Figure 2: Prime Money Market Fund Investment Holdings by Instrument
Millions of dollars
Date U.S. Government security repo (millions) Other repo (millions) Certificates of deposit (millions) Unsecured commercial paper (millions) Asset-backed commercial paper (millions) Other instruments (millions)
Dec 31, 2010 133473 104433 586110 310908 143442 517567
Jan 31, 2011 192882 105688 572148 308366 140738 488299
Feb 28, 2011 196670 94089 556587 325646 143377 489291
Mar 31, 2011 144561 92133 570718 330063 135712 514461
Apr 29, 2011 163513 90252 614263 342505 128471 512008
May 31, 2011 211143 89814 612276 317340 135753 472271
Jun 30, 2011 155932 88273 575796 300945 128555 472168
Jul 29, 2011 186400 91343 528024 280515 125696 437420
Aug 31, 2011 181817 89272 492787 296247 136102 526223
Sep 30, 2011 152090 79506 503045 270860 126443 531944
Oct 31, 2011 178993 78941 466148 281760 129580 525787
Nov 30, 2011 187834 78948 433155 288206 124077 543781
Dec 30, 2011 146538 77956 452304 280437 122443 553816
Jan 31, 2012 210836 80050 446249 298756 124271 500894
Feb 29, 2012 237667 79936 438556 279212 126159 554684
Mar 30, 2012 193861 80858 438562 281058 120845 544104
Apr 30, 2012 231153 80133 449063 288663 125038 523487
May 31, 2012 232406 76326 448914 291055 118741 518427
Jun 29, 2012 203925 69827 431601 272707 112691 525428
Jul 31, 2012 240980 71551 444083 284654 113853 533278
Aug 31, 2012 271831 68663 459190 277147 118176 499913
Sep 28, 2012 201395 69538 480443 272041 116642 562536
Oct 31, 2012 278360 75645 454398 267820 115504 510792
Nov 30, 2012 295758 75070 473414 291204 113882 509315
Dec 31, 2012 197377 81781 524144 298779 121982 528115
Jan 31, 2013 210756 79466 544711 348170 125600 475939
Feb 28, 2013 203460 75625 528413 346950 122433 497028
Mar 29, 2013 167895 67890 532078 327183 116782 528941
Apr 30, 2013 192532 68604 511671 352231 111458 517587
May 31, 2013 160783 73946 525532 369045 105646 503861
Jun 28, 2013 129345 73925 524032 348768 104886 524272
Jul 31, 2013 145519 72377 538382 365528 103865 511873
Aug 30, 2013 145617 68920 556143 361297 105799 518691
Sep 30, 2013 168899 70443 571614 349674 103693 495426
Oct 31, 2013 164522 74185 559750 368022 105114 518906
Nov 29, 2013 142836 74893 579823 361041 106480 513884
Dec 31, 2013 203382 78883 585110 328397 105208 473837
Jan 31, 2014 155901 80778 629217 351667 102207 482262
Feb 28, 2014 160605 81492 613990 356224 99178 474999
Mar 31, 2014 228866 85573 590928 336347 100120 424140
Apr 30, 2014 164990 85691 615826 349848 100270 430755
May 30, 2014 162393 85327 623169 351842 98960 417853
Jun 30, 2014 238977 84229 597853 321475 97085 359297
Jul 31, 2014 160100 88251 616131 337934 94948 420297
Aug 29, 2014 144609 86411 617783 339032 95372 447751
Sep 30, 2014 212268 88702 598180 331828 96214 377398
Oct 31, 2014 141115 87345 602875 349528 92388 480302
Nov 28, 2014 138548 92437 615412 346774 94115 470156
Dec 31, 2014 257547 91957 580077 312285 97206 420669
Jan 30, 2015 134213 90976 611275 349480 98207 486425
Feb 27, 2015 143526 89764 610002 364495 93218 473914
Mar 31, 2015 255338 89021 565628 329620 96541 401221
Apr 30, 2015 119037 91837 564264 357135 90277 480513
May 29, 2015 125368 88759 576506 361728 91551 480401
Jun 30, 2015 241839 89824 540883 339698 92747 383545
Jul 31, 2015 126722 88644 572594 366925 95776 476929
Aug 31, 2015 144858 81546 573424 360308 99382 493396
Sep 30, 2015 309850 78687 518770 333237 98308 395557
Oct 30, 2015 195040 79545 536390 344967 97867 531148
