Pioneer Select Mid Cap Growth Fund

Top 10 Portfolio Holdings as of 2/27/2015
Default: sorted by market value

Security Name Par / Shares Market Value
Acuity Brands, Inc. 32,875 $5,210,030
Advance Auto Parts, Inc. 106,869 $16,557,214
Affiliated Managers Group, Inc. 63,971 $13,844,604
Agrium, Inc. 23,547 $2,720,385
Akamai Technologies, Inc. 277,448 $19,285,410
Align Technology, Inc. 269,134 $15,434,835
Alkermes Plc 221,039 $15,527,990
Alliance Data Systems Corp. 15,981 $4,450,868
American Airlines Group, Inc. 470,303 $22,527,514
American Energy - Utica LLC, 3.5%, 3/1/21 (144A) (PIK) 3,716,000 $1,746,520
ANSYS, Inc. 70,966 $6,100,947
Autodesk, Inc. 151,251 $9,716,364
Avago Technologies, Ltd. 151,917 $19,387,648
Avery Dennison Corp. 104,197 $5,579,749
B/E Aerospace Inc 168,226 $10,689,080
BankUnited, Inc. 106,814 $3,461,842
Berry Plastics Group, Inc. 183,158 $6,284,151
Boardwalk Pipeline Partners LP 284,664 $4,668,490
Bonanza Creek Energy, Inc. 108,621 $2,927,336
BorgWarner, Inc. 43,242 $2,657,653
Broadcom Corp. 84,295 $3,812,663
Brookdale Senior Living, Inc. 176,535 $6,621,828
Cabot Oil & Gas Corp. 379,413 $11,002,977
Cadence Design Systems, Inc. 314,813 $5,778,393
Cameron International Corp. 52,968 $2,493,733
Cardinal Health, Inc. 171,995 $15,133,840
Carlisle Companies, Inc. 81,866 $7,619,269
Catamaran Corp. 421,738 $21,065,813
Charles River Laboratories International, Inc. 201,866 $15,477,066
Chipotle Mexican Grill, Inc. 11,168 $7,426,385
Cimarex Energy Co. 65,316 $7,163,859
Cintas Corp. 62,865 $5,247,970
comScore, Inc. 121,181 $6,251,728
Constellation Brands, Inc. 111,043 $12,738,853
Continental Resources, Inc./OK 70,094 $3,118,482
CoStar Group, Inc. 76,712 $15,277,962
Criteo Adr Representing Sa 118,321 $5,367,041
CVS Health Corp. 105,864 $10,996,094
Dave And Busters Entertainment Inc 217,109 $6,773,801
Devon Energy Corp. 50,187 $3,091,017
Diamond Foods, Inc. 15,910 $428,775
Discover Financial Services 273,665 $16,688,092
Dollar Tree, Inc. 261,229 $20,814,727
Dynegy, Inc. 27,704 $772,110
Eagle Materials, Inc. 61,893 $4,858,601
Edwards Lifesciences Corp. 101,568 $13,510,575
Endo International Plc 195,073 $16,698,249
Endologix, Inc. 599,741 $9,457,916
F5 Networks, Inc. 96,751 $11,427,744
Facebook, Inc. 146,062 $11,534,516
Five Below, Inc. 93,778 $2,976,045
Flotek Industries, Inc. 200,985 $3,432,824
Gartner, Inc. 67,963 $5,648,405
G-III Apparel Group, Ltd. 88,176 $9,278,760
Google, Inc. 9,458 $5,281,347
Google, Inc. 9,418 $5,298,849
H&R Block, Inc. 277,962 $9,492,402
Hanesbrands, Inc. 83,802 $10,688,107
HD Supply Holdings, Inc. 112,203 $3,310,550
Hertz Global Holdings, Inc. 195,781 $4,516,668
Hilton Worldwide Holdings, Inc. 230,905 $6,527,684
