Pioneer Select Mid Cap Growth Fund

Top 10 Portfolio Holdings as of 6/30/2015
Default: sorted by market value

Security Name Par / Shares Market Value
Acuity Brands, Inc. 38,026 $6,843,919
Advance Auto Parts, Inc. 106,869 $17,023,163
Affiliated Managers Group, Inc. 65,833 $14,391,094
Agrium, Inc. 23,547 $2,494,805
Akamai Technologies, Inc. 277,448 $19,371,419
Align Technology, Inc. 266,962 $16,741,187
Alkermes Plc 262,154 $16,866,988
Alliance Data Systems Corp. 15,981 $4,665,493
American Airlines Group, Inc. 579,567 $23,145,008
ANSYS, Inc. 70,966 $6,474,938
Autodesk, Inc. 151,251 $7,573,894
Avago Technologies, Ltd. 151,917 $20,194,327
B/E Aerospace Inc 117,491 $6,450,256
BankUnited, Inc. 140,687 $5,054,884
Berry Plastics Group, Inc. 183,158 $5,934,319
BorgWarner, Inc. 110,344 $6,271,953
Boston Scientific Corp. 1,273,511 $22,541,145
Boulevard Acquisition Corp 421,364 $5,267,050
Broadcom Corp. 173,799 $8,948,911
Cabot Oil & Gas Corp. 391,685 $12,353,745
Cadence Design Systems, Inc. 314,813 $6,189,224
Cardinal Health, Inc. 225,497 $18,862,824
Carlisle Companies, Inc. 123,444 $12,359,213
Charles River Laboratories International, Inc. 223,059 $15,689,970
Chart Industries, Inc. 129,005 $4,611,929
Chipotle Mexican Grill, Inc. 27,280 $16,504,127
Cimarex Energy Co. 85,065 $9,383,520
Cintas Corp. 62,865 $5,317,750
comScore, Inc. 121,181 $6,454,100
Constellation Brands, Inc. 111,043 $12,883,209
Core Laboratories NV 60,015 $6,844,111
CoStar Group, Inc. 76,712 $15,439,057
Criteo SA (A.D.R.) 147,854 $7,048,200
CVS Health Corp. 105,864 $11,103,016
Cytec Industries, Inc. 82,606 $5,000,141
Dave & Buster's Entertainment, Inc. 244,486 $8,823,500
Demandware, Inc. 58,372 $4,149,082
Diamond Foods, Inc. 15,910 $499,256
Discover Financial Services 275,374 $15,867,050
Dollar Tree, Inc. 261,229 $20,634,479
Dover Corp. 73,252 $5,140,825
Dynegy, Inc. 79,868 $2,336,139
Eagle Materials, Inc. 61,893 $4,724,293
Edwards Lifesciences Corp. 127,461 $18,154,270
Endo International Plc 225,546 $17,964,739
Endologix, Inc. 594,070 $9,113,034
F5 Networks, Inc. 69,218 $8,330,386
Facebook, Inc. 146,062 $12,527,007
Fleetmatics Group Plc 146,300 $6,851,229
Flotek Industries, Inc. 200,985 $2,518,342
Gartner, Inc. 67,963 $5,829,866
G-III Apparel Group, Ltd. 176,352 $12,406,363
Golar LNG, Ltd. 62,370 $2,918,916
Google, Inc. 9,418 $5,086,097
Google, Inc. 9,483 $4,935,996
H&R Block, Inc. 277,962 $8,241,573
Hanesbrands, Inc. 215,027 $7,164,700
Hilton Worldwide Holdings, Inc. 230,905 $6,361,433
HomeAway, Inc. 439,597 $13,680,259
Hormel Foods Corp. 109,511 $6,173,135
Hub Group, Inc. 129,160 $5,210,314
Insulet Corp. 280,771 $8,699,689
Intercontinental Exchange, Inc. 68,956 $15,419,251
Intuit, Inc. 97,704 $9,845,632
Jack in the Box, Inc. 67,115 $5,916,858
Jazz Pharmaceuticals Plc 107,656 $18,954,992
Kansas City Southern 58,370 $5,323,344
KBR, Inc. 423,137 $8,242,709
Keurig Green Mountain, Inc. 275,606 $21,119,688
Kirby Corp. 71,073 $5,448,456
Lear Corp. 218,104 $24,484,355
Level 3 Communications, Inc. 208,083 $10,959,732
