Home Loan Banks Federal Home Loan Banks 0.82% 3130ABAB2 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-20 2017-10-20 2017-10-20 N N N 0.0082 14999803.02 14999803.02 0.0300 N N N N Federal Agricultural Mortgage Corp Discount Notes Federal Agricultural Mortgage Corp Discount Notes 0.88% 31315LMM7 US31315LMM71 U.S. Government Agency Debt N Standard & Poor's NR 2017-10-03 2017-10-03 2017-10-03 N N N 0.0088 3988151.11 3988151.11 0.0080 N N N N Federal Farm Credit Discount Notes Federal Farm Credit Discount Notes 0.62% 313313HR2 US313313HR27 U.S. Government Agency Debt N Standard & Poor's NR 2017-07-03 2017-07-03 2017-07-03 N N N 0.0062 14991866.67 14991866.67 0.0299 N N Y N Federal Farm Credit Banks Federal Farm Credit Banks 0.82% 31331KG95 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-15 2017-06-15 2017-06-15 N N N 0.0082 1000337.96 1000337.96 0.0020 N N N N Federal Home Loan Banks Federal Home Loan Banks 0.61% 313379DD8 US313379DD85 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-21 2017-06-21 2017-06-21 N N N 0.0061 5971291.52 5971291.52 0.0119 N N N N Federal Home Loan Banks Federal Home Loan Banks 0.60% 313379FW4 US313379FW49 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-09 2017-06-09 2017-06-09 N N N 0.0060 35408067.59 35408067.59 0.0707 N N N N Federal Home Loan Banks Federal Home Loan Banks 0.81% 313383PD7 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-09 2017-06-09 2017-06-09 N N N 0.0081 2725216.26 2725216.26 0.0054 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.12% 313385NT9 U.S. Government Agency Debt N Standard & Poor's NR 2017-11-02 2017-11-02 2017-11-02 N N N 0.0112 497647.22 497647.22 0.0010 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.78% 313385GW0 U.S. Government Agency Debt N Standard & Poor's NR 2017-06-14 2017-06-14 2017-06-14 N N N 0.0080 29391828.05 29391828.05 0.0587 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.81% 313385GP5 US313385GP56 U.S. Government Agency Debt N Standard & Poor's NR 2017-06-07 2017-06-07 2017-06-07 N N N 0.0081 25296676.34 25296676.34 0.0505 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.79% 313385GH3 U.S. Government Agency Debt N Standard & Poor's NR 2017-06-01 2017-06-01 2017-06-01 N N N 0.0079 500000.00 500000.00 0.0010 N Y Y N Federal Home Loan Bank Federal Home Loan Bank Discount Notes 0.78% 313385GJ9 US313385GJ96 U.S. Government Agency Debt N Standard & Poor's NR 2017-06-02 2017-06-02 2017-06-02 N N N 0.0078 2299951.12 2299951.12 0.0046 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.75% 313385GM2 U.S. Government Agency Debt N Standard & Poor's NR 2017-06-05 2017-06-05 2017-06-05 N N N 0.0078 4499628.22 4499628.22 0.0090 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.78% 313385GU4 U.S. Government Agency Debt N Standard & Poor's NR 2017-06-12 2017-06-12 2017-06-12 N N N 0.0078 2674375.56 2674375.56 0.0053 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.77% 313385GR1 U.S. Government Agency Debt N Standard & Poor's AAA 2017-06-09 2017-06-09 2017-06-09 N N N 0.0077 3274448.25 3274448.25 0.0065 N N Y N Freddie Mac Discount Notes Freddie Mac Discount Notes 0.77% 313397GJ4 U.S. Government Agency Debt N Standard & Poor's NR 2017-06-02 2017-06-02 2017-06-02 N N N 0.0077 2999936.67 2999936.67 0.0060 N N Y N Freddie Mac Discount Notes Freddie Mac Discount Notes 0.76% 313397GQ8 U.S. Government Agency Debt N Standard & Poor's NR 2017-06-08 2017-06-08 2017-06-08 N N N 0.0076 1999708.34 1999708.34 0.0040 N N Y N Federal Farm Credit Banks Federal Farm Credit Banks 1.00% 3133EDWL2 US3133EDWL28 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2017-07-03 2017-07-03 N N N 