N-MFP/A LIVE N 2015-05-31 0000899148 S000003657 1 N N 033-59692 Security Investors, LLC 801-8008 Ernst & Young McLean VA None Rydex Fund Services, LLC 0000913181 84-05475 N N N Government/Agency 54 54 705985760.74 32254102.13 0.01 738239862.86 0.0012 0.9992 2015-05-31 0.9992 2015-05-31 C000113321 1000.00 738239862.86 1.00 59970370.68 803870390.52 743900019.84 0.0001 0.9992 2015-05-31 0.9992 2015-05-31 ABN AMRO FUNDING USA LLC ABN AMRO FUNDING USA LLC 0.26% 00084CV58 Financial Company Commercial Paper First Tier Security S&P A-1 2015-08-05 2015-08-05 N N N 15000000.00 14992958.00 0.0203 N 14992958.00 14992958.00 BANCO SANTANDER CHILE BANCO SANTANDER CHILE 0.28% 05968JU13 Financial Company Commercial Paper First Tier Security S&P A-1 2015-07-01 2015-07-01 N N N 15000000.00 14996500.00 0.0203 N 14996500.00 14996500.00 BANK OF NOVA SCOTIA BANK OF NOVA SCOTIA 0.33% 06417KYC7 Financial Company Commercial Paper First Tier Security S&P A-1 2015-11-12 2015-11-12 N N N 15000000.00 14977450.00 0.0203 N 14977450.00 14977450.00 FEDERAL HOME LOAN BANK FEDERAL HOME LOAN BANK 0.17% 3130A2LJ3 Government Agency Debt First Tier Security S&P AA+ 2015-07-22 2015-07-22 N N N 10000000.00 10000000.00 0.0135 N 10000000.00 10000000.00 FEDERAL HOME LOAN BANK FEDERAL HOME LOAN BANK 0.17% 3130A2MC7 Government Agency Debt First Tier Security S&P AA+ 2015-07-17 2015-07-17 N N N 10000000.00 9999463.00 0.0135 N 9999463.00 9999463.00 FEDERAL HOME LOAN BANK FEDERAL HOME LOAN BANK 0.3% 3130A3Q56 Government Agency Debt First Tier Security S&P AA+ 2015-12-30 2015-12-30 N N N 20000000.00 20000000.00 0.0271 N 20000000.00 20000000.00 FEDERAL HOME LOAN BANK FEDERAL HOME LOAN BANK 0.35% 3130A44R0 Government Agency Debt First Tier Security S&P AA+ 2016-03-07 2016-03-07 N N N 20000000.00 20000000.00 0.0271 N 20000000.00 20000000.00 FARMER MAC DISCOUNT NOTE FARMER MAC DISCOUNT NOTE 0.15% 31315KJR2 Government Agency Debt First Tier Security S&P A-1+ 2015-07-27 2015-07-27 N N N 5000000.00 4998833.00 0.0068 N 4998833.00 4998833.00 FARMER MAC DISCOUNT NOTE FARMER MAC DISCOUNT NOTE 0.15% 31315KMD9 Government Agency Debt First Tier Security S&P A-1+ 2015-09-25 2015-09-25 N N N 15000000.00 14992992.00 0.0203 N 14992992.00 14992992.00 FARMER MAC DISCOUNT NOTE FARMER MAC DISCOUNT NOTE 0.17% 31315KMS6 Government Agency Debt First Tier Security S&P A-1+ 2015-10-08 2015-10-08 N N N 10000000.00 9993908.00 0.0135 N 9993908.00 9993908.00 FARMER MAC DISCOUNT NOTE FARMER MAC DISCOUNT NOTE 0.2% 31315KPD6 Government Agency Debt First Tier Security S&P A-1+ 2015-11-12 2015-11-12 N N N 8000000.00 7992893.00 0.0108 N 7992893.00 7992893.00 FARMER MAC DISCOUNT NOTE FARMER MAC DISCOUNT NOTE 0.2% 31315KRD4 Government Agency Debt First Tier Security S&P A-1+ 2015-12-30 2015-12-30 N