Pioneer Research Fund

Top 10 Portfolio Holdings as of 5/31/2013
Default: sorted by market value

Security Name Par / Shares Market Value
3M Co. 11,338 $1,250,241
ACE, Ltd. 7,398 $663,453
Actavis, Inc. 5,613 $692,027
Aetna, Inc. 7,490 $452,246
Aflac, Inc. 11,478 $639,210
Allergan, Inc./United States 5,198 $517,149
Altria Group, Inc. 17,219 $621,606
Amazon.com, Inc. 2,706 $727,995
Ameren Corp. 27,470 $935,079
American Campus Communities, Inc. 11,814 $482,366
American Electric Power Co, Inc. 14,629 $670,301
Analog Devices, Inc. 13,401 $615,508
Apple, Inc. 5,754 $2,587,459
AstraZeneca Plc (A.D.R.) 4,350 $222,938
Campbell Soup Co. 14,585 $624,384
Cardinal Health, Inc. 9,289 $436,211
Celgene Corp. 6,167 $762,550
CenturyLink, Inc. 4,772 $162,964
Chevron Corp. 16,690 $2,048,698
Chipotle Mexican Grill, Inc. 1,319 $476,159
Citigroup, Inc. 37,532 $1,951,289
Citrix Systems, Inc. 6,521 $419,626
Colgate-Palmolive Co. 9,304 $538,143
Comcast Corp. 19,435 $780,315
Covidien Plc 6,745 $428,982
CST Brands, Inc. 1,188 $36,103
Cummins, Inc. 6,253 $748,046
CVS Caremark Corp. 15,208 $875,677
DaVita HealthCare Partners, Inc. 2,081 $258,190
Discover Financial Services 14,265 $676,304
Ecolab, Inc. 11,375 $960,846
EMC Corp./MA 27,020 $669,015
Express Scripts Holding Co. 8,390 $521,187
F5 Networks, Inc. 4,202 $349,648
FedEx Corp. 5,210 $501,931
FMC Technologies, Inc. 7,060 $392,960
Fomento Economico Mexicano SAB de CV (A.D.R.) 3,337 $362,365
Gilead Sciences, Inc. 15,338 $835,614
Google, Inc. 2,126 $1,850,492
Green Mountain Coffee Roasters, Inc. 8,480 $620,142
Halliburton Co. 22,403 $937,566
Hartford Financial Services Group, Inc. 17,100 $523,773
Humana, Inc. 4,469 $361,006
Ingersoll-Rand Plc 11,634 $669,304
Invesco, Ltd. 7,901 $266,580
Johnson & Johnson 16,518 $1,390,485
Joy Global, Inc. 10,581 $572,220
KBR, Inc. 15,781 $569,694
KeyCorp 40,720 $438,962
Lowe's Companies, Inc. 16,171 $680,961
Macys, Inc. 9,788 $473,152
Marathon Oil Corp. 26,154 $899,436
Marathon Petroleum Corp. 7,304 $602,580
Marriott International, Inc./DE 8,326 $349,775
Maxim Integrated Products, Inc. 10,640 $313,774
Microsoft Corp. 47,512 $1,657,219
Monsanto Co. 4,520 $454,893
Morgan Stanley 13,600 $356,931
NextEra Energy, Inc. 8,170 $617,815
Nuance Communications, Inc. 10,962 $208,278
Occidental Petroleum Corp. 8,145 $749,910
Oracle Corp. 32,804 $1,107,463
PepsiCo, Inc. 15,580 $1,258,397
Pfizer, Inc. 51,457 $1,401,174
Philip Morris International, Inc. 10,592 $962,919
Plum Creek Timber Co, Inc. 10,000 $477,000
QUALCOMM, Inc. 11,200 $710,976
Raytheon Co. 12,570 $837,665
Regions Financial Corp. 52,600 $480,238
Ross Stores, Inc. 8,390 $539,477
Schlumberger, Ltd. 15,662 $1,143,796
Starbucks Corp. 10,045 $633,538
Teva Pharmaceutical Industries, Ltd. (A.D.R.) 8,763 $334,747
The Allstate Corp. 12,563 $606,039
The Carlyle Group LP 11,493 $335,136
The Estee Lauder Companies, Inc. 9,847 $667,430
The Goldman Sachs Group, Inc. 5,288 $857,079
The Hershey Co. 5,773 $514,432
The Home Depot, Inc. 12,574 $989,071
The Manitowoc Co, Inc. 29,584 $621,560
The Mosaic Co. 13,835 $841,445
The PNC Financial Services Group, Inc. 21,064 $1,509,025
The Walt Disney Co. 21,319 $1,344,803
Time Warner, Inc. 16,192 $945,127
True Religion Apparel, Inc. 11,296 $359,665
Union Pacific Corp. 4,302 $665,175
United Technologies Corp. 8,571 $813,388
Unum Group 13,730 $391,030
Valero Energy Corp. 10,230 $415,645
Verizon Communications, Inc. 31,446 $1,524,502
Vertex Pharmaceuticals, Inc. 9,535 $765,756
Visa, Inc. 3,440 $612,802
Walter Investment Management Corp. 9,843 $358,384
Xilinx, Inc. 13,258 $538,938
Yahoo!, Inc. 32,832 $863,482

The portfolio is actively managed, and current holdings may be different.

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