Liberty Global Plc 118,966 $6,023,249
Liberty Global Plc 95,000 $5,136,650
LinkedIn Corp. 50,114 $10,355,056
Lithia Motors, Inc. 79,057 $8,946,090
Lowe's Companies, Inc. 150,376 $10,070,681
Macquarie Infrastructure Corp. 80,716 $6,669,563
ManpowerGroup, Inc. 135,787 $12,136,642
Martin Marietta Materials, Inc. 33,285 $4,710,160
Masonite International Corp. 83,865 $5,879,775
MasterCard, Inc. 85,639 $8,005,534
MEDNAX, Inc. 139,465 $10,335,751
Memorial Resource Development Corp. 689,100 $13,072,227
Methanex Corp. 144,644 $8,050,885
Mohawk Industries, Inc. 30,403 $5,803,933
Molson Coors Brewing Co. (Class B) 116,053 $8,101,660
Monster Beverage Corp 98,087 $13,145,620
Mylan NV 36,442 $2,472,954
Netflix, Inc. 15,318 $10,063,007
Neurocrine Biosciences, Inc. 131,427 $6,276,954
Norwegian Cruise Line Holdings, Ltd. 111,447 $6,245,490
Omnicare, Inc. 73,001 $6,880,344
On Assignment, Inc. 115,123 $4,522,031
Packaging Corp of America 43,580 $2,723,314
Palo Alto Networks, Inc. 35,483 $6,198,880
Panera Bread Co. 27,260 $4,764,230
Performance Sports Group, Ltd. 52,373 $942,714
Qlik Technologies, Inc. 254,428 $8,894,803
Rockwell Collins, Inc. 94,506 $8,727,629
Roper Technologies, Inc. 48,221 $8,316,194
Ross Stores, Inc. 141,868 $6,896,203
RPM International, Inc. 60,607 $2,967,925
Ryder System, Inc. 105,639 $9,229,679
Sabre Corp. 315,203 $7,501,831
Salesforce.com inc 113,331 $7,891,238
SBA Communications Corp. 119,054 $13,687,638
SEI Investments Co. 144,376 $7,078,755
SemGroup Corp. 78,991 $6,278,205
ServiceNow, Inc. 77,082 $5,727,963
Shire Plc (A.D.R.) 54,884 $13,253,937
Signature Bank/New York NY 52,338 $7,661,760
Signet Jewelers, Ltd. 59,431 $7,621,431
Skyworks Solutions, Inc. 270,972 $28,208,185
Sonic Corp. 242,016 $6,970,061
Splunk, Inc. 93,292 $6,494,989
SS&C Technologies Holdings, Inc. 94,154 $5,884,625
Synaptics, Inc. 71,433 $6,195,741
Tableau Software, Inc. 53,747 $6,197,029
TESARO, Inc. 105,221 $6,185,943
The Blackstone Group LP 174,412 $7,128,218
The Kroger Co. 217,140 $15,744,821
The Men's Wearhouse, Inc. 128,852 $8,255,548
The NASDAQ OMX Group, Inc. 339,282 $16,560,354
The Sherwin-Williams Co. 29,100 $8,003,082
The TJX Companies, Inc. 108,909 $7,206,509
Towers Watson & Co. 100,782 $12,678,376
Tractor Supply Co. 135,399 $12,177,786
Transunion Ord 308,226 $7,736,473
Twitter, Inc. 190,234 $6,890,275
Tyson Foods, Inc. 207,632 $8,851,352
Ulta Salon Cosmetics & Fragrance, Inc. 69,748 $10,772,579
United Continental Holdings, Inc. 245,427 $13,010,085
United Rentals, Inc. 45,173 $3,958,058
Ventas, Inc. 74,716 $4,639,116
Vertex Pharmaceuticals, Inc. 90,107 $11,126,412
WABCO Holdings, Inc. 129,835 $16,063,186
Wabtec Corp./DE 58,839 $5,544,987
WageWorks, Inc. 69,400 $2,807,230
WellCare Health Plans, Inc. 87,025 $7,382,331
Westlake Chemical Corp. 111,585 $7,653,615
Weyerhaeuser Co. 283,458 $8,928,927
Whirlpool Corp. 37,479 $6,485,741
Whiting Petroleum Corp. 283,505 $9,525,768
WR Grace & Co. 62,685 $6,287,306

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

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