N N 10000000.00 9988222.00 0.0135 N 9988222.00 9988222.00 FARMER MAC FARMER MAC 0.23% 31315P5J4 Government Agency Debt First Tier Security S&P AA+ 2015-09-09 2015-09-09 N N N 10000000.00 9998958.00 0.0135 N 9998958.00 9998958.00 FEDERAL FARM CREDIT DISCOUNT NOTE FEDERAL FARM CREDIT DISCOUNT NOTE 0.14% 313312MG2 Government Agency Debt First Tier Security S&P A-1+ 2015-09-28 2015-09-28 N N N 5000000.00 4997686.00 0.0068 N 4997686.00 4997686.00 FEDERAL HOME LOAN DISCOUNT NOTE FEDERAL HOME LOAN DISCOUNT NOTE 0.06% 313384HP7 Government Agency Debt First Tier Security S&P A-1+ 2015-07-01 2015-07-01 N N N 45000000.00 44997938.00 0.0610 N 44997938.00 44997938.00 FEDERAL HOME LOAN DISCOUNT NOTE FEDERAL HOME LOAN DISCOUNT NOTE 0.15% 313384MP1 Government Agency Debt First Tier Security S&P A-1+ 2015-10-05 2015-10-05 N N N 3000000.00 2998425.00 0.0041 N 2998425.00 2998425.00 FREDDIE MAC DISCOUNT NOTE FREDDIE MAC DISCOUNT NOTE 0.14% 313396MK6 Government Agency Debt First Tier Security S&P A-1+ 2015-10-01 2015-10-01 N N N 10000000.00 9995256.00 0.0135 N 9995256.00 9995256.00 FEDERAL FARM CREDIT BANK FEDERAL FARM CREDIT BANK 0.19% 3133EDWP3 Government Agency Debt First Tier Security S&P AA+ 2015-10-01 2015-10-01 N N N 10000000.00 10000000.00 0.0135 N 10000000.00 10000000.00 ING (US) FUNDING LLC ING (US) FUNDING LLC 0.36% 4497W1X19 Financial Company Commercial Paper First Tier Security S&P A-1 2015-10-01 2015-10-01 N N N 10000000.00 9987800.00 0.0135 N 9987800.00 9987800.00 JUPITER SECURITIZATION COMPANY LLC JUPITER SECURITIZATION COMPANY LLC 0.22% 4820P3WQ2 Asset Backed Commercial Paper First Tier Security S&P A-1 2015-09-24 2015-09-24 N N N 2000000.00 1998594.00 0.0027 N 1998594.00 1998594.00 NATIXIS NY BRANCH NATIXIS NY BRANCH 0.45% 63873JA42 Other Commercial Paper First Tier Security S&P A-1 2016-01-04 2016-01-04 N N N 15000000.00 14959313.00 0.0203 N 14959313.00 14959313.00 NORDEA BANK AB NORDEA BANK AB 0.3% 65558GXN8 Financial Company Commercial Paper First Tier Security S&P A-1+ 2015-10-22 2015-10-22 N N N 7650000.00 7640884.00 0.0104 N 7640884.00 7640884.00 PRUDENTIAL FINANCIAL, INC. PRUDENTIAL FINANCIAL, INC. 0.2% 7443M3UA0 Financial Company Commercial Paper First Tier Security S&P A-1 2015-07-10 2015-07-10 N N N 10000000.00 9997833.00 0.0135 N 9997833.00 9997833.00 SHEFFIELD RECEIVABLES CORP. SHEFFIELD RECEIVABLES CORP. 0.21% 82124MU16 Asset Backed Commercial Paper First Tier Security S&P A-1 2015-07-01 2015-07-01 N N N 15000000.00 14997375.00 0.0203 N 14997375.00 14997375.00 SOCIETE GENERALE NORTH AMERICA, INC. SOCIETE GENERALE NORTH AMERICA, INC. 0.33% 83365ST52 Financial Company Commercial Paper First Tier Security S&P A-1 2015-06-05 2015-06-05 N N N 1200000.00 1199956.00 0.0016 N 1199956.00 1199956.00 SWEDBANK