N-MFP2 0000899148 XXXXXXXX 2017-12-31 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 52 104 143850808.70 188071423.77 220520007.11 245033327.35 250085113.86 260848236.88 286088554.91 296616847.33 268136435.27 262284909.21 0.2747 0.3537 0.4089 0.4728 0.4726 0.4981 0.5380 0.5500 0.5174 0.4956 3042.94 529135040.94 529135040.94 171370.35 627354.78 528682099.45 528582928.17 1.0000 0.0138 1.0000 1.0001 1.0001 1.0001 1.0001 C000113321 1.00 528682099.45 528582928.17 1.0000 1.0001 1.0001 1.0001 1.0001 142946376.57 131491288.97 150601372.43 164945231.17 131307440.20 128193281.28 111628956.97 132789570.72 109960936.27 72034336.96 532849864.22 529443078.86 0.0045 N Bank of America Bank of America 1.40% REPOXBANK U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N 1 1/4 NOTE N 23 2023-07-31 2040-11-15 1.250000 - 4.250000 23599999.80 27532871.30 U.S. Treasuries (including strips) N Standard & Poor's NR 2018-01-02 2018-01-02 2018-01-02 N N N 0.0140 26992979.85 26992979.85 0.0511 N Y Y N JP Morgan Chase & Co. JP Morgan Chase & Co. 1.41% REPOXJPM U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N 1 7/8 NOTE W 22 2020-04-15 2045-02-15 1.125000 - 3.875000 50915674.10 51588361.60 U.S. Treasuries (including strips) N Standard & Poor's NR 2018-01-02 2018-01-02 2018-01-02 N N N 0.0141 50576786.29 50576786.29 0.0957 N Y Y N Federal Home Loan Banks Federal Home Loan Banks 1.37% 3130A7DE2 US3130A7DE27 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-02-22 2018-02-22 2018-02-22 N N N 0.0137 2500338.76 2500338.76 0.0047 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.46% 3130A7H73 US3130A7H733 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-03-29 2018-03-29 2018-03-29 N N N 0.0146 2996722.99 2996722.99 0.0057 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.40% 3130A7CX1 US3130A7CX17 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-03-19 2018-03-19 2018-03-19 N N N 0.0140 1198677.79 1198677.79 0.0023 N N Y N Federal Home Loan Banks Federal Home Loan Banks 1.31% 3130A8VC4 US3130A8VC42 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-26 2018-01-26 2018-01-26 N N N 0.0131 3400054.32 3400054.32 0.0064 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.26% 3130A8QM8 US3130A8QM88 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-12 2018-01-12 2018-01-12 N N N 0.0126 549908.90 549908.90 0.0010 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.16% 3130A9P21 US3130A9P211 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-06 2018-04-06 2018-04-06 N N N 0.0116 999946.17 999946.17 0.0019 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.53% 3130A9M73 US3130A9M739 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-03-26 2018-03-26 2018-03-26 N N N 0.0153 3499590.76 3499590.76 0.0066 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.43% 3130A9HG9 US3130A9HG94 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-03-16 2018-03-16 2018-03-16 N N N 0.0143 1260060.02 1260060.02 0.0024 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.33% 3130A97K1 US3130A97K15 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-02-26 2018-02-26 2018-02-26 N N N 0.0133 5624870.22 5624870.22 0.0106 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.43% 3130AAPE2 US3130AAPE26 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-23 2018-07-23 2018-07-23 N N N 0.0143 1500517.57 1500517.57 0.0028 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.37% 3130ABV37 US3130ABV373 U.S. Government Agency Debt N Standard & Poor's NR 2018-01-19 2018-01-19 2018-01-19 N N N 0.0137 10000000.00 10000000.00 0.0189 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.43% 3130ABVH6 US3130ABVH65 U.S. Government Agency Debt N Standard & Poor's NR 2018-01-26 2018-04-26 2018-04-26 N N N 0.0143 29999607.77 29999607.77 0.0567 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.41% 3130AC6Q2 US3130AC6Q24 U.S. Government Agency Debt N Standard & Poor's NR 2018-01-23 2018-03-23 2018-03-23 N N N 0.0141 61000000.00 61000000.00 0.1154 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.43% 3130ACUN2 US3130ACUN26 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-23 2018-11-23 2018-11-23 N N N 0.0143 9000000.00 9000000.00 0.0170 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.40% 3130ACUH5 US3130ACUH57 U.S. Government Agency Debt N Standard & Poor's NR 2018-01-22 2018-08-22 2018-08-22 N N N 0.0140 45000000.00 45000000.00 0.0851 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.44% 3130AD3B6 US3130AD3B63 U.S. Government Agency Debt N Standard & Poor's NR 