N-MFP2 0000899148 XXXXXXXX 2017-03-31 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 51 92 140592870.10 200817323.88 242638907.95 212158519.30 286381694.82 182661259.26 230693661.72 336914310.74 276437768.01 336266246.69 0.2751 0.3456 0.3821 0.3693 0.4515 0.3574 0.3970 0.5306 0.4812 0.5301 0.00 633967707.97 633967707.97 360580.24 499888.27 633828399.94 633776883.21 1.0000 0.0083 1.0002 1.0001 1.0001 1.0002 1.0001 C000113321 1.00 633828399.94 633776883.21 1.0002 1.0001 1.0001 1.0002 1.0001 134041208.16 199247622.64 193938054.13 124017817.60 154649950.53 100771551.98 116295359.86 176908311.09 187389570.57 127608420.14 753659064.64 635805055.54 0.0001 Y Security Investors LLC, voluntary waiver, 108310.96; RBC Capital Markets RBC Capital Markets 0.72% REPOXRBC U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. TREASURY NOTES 2021-02-15 2021-05-31 2.000000 - 3.630000 30603300.00 32522096.10 U.S. Treasuries (including strips) N Standard & Poor's NR 2017-04-03 2017-04-03 2017-04-03 N N N 0.0072 31884311.07 31884311.07 0.0503 N Y Y N Federal Home Loan Banks Federal Home Loan Banks 0.831% 3130A7YH2 US3130A7YH29 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-05 2017-09-05 2017-09-05 N N N 0.0083 100021.67 100021.67 0.0002 N N N N Federal Home Loan Banks Federal Home Loan Banks 0.791% 3130A8F32 US3130A8F321 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-05 2017-12-05 2017-12-05 N N N 0.0079 355292.37 355292.37 0.0006 N N N N Federal Agricultural Mortgage Corporation 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 3982322.22 3982322.22 0.0063 N N N N Federal Agricultural Mortgage Corp. Federal Agricultural Mortgage Corp 0.756% 3132X0GK1 US3132X0GK13 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-05-11 2017-05-11 2017-05-11 N N N 0.0076 12002288.43 12002288.43 0.0189 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 14976362.50 14976362.50 0.0236 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 5975228.01 5975228.01 0.0094 N N N N Federal Home Loan Banks Federal Home Loan Banks 0.59% 313379FW4 US313379FW49 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-09 2017-06-09 2017-06-09 N N N 0.0059 31680028.25 31680028.25 0.0500 N N N N Federal Home Loan Bank Federal Home Loan Bank Discount Notes 0.76% 313385EL6 US313385EL60 U.S. Government Agency Debt N Standard & Poor's NR 2017-04-17 2017-04-17 2017-04-17 N N N 0.0076 1899366.67 1899366.67 0.0030 N N Y N Federal Home Loan Bank Federal Home Loan Bank Discount Notes 0.64% 313385EF9 US313385EF92 U.S. Government Agency Debt N Standard & Poor's NR 2017-04-12 2017-04-12 2017-04-12 N N N 0.0064 5298982.49 5298982.49 0.0084 N N Y N Federal Home Loan Bank Federal Home Loan Bank Discount Notes 0.76% 313385EA0 US313385EA06 U.S. Government Agency Debt N Standard & Poor's AAA 2017-04-07 2017-04-07 2017-04-07 N N N 0.0076 9998750.00 9998750.00 0.0158 N N Y N Federal Home Loan Bank 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 21967490.11 21967490.11 0.0347 N N N N Federal Home Loan Bank Federal Home Loan Bank Discount Notes 0.71% 313385EX0 US313385EX09 U.S. Government Agency Debt N Standard & Poor's NR 2017-04-28 2017-04-28 2017-04-28 N N N 0.0071 24986912.50 24986912.50 0.0394 N N Y N Federal Home Loan Bank Federal Home Loan Bank Discount Notes 0.75% 313385ED4 US313385ED45 U.S. Government Agency Debt N Standard & Poor's NR 2017-04-10 2017-04-10 2017-04-10 N N N 0.0075 7698572.75 7698572.75 0.0121 N N Y N Federal Farm Credit Banks Federal Farm Credit Banks 1% 3133EDX64 US3133EDX645 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-03 2017-04-10 2017-04-10 N N N 0.0100 4999999.94 4999999.94 0.0079 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1% 3133EDWL2 US3133EDWL28 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-03 2017-07-03 2017-07-03 N N N 0.0100 10000514.77 10000514.77 0.0158 