AB SWEDBANK AB 0.32% 87019SYC2 Financial Company Commercial Paper First Tier Security S&P A-1 2015-11-12 2015-11-12 N N N 15000000.00 14978133.00 0.0203 N 14978133.00 14978133.00 TOYOTA MOTOR CREDIT CORP TOYOTA MOTOR CREDIT CORP 0.2% 89233HWV2 Financial Company Commercial Paper First Tier Security S&P A-1+ 2015-09-29 2015-09-29 N N N 5000000.00 4996667.00 0.0068 N 4996667.00 4996667.00 TOYOTA MOTOR CREDIT CORP TOYOTA MOTOR CREDIT CORP 0.2% 89233HWV2 Financial Company Commercial Paper First Tier Security S&P A-1+ 2015-09-29 2015-09-29 N N N 495000.00 494670.00 0.0007 N 494670.00 494670.00 UMB FINANCIAL CORP. UMB FINANCIAL CORP. 0.025% REPO Treasury Repurchase Agreement N U.S. Treasury 2016-10-31 3.125 Treasury Debt 12303049.00 12794711.00 U.S. Treasury 2016-12-31 3.25 Treasury Debt 8947672.00 9453547.00 U.S. Treasury 2015-11-30 1.375 Treasury Debt 6710754.00 6751923.00 U.S. Treasury 2015-12-31 2.125 Treasury Debt 6039678.00 6161176.00 U.S. Treasury 2015-10-31 1.25 Treasury Debt 5592295.00 5624255.00 U.S. Treasury 2016-06-30 1.5 Treasury Debt 3355377.00 3417767.00 U.S. Treasury 2016-11-15 4.625 Treasury Debt 1300253.00 1380660.00 First Tier Security S&P NR 2015-06-01 2015-06-01 N N N 44738358.00 44738358.34 0.0606 N 44738358.34 44738358.34 HSBC HOLDINGS HSBC HOLDINGS 0.025% REPO Treasury Repurchase Agreement N U.S. Treasury 2043-05-15 0 Treasury Debt 268206458.00 115446788.00 U.S. Treasury 2043-02-15 0 Treasury Debt 30505118.00 13223969.00 First Tier Security S&P NR 2015-06-01 2015-06-01 N N N 126147792.00 126147791.58 0.1709 N 126147791.58 126147791.58 CREDIT SUISSE GROUP CREDIT SUISSE GROUP 0.025% REPO Treasury Repurchase Agreement N U.S. Treasury 2017-12-31 0.75 Treasury Debt 6819759.00 6844835.00 First Tier Security S&P NR 2015-06-01 2015-06-01 N N N 6710754.00 6710753.75 0.0091 N 6710753.75 6710753.75 RBC CAPITAL MARKETS RBC CAPITAL MARKETS 0.04% REPO Treasury Repurchase Agreement N U.S. Treasury 2017-04-15 0.125 Treasury Debt 7889296.00 8314532.00 U.S. Treasury 2018-04-15 0.125 Treasury Debt 14539966.00 15087400.00 U.S. Treasury 2016-04-15 0.125 Treasury Debt 10066131.00 10822603.00 First Tier Security S&P NR 2015-06-01 2015-06-01 N N N 33553769.00 33553769.00 0.0455 N 33553769.00 33553769.00 MIZUHO FINANCIAL GROUP MIZUHO FINANCIAL GROUP 0.05% REPO Treasury Repurchase Agreement N U.S. Treasury 2020-08-15 2.625 Treasury Debt 24578963.00 26237279.00 First Tier Security S&P NR 2015-06-01 2015-06-01 N N N 25724556.00 25724556.00 0.0348 N 25724556.00 25724556.00 HSBC HOLDINGS HSBC HOLDINGS 0.025% REPO Treasury Repurchase Agreement N U.S. Treasury 2043-02-15 0 Treasury Debt 357507700.00 154979588.00 First Tier Security S&P NR 2015-06-01 2015-06-01 N N N 151940732.00 151940732.00 0.2058 N 151940732.00 151940732.00