2018-01-25 2018-06-25 2018-06-25 N N N 0.0144 27000000.00 27000000.00 0.0511 N N N N Federal Home Loan Banks Federal Home Loan Banks 1.36% 313378A43 US313378A439 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-03-09 2018-03-09 2018-03-09 N N N 0.0136 460016.50 460016.50 0.0009 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.31% 313385SP2 US313385SP29 U.S. Government Agency Debt N Standard & Poor's NR 2018-02-02 2018-02-02 2018-02-02 N N N 0.0131 1598165.33 1598165.33 0.0030 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.26% 313385RP3 US313385RP38 U.S. Government Agency Debt N Standard & Poor's NR 2018-01-09 2018-01-09 2018-01-09 N N N 0.0126 2099421.33 2099421.33 0.0040 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.84% 313385R73 US313385R735 U.S. Government Agency Debt N Standard & Poor's NR 2018-12-03 2018-12-03 2018-12-03 N N N 0.0184 688370.66 688370.66 0.0013 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.31% 313385SS6 US313385SS67 U.S. Government Agency Debt N Standard & Poor's NR 2018-02-05 2018-02-05 2018-02-05 N N N 0.0131 1697867.92 1697867.92 0.0032 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.26% 313385RG3 US313385RG39 U.S. Government Agency Debt N Standard & Poor's NR 2018-01-02 2018-01-02 2018-01-02 N N N 0.0126 28699011.44 28699011.44 0.0543 N Y Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.28% 313385RK4 US313385RK41 U.S. Government Agency Debt N Standard & Poor's NR 2018-01-05 2018-01-05 2018-01-05 N N N 0.0128 5006296.24 5006296.24 0.0095 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.72% 313385R81 US313385R818 U.S. Government Agency Debt N Standard & Poor's NR 2018-12-04 2018-12-04 2018-12-04 N N N 0.0172 8367119.03 8367119.03 0.0158 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.31% 313385SU1 US313385SU14 U.S. Government Agency Debt N Standard & Poor's NR 2018-02-07 2018-02-07 2018-02-07 N N N 0.0131 1797613.50 1797613.50 0.0034 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.20% 313385UL8 US313385UL86 U.S. Government Agency Debt N Standard & Poor's NR 2018-03-19 2018-03-19 2018-03-19 N N N 0.0120 9974761.11 9974761.11 0.0189 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.48% 3133EEUZ1 US3133EEUZ15 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-03-26 2018-03-26 2018-03-26 N N N 0.0148 10003888.75 10003888.75 0.0189 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.37% 3133EEJ68 US3133EEJ683 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-02 2018-05-11 2018-05-11 N N N 0.0137 5003467.72 5003467.72 0.0095 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.45% 3133EFEC7 US3133EFEC78 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-03-18 2018-09-18 2018-09-18 N N N 0.0145 2002050.45 2002050.45 0.0038 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.42% 3133EFWG8 US3133EFWG80 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-26 2018-03-26 2018-03-26 N N N 0.0142 1210894.39 1210894.39 0.0023 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.37% 3133EGH73 US3133EGH732 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-02 2018-05-14 2018-05-14 N N N 0.0137 3002798.95 3002798.95 0.0057 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.59% 3133EGJT3 US3133EGJT32 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-07-05 2018-07-05 2018-07-05 N N N 0.0159 4979370.34 4979370.34 0.0094 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.39% 3133EGQD0 US3133EGQD07 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-01-02 2018-08-10 2018-08-10 N N N 0.0139 13523260.11 13523260.11 0.0256 N N N N Federal Home Loan Mortgage Corp Federal Home Loan Mortgage Corp 1.55% 3137EABP3 US3137EABP36 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-06-13 2018-06-13 2018-06-13 N N N 0.0155 1014761.28 1014761.28 0.0019 N N N N Federal Home Loan Mortgage Corp Federal Home Loan Mortgage Corp 1.24% 3137EADP1 US3137EADP18 U.S. Government Agency Debt N Standard & Poor's AA+ 2018-03-07 2018-03-07 2018-03-07 N N N 0.0124 984352.87 984352.87 0.0019 N N N N United States Treasury Bill United States Treasury Bill 1.28% 912796NX3 US912796NX34 U.S. Treasury Debt N Standard & Poor's NR 2018-03-22 2018-03-22 2018-03-22 N N N 0.0128 99221816.64 99221816.64 0.1877 N Y Y N United States Treasury Bill United States Treasury Bill 1.50% 912796PL7 US912796PL77 U.S. Treasury Debt N Standard & Poor's NR 2018-06-14 2018-06-14 2018-06-14 N N N 0.0150 44699674.97 44699674.97 0.0845 N Y Y N U.S. Government Money Market Fund 2018-01-05 James Howley James Howley Assistant Treasurer