Figure 1: Total 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 401199 130021 594543 322984 147483 1444189
Jan 31, 2011 463967 120901 580769 320631 144890 1380644
Feb 28, 2011 470024 108536 565867 340363 148640 1371148
Mar 31, 2011 394061 106079 586395 347034 141449 1404531
Apr 29, 2011 408799 91948 631553 359723 133199 1388499
May 31, 2011 469838 92875 633178 335039 142450 1345873
Jun 30, 2011 417009 90312 591295 315791 134886 1350907
Jul 29, 2011 439359 93567 538966 296527 131646 1233632
Aug 31, 2011 514693 91814 498848 307870 141943 1403999
Sep 30, 2011 459220 81812 509581 281686 132725 1415141
Oct 31, 2011 501386 81128 470580 292484 133803 1412394
Nov 30, 2011 528351 80329 437297 299553 128475 1466322
Dec 30, 2011 450823 78820 456347 290986 127624 1507587
Jan 31, 2012 537570 80887 450764 308613 128716 1443938
Feb 29, 2012 568897 82142 443693 288972 131576 1466810
Mar 30, 2012 488489 81864 443134 290016 125229 1441748
Apr 30, 2012 565848 80617 449651 296005 128518 1370437
May 31, 2012 571779 76945 449558 298279 122165 1352709
Jun 29, 2012 514550 71201 432414 279573 116145 1378031
Jul 31, 2012 577429 72138 444886 292043 117161 1391310
Aug 31, 2012 594299 69177 460100 284717 121588 1336927
Sep 28, 2012 491283 69704 481215 279325 119692 1426566
Oct 31, 2012 594064 75719 455098 274917 118746 1357168
Nov 30, 2012 623740 78837 474069 298812 117223 1353996
Dec 31, 2012 508188 82840 524862 306060 124921 1436580
Jan 31, 2013 551477 79576 545449 355910 127745 1361975
Feb 28, 2013 527529 76064 529029 354810 124302 1382604
Mar 29, 2013 446926 68135 532172 334326 118028 1429454
Apr 30, 2013 522368 69067 511763 359572 112745 1371425
May 31, 2013 494773 74451 525621 376507 106902 1362979
Jun 28, 2013 414567 74651 524119 356349 105036 1424290
Jul 31, 2013 454429 72555 538467 373072 103881 1431995
Aug 30, 2013 427780 68998 556228 368615 105821 1441869
Sep 30, 2013 472458 70525 571706 357450 103815 1447218
Oct 31, 2013 462918 74260 559853 376715 105217 1432468
Nov 29, 2013 424924 74971 579920 369273 106652 1436335
Dec 31, 2013 479079 78942 585206 337078 105365 1464288
Jan 31, 2014 454459 81104 629308 360739 102232 1424416
Feb 28, 2014 460549 81556 614078 365583 99203 1405673
Mar 31, 2014 506872 85631 591022 345633 100145 1363951
Apr 30, 2014 471125 85955 615972 358668 100306 1324347
May 30, 2014 490732 85418 623360 361343 98990 1282224
Jun 30, 2014 568436 84300 598035 331501 97105 1232668
Jul 31, 2014 473416 88333 616295 346957 94963 1288878
Aug 29, 2014 479732 86495 618021 348733 95387 1310436
Sep 30, 2014 543661 88767 598433 341791 96229 1296483
Oct 31, 2014 479865 87398 603160 358995 92403 1371042
Nov 28, 2014 483087 92489 615412 357043 94140 1360527
Dec 31, 2014 612718 91995 580077 322050 97241 1377836
Jan 30, 2015 472657 91510 611275 359274 98217 1416881
Feb 27, 2015 496633 90009 610002 374169 93229 1368815
Mar 31, 2015 597498 89135 565628 339229 96556 1328811
Apr 30, 2015 469308 92046 564264 367150 90306 1343844
May 29, 2015 478835 89555 576506 371043 91581 1343000
Jun 30, 2015 640699 90059 540883 348320 92751 1269558
Jul 31, 2015 499826 88738 572594 374799 95805 1366868
Aug 31, 2015 516093 81687 573424 369085 99388 1406451
Sep 30, 2015 706702 78723 518770 341406 98318 1288177
Oct 30, 2015 570684 80709 536390 352983 97875 1437462
Nov 30, 2015 515719 80559 508976 333376 98101 1544359
Dec 31, 2015 697121 74776 448039 291423 100001 1446895
Jan 29, 2016 510453 74943 502491 317667 97195 1543244