Nov 30, 2015 161170 80431 508976 324327 98101 550969
Dec 31, 2015 290744 74261 448039 282213 100001 360669
Jan 29, 2016 134995 74194 502491 307637 97175 448070
Feb 29, 2016 132833 71748 509330 311027 99442 466393
Mar 31, 2016 205256 66152 470149 288279 99407 375468
Apr 29, 2016 121730 64145 442416 300071 93355 445992
May 31, 2016 113953 61936 452460 289239 87894 407331
Jun 30, 2016 151814 60948 396077 248219 81925 318210
Jul 29, 2016 114879 62356 342282 238530 70547 404216
Aug 31, 2016 91346 53491 281489 187010 50312 365998
Sep 30, 2016 111642 44715 178704 121486 32102 243189
Oct 31, 2016 43663 30808 161842 122873 30980 172655
Nov 30, 2016 38371 31538 158633 128890 32372 177959
Dec 30, 2016 70465 36503 155187 110191 32333 140605
Jan 31, 2017 51266 33958 179572 122364 31076 142281
Feb 28, 2017 53314 30619 186650 133992 31581 147502
Mar 31, 2017 63688 32127 180647 133480 30980 153013
Apr 28, 2017 54775 31799 190470 143078 33690 149865
May 31, 2017 68622 29588 187222 140758 34389 149890
Jun 30, 2017 96771 29367 170232 132296 37419 143365
Jul 31, 2017 61611 28086 182465 140007 37163 172937
Aug 31, 2017 45840 27854 185668 155372 40725 185643
Sep 29, 2017 82004 27162 179123 151634 37703 182804
Oct 31, 2017 62740 29374 193509 156371 38412 189405
Nov 30, 2017 52734 30419 195791 163315 39785 196304
Dec 29, 2017 82836 39500 172554 153757 41021 168324
Jan 31, 2018 37792 34455 185818 178059 41392 190391
Feb 28, 2018 43062 33336 176348 187106 39496 188780
Mar 30, 2018 58280 35568 169440 169834 39234 183347
Apr 30, 2018 63179 33139 171034 180923 37322 198572
May 31, 2018 63962 34277 167938 172943 41010 174456
Jun 29, 2018 72218 33652 171786 178249 41392 172144
Jul 31, 2018 48978 35790 176245 198926 43912 203280
Aug 31, 2018 67516 34307 176931 194379 45354 211950
Sep 28, 2018 83830 37853 180141 198233 46927 195755
Oct 31, 2018 83679 37743 195858 199130 46309 183389
Nov 30, 2018 83565 40791 200214 194232 51280 198190
Dec 31, 2018 97948 42309 194749 178074 54689 195016
Jan 31, 2019 111433 36678 225430 194964 57621 197883
Feb 28, 2019 107635 36863 232632 212322 58507 230898
Mar 29, 2019 101073 36874 226917 250320 57175 298735
Apr 30, 2019 130145 42275 237776 259637 58451 273267
May 31, 2019 131186 40670 242917 271214 60887 261138
Jun 28, 2019 146683 43106 257994 275526 61547 234026
Jul 31, 2019 159594 45615 257930 284872 62497 229960
Aug 30, 2019 157225 46460 261716 269706 62617 263150
Sep 30, 2019 138961 50041 253820 276892 62134 292714
Oct 31, 2019 143720 52915 267121 289077 61357 290018
Nov 29, 2019 132133 54108 280066 293339 62637 296206
Dec 31, 2019 182348 61245 269298 255545 61282 259628
Jan 31, 2020 150809 62307 295323 274811 59360 278636
Feb 28, 2020 160028 60540 292104 268942 63369 261537
Mar 31, 2020 124113 45028 216059 255475 52765 288076
Apr 30, 2020 108762 49013 227886 237687 54910 417238
May 29, 2020 105507 48361 219572 236029 61522 485160
Jun 30, 2020 106354 49013 208881 228878 61859 517096
Jul 31, 2020 94715 47813 196448 221282 58605 531262
Aug 31, 2020 110566 48148 177629 204394 55583 553110
Sep 30, 2020 113312 47995 156798 182453 52508 445976
Oct 30, 2020 88364 49988 148488 177767 47883 447594
Nov 30, 2020 96446 51310 136924 188769 45854 443668
Dec 31, 2020 131492 56531 126011 180771 45446 369924
Jan 29, 2021 62124 58622 141751 216223 45879 425483
Feb 26, 2021 61695 58060 132699 222860 43445 402785
Mar 31, 2021 106857 52872 136821 228797 41060 354949
Apr 30, 2021 106487 51835 142786 232097 40807 348153

Source: SEC form N-MFP.