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.964% 3133EEJ76 US3133EEJ766 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-04 2017-11-13 2017-11-13 N N N 0.0096 9003115.51 9003115.51 0.0142 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.873% 3133EERF9 US3133EERF97 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-04 2017-04-27 2017-04-27 N N N 0.0087 3000175.62 3000175.62 0.0047 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.945% 3133EEQ94 US3133EEQ944 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-27 2017-11-27 2017-11-27 N N N 0.0095 145057.71 145057.71 0.0002 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.045% 3133EFDH7 US3133EFDH74 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-03 2017-09-18 2017-09-18 N N N 0.0105 10651985.94 10651985.94 0.0168 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.054% 3133EFQF7 US3133EFQF71 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-03 2017-05-23 2017-05-23 N N N 0.0105 10000891.56 10000891.56 0.0158 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.965% 3133EFNP8 US3133EFNP80 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-04 2017-06-12 2017-06-12 N N N 0.0097 7001109.34 7001109.34 0.0110 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+ 2017-04-03 2017-09-14 2017-09-14 N N N 0.0103 30031505.82 30031505.82 0.0474 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.075% 3133EF3X3 US3133EF3X35 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-03 2017-08-21 2017-08-21 N N N 0.0108 60007112.35 60007112.35 0.0947 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 1.054% 3133EFFV4 US3133EFFV41 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-03 2017-05-30 2017-05-30 N N N 0.0105 10861966.09 10861966.09 0.0171 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.934% 3133EGGQ2 US3133EGGQ20 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-03 2017-12-20 2017-12-20 N N N 0.0093 25025312.12 25025312.12 0.0395 N N N N Federal Home Loan Mortgage Corp Federal Home Loan Mortgage Corp 0.6% 3134G6R70 US3134G6R700 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-05-26 2017-05-26 2017-05-26 N N N 0.0060 2500551.34 2500551.34 0.0039 N N N N Federal Home Loan Mortgage Corp Federal Home Loan Mortgage Corp 0.807% 3134G72G5 US3134G72G51 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-04-20 2017-04-20 2017-04-20 N N N 0.0081 3960380.46 3960380.46 0.0062 N N N N Freddie Mac. 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 2400189.41 2400189.41 0.0038 N N N N Fannie Mae Fannie Mae Discount Notes 0.71% 313589DW0 US313589DW05 U.S. Government Agency Debt N Standard & Poor's AAA 2017-04-03 2017-04-03 2017-04-03 N N N 0.0071 49998055.55 49998055.55 0.0789 N Y Y 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 4745186.23 4745186.23 0.0075 N N N N Freddie Mac. 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 10009379.37 10009379.37 0.0158 N N N N Federal National Mortgage Association Federal National Mortgage Association 0.6% 31398ADM1 US31398ADM18 U.S. Government Agency Debt N Standard & Poor's AA+ 2017-06-12 2017-06-12 2017-06-12 N N N 0.0060 2319570.31 2319570.31 0.0037 N N N N United States Treasury Bill United States Treasury Bill 0.73% 912796JP5 US912796JP55 U.S. Treasury Debt N Standard & Poor's NR 2017-04-27 2017-04-27 2017-04-27 N N N 0.0073 64966062.22 64966062.22 0.1025 N Y Y N United States Treasury Bill United States Treasury Bill 0.9% 912796LU1 US912796LU13 U.S. Treasury Debt N Standard & Poor's NR 2017-09-21 2017-09-21 2017-09-21 N N N 0.0090 94594146.81 94594146.81 0.1492 N Y Y N United States Treasury Bill United States Treasury Bill 0.66% 912796LE7 US912796LE70 U.S. Treasury Debt N Standard & Poor's NR 2017-06-15 2017-06-15 2017-06-15 N N N 0.0066 44939510.46 44939510.46 0.0709 N Y Y N U.S. Government Money Market Fund 2017-04-04 James Howley James Howley Assistant Treasurer