Feb 29, 2016 520117 74121 509330 321857 99463 1606343
Mar 31, 2016 584108 67041 470149 299540 99428 1538581
Apr 29, 2016 514481 64145 445575 308805 96734 1584769
May 31, 2016 546439 62602 455482 297784 91568 1584935
Jun 30, 2016 625986 61647 399174 256348 85543 1537989
Jul 29, 2016 602868 63756 344414 245937 73248 1655869
Aug 31, 2016 718956 53558 282403 192840 51690 1722459
Sep 30, 2016 864042 46596 178704 126063 32102 1652714
Oct 31, 2016 804173 30874 161842 127254 30980 1756882
Nov 30, 2016 781671 31661 158633 133873 32372 1865517
Dec 30, 2016 818344 36567 155187 115539 32333 1764572
Jan 31, 2017 783275 35213 179572 127895 31076 1778987
Feb 28, 2017 815919 31191 186650 139592 31581 1730986
Mar 31, 2017 837831 32186 180647 138163 30980 1690345
Apr 28, 2017 856793 31847 190470 147758 33690 1626712
May 31, 2017 940277 29622 187222 145727 34389 1599464
Jun 30, 2017 955255 29394 170232 138260 37419 1547662
Jul 31, 2017 898471 28725 182466 146290 37163 1643466
Aug 31, 2017 960337 29604 185668 161470 40725 1608263
Sep 29, 2017 957945 27162 179223 157289 37703 1637470
Oct 31, 2017 952597 29610 193631 161509 38412 1701896
Nov 30, 2017 932308 30770 195913 168532 39785 1713876
Dec 29, 2017 988540 39662 172681 158651 41021 1695720
Jan 31, 2018 912325 34628 185940 182890 41392 1746112
Feb 28, 2018 890269 34008 176470 191836 39496 1836567
Mar 30, 2018 800273 36084 169562 174813 39234 1839362
Apr 30, 2018 909045 34052 171104 185397 37322 1777726
May 31, 2018 969879 34375 168038 177749 41010 1720220
Jun 29, 2018 939624 33980 171911 182959 41392 1706991
Jul 31, 2018 944757 38350 176300 203438 43912 1762587
Aug 31, 2018 931244 35157 176986 198865 45354 1750487
Sep 28, 2018 946946 38453 180186 202617 46927 1713023
Oct 31, 2018 963711 37743 195903 203673 46309 1743580
Nov 30, 2018 977301 42031 200229 198890 51280 1772381
Dec 31, 2018 1015355 42409 194749 182888 54689 1853526
Jan 31, 2019 1061171 36678 225430 200076 57621 1769440
Feb 28, 2019 1056001 36863 232632 217419 58507 1837930
Mar 29, 2019 996451 37024 226917 255405 57175 1952378
Apr 30, 2019 1078192 42275 237776 264857 58451 1821031
May 31, 2019 1141855 40670 242917 276352 60887 1829429
Jun 28, 2019 1168170 43106 257994 280877 61547 1802296
Jul 31, 2019 1242381 45615 257930 290337 62497 1804594
Aug 30, 2019 1261287 46460 261716 275537 62617 1891183
Sep 30, 2019 1180932 50041 253820 282648 62134 2055925
Oct 31, 2019 1149087 52915 267121 294641 61357 2135436
Nov 29, 2019 1111890 54108 280066 299083 62637 2182894
Dec 31, 2019 1181438 61245 269298 261474 61282 2179331
Jan 31, 2020 1245907 62307 295323 280926 59360 2087637
Feb 28, 2020 1265454 60540 292104 274784 63369 2074724
Mar 31, 2020 1506279 45028 216059 260815 52765 2677681
Apr 30, 2020 1241009 49013 227886 243484 54916 3473912
May 29, 2020 1030074 48361 219572 241902 61522 3719831
Jun 30, 2020 903593 49013 208881 235024 61859 3691159
Jul 31, 2020 944365 47813 196448 227126 58605 3585675
Aug 31, 2020 993809 48148 177629 210237 55583 3558299
Sep 30, 2020 1001794 47995 156857 187961 52508 3493836
Oct 30, 2020 947628 49988 148488 182957 47883 3421483
Nov 30, 2020 1028291 51310 136924 194027 45854 3421957
Dec 31, 2020 1012241 56531 126011 186201 45446 3359724
Jan 29, 2021 945908 58622 141751 221559 45879 3413194
Feb 26, 2021 1025415 58060 132699 228260 43445 3369880
Mar 31, 2021 1141945 52872 136821 234042 41060 3439390
Apr 30, 2021 1184027 51835 142786 237325 40807 3376869

Source: SEC form N-MFP.