N-MFP1 0000899148 XXXXXXXX 2016-08-31 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 Government/Agency N 17 99 392883476.85 309300236.34 262623565.18 275739986.68 411432644.29 323799643.85 322065593.07 313337218.93 0.5967 0.4681 0.5231 0.5591 0.6249 0.4900 0.6415 0.6353 735.84 494867947.43 494867947.43 175414.28 180442.14 494863655.41 494843306.38 1.0000 0.0037 1.0000 1.0000 1.0001 1.0001 C000113321 1.00 494863655.41 494843306.38 1.0000 1.0000 1.0001 1.0001 193371082.88 225946349.91 242873097.33 240554801.81 95501045.77 254289470.27 80734394.61 89640858.83 690353346.07 886436976.24 0.0001 Y Security Investors LLC, voluntary waiver, 287407.45; MIZUHO MIZUHO 0.0029% REPOXMIZU U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. TREASURY NOTES 2020-02-15 8.500000 78855300.00 99582938.50 U.S. Treasuries (including strips) Unrated Security Standard & Poor's NR 2016-09-01 2016-09-01 2016-09-01 N N N 0.0029 97630254.71 97630254.71 0.1973 N Y Y N Federal Home Loan Banks Federal Home Loan Banks 0.0057% 3130A8MB6 US3130A8MB69 U.S. Government Agency Debt First Tier Security Standard & Poor's AA+ 2016-09-28 2017-06-28 2017-06-28 N N N 0.0057 35000000.00 35000000.00 0.0707 N N N N Federal Home Loan Banks Federal Home Loan Banks 0.0031% 313370TW8 U.S. Government Agency Debt First Tier Security Standard & Poor's AA+ 2016-09-09 2016-09-09 2016-09-09 N N N 0.0031 11604212.27 11604212.27 0.0234 N N N N Federal Home Loan Banks Federal Home Loan Banks 0.0046% 313371PV2 U.S. Government Agency Debt First Tier Security Standard & Poor's AA+ 2016-12-09 2016-12-09 2016-12-09 N N N 0.0046 13000844.17 13000844.17 0.0263 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.0027% 313384E47 U.S. Government Agency Debt First Tier Security Standard & Poor's NR 2016-09-02 2016-09-02 2016-09-02 N N N 0.0027 3046977.15 3046977.15 0.0062 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.0051% 313384T33 US313384T338 U.S. Government Agency Debt First Tier Security Standard & Poor's NR 2016-12-14 2016-12-14 2016-12-14 N N N 0.0051 5991333.33 5991333.33 0.0121 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.0030% 313384E96 U.S. Government Agency Debt First Tier Security Standard & Poor's NR 2016-09-07 2016-09-07 2016-09-07 N N N 0.0030 3999800.00 3999800.00 0.0081 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.0028% 313384F20 U.S. Government Agency Debt First Tier Security Standard & Poor's NR 2016-09-08 2016-09-08 2016-09-08 N N N 0.0028 30551336.56 30551336.56 0.0617 N N Y N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 0.0054% 313384P94 US313384P948 U.S. Government Agency Debt First Tier Security Standard & Poor's AAA 2016-11-18 2016-11-18 2016-11-18 N N N 0.0054 4055337.77 4055337.77 0.0082 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.0057% 3133EF3X3 US3133EF3X35 U.S. Government Agency Debt First Tier Security Standard & Poor's AA+ 2016-09-01 2017-08-21 2017-08-21 N N N 0.0057 60017642.72 60017642.72 0.1213 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.0055% 3133EFQF7 U.S. Government Agency Debt First Tier Security Standard & Poor's AA+ 2016-09-01 2017-05-23 2017-05-23 N N N 0.0055 10004421.66 10004421.66 0.0202 N N N N Federal Farm Credit Banks Federal Farm Credit Banks 0.0056% 3133EGPH2 U.S. Government Agency Debt First Tier Security Standard & Poor's AA+ 2016-09-01 2017-08-28 2017-08-28 N N N 0.0056 19997870.59 19997870.59 0.0404 N N N N United States Treasury Bill United States Treasury Bill 0.0028% 912796JL4 US912796JL42 U.S. Treasury Debt First Tier Security Standard & Poor's AA+ 2016-09-22 2016-09-22 2016-09-22 N N N 0.0028 199967916.50 199967916.50 0.4041 N Y Y N U.S. Government Money Market Fund 2016-09-07 Paul Davio Paul Davio Assistant Treasurer