0.0100 10000177.16 10000177.16 0.0200 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.86% 3133EEJ68 US3133EEJ683 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2018-05-11 2018-05-11 N N N 0.0086 5009025.13 5009025.13 0.0100 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.01% 3133EEQ94 US3133EEQ944 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-27 2017-11-27 2017-11-27 N N N 0.0101 145043.01 145043.01 0.0003 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.25% 3133EEJ76 US3133EEJ766 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2017-11-13 2017-11-13 N N N 0.0125 9002261.74 9002261.74 0.0180 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.03% 3133EFSD0 US3133EFSD06 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2017-09-14 2017-09-14 N N N 0.0103 30019936.56 30019936.56 0.0600 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.09% 3133EF3X3 US3133EF3X35 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2017-08-21 2017-08-21 N N N 0.0109 60004011.37 60004011.37 0.1199 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.05% 3133EFDH7 US3133EFDH74 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2017-09-18 2017-09-18 N N N 0.0095 10651273.90 10651273.90 0.0213 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.15% 3133EFNP8 US3133EFNP80 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2017-06-12 2017-06-12 N N N 0.0115 7000169.57 7000169.57 0.0140 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.93% 3133EGGQ2 US3133EGGQ20 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2017-12-20 2017-12-20 N N N 0.0093 25019474.26 25019474.26 0.0500 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.86% 3133EGH73 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2018-05-14 2018-05-14 N N N 0.0086 3007185.50 3007185.50 0.0060 N N N N Federal Home Loan Mortgage Corp Federal Home Loan Mortgage Corp 0.78% 3134G8L49 US3134G8L493 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-08-25 2017-08-25 2017-08-25 N N N 0.0078 2400110.34 2400110.34 0.0048 N N N N Federal National Mortgage Association Federal National Mortgage Association 0.61% 31359MEL3 US31359MEL37 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-01 2017-06-01 2017-06-01 N N N 0.0061 4750000.00 4750000.00 0.0095 N Y Y N Fannie Mae Discount Notes Fannie Mae Discount Notes 0.75% 313589GJ6 U.S. Government Agency Debt N Standard & Poor's AAA 2017-06-02 2017-06-02 2017-06-02 N N N 0.0075 20219584.37 20219584.37 0.0404 N N Y N Federal Home Loan Mortgage Corp Federal Home Loan Mortgage Corp 0.62% 3137EADH9 US3137EADH91 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-29 2017-06-29 2017-06-29 N N N 0.0062 10002952.33 10002952.33 0.0200 N N N N Federal National Mortgage Association Federal National Mortgage Association 0.71% 31398ADM1 US31398ADM18 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-12 2017-06-12 2017-06-12 N N N 0.0067 4804700.20 4804700.20 0.0096 N N N N United States Treasury Bill United States Treasury Bill 0.91% 912796LU1 US912796LU13 U.S. Treasury Debt N Standard & Poor's NR 2017-09-21 2017-09-21 2017-09-21 N N N 0.0091 59833781.11 59833781.11 0.1195 N Y Y N United States Treasury Bill United States Treasury Bill 0.75% 912796JX8 US912796JX89 U.S. Treasury Debt N Standard & Poor's AA+ 2017-06-22 2017-06-22 2017-06-22 N N N 0.0075 9995677.53 9995677.53 0.0200 N Y Y N United States Treasury Bill United States Treasury Bill 1.07% 912796MD8 U.S. Treasury Debt N Standard & Poor's NR 2017-11-24 2017-11-24 2017-11-24 N N N 0.0107 29846122.22 29846122.22 0.0596 N Y Y N U.S. Government Money Market Fund 2017-06-07 James Howley James Howley Assistant Treasurer