HomeAway, Inc. 439,597 $13,625,309
Hormel Foods Corp. 109,511 $6,407,489
Hub Group, Inc. 146,413 $5,910,693
Insulet Corp. 244,133 $7,746,340
Intercontinental Exchange, Inc. 50,649 $11,920,749
Intuit, Inc. 97,704 $9,538,842
ITC Holdings Corp. 31,725 $1,228,709
Jack in the Box, Inc. 111,908 $10,820,385
Jazz Pharmaceuticals Plc 95,080 $16,172,157
Kansas City Southern 69,065 $8,000,490
Keurig Green Mountain, Inc. 193,737 $24,716,966
Lear Corp. 218,104 $23,755,888
Level 3 Communications, Inc. 208,083 $11,207,350
Liberty Global Plc 95,000 $5,135,700
Liberty Global Plc 118,966 $6,206,456
LinkedIn Corp. 44,161 $11,799,819
Lithia Motors, Inc. 79,057 $7,467,724
Lorillard, Inc. 81,418 $5,570,620
Lowe's Companies, Inc. 150,376 $11,141,358
Macquarie Infrastructure Co LLC 88,357 $6,945,744
ManpowerGroup, Inc. 112,814 $9,077,014
Martin Marietta Materials, Inc. 33,285 $4,737,454
MasterCard, Inc. 77,609 $6,994,899
Mead Johnson Nutrition Co. 41,676 $4,365,978
Memorial Resource Development Corp. 652,918 $13,391,348
Michael Kors Holdings, Ltd. 66,636 $4,491,933
Mobile Mini, Inc. 141,577 $5,874,030
Mohawk Industries, Inc. 30,403 $5,604,793
Molson Coors Brewing Co. (Class B) 116,053 $8,807,262
Monster Beverage Corp. 98,087 $13,842,037
MRC Global, Inc. 356,538 $4,588,644
National Fuel Gas Co. 8,213 $528,999
Netflix, Inc. 21,961 $10,429,499
Neurocrine Biosciences, Inc. 186,898 $7,298,367
Norwegian Cruise Line Holdings, Ltd. 80,418 $3,966,216
Old Dominion Freight Line, Inc. 73,469 $5,739,398
Omnicare, Inc. 160,009 $12,279,091
Packaging Corp of America 43,580 $3,611,039
Palo Alto Networks, Inc. 35,483 $5,046,392
Panera Bread Co. 17,723 $2,861,024
Performance Sports Group, Ltd. 200,474 $3,885,186
Qlik Technologies, Inc. 254,428 $8,253,644
Regal-Beloit Corp. 41,437 $3,229,600
Rice Energy, Inc. 138,009 $2,702,216
Roper Industries, Inc. 48,221 $8,080,393
Ross Stores, Inc. 70,934 $7,505,527
RPM International, Inc. 85,750 $4,334,663
Ryder System, Inc. 101,298 $9,520,999
Sabre Corp 235,848 $5,132,052
salesforce.com inc 113,331 $7,862,905
Salix Pharmaceuticals, Ltd. 41,136 $6,466,579
SBA Communications Corp. 119,054 $14,847,224
SemGroup Corp. 78,991 $6,106,794
ServiceNow, Inc. 68,465 $5,221,141
Shire Plc (A.D.R.) 73,227 $17,714,344
Signature Bank/New York NY 54,226 $6,688,777
Signet Jewelers, Ltd. 59,431 $7,124,588
Skyworks Solutions, Inc. 297,512 $26,106,678
Sonic Corp. 242,016 $7,693,689
Southwest Airlines Co. 68,316 $2,953,984
Splunk, Inc. 67,960 $4,570,310
SS&C Technologies Holdings, Inc. 94,154 $5,713,265
Tableau Software, Inc. 53,747 $5,052,755
TESARO, Inc. 150,873 $8,046,057
Tesoro Corp. 26,726 $2,454,516
The Blackstone Group LP 198,312 $7,428,768
The Kroger Co. 217,140 $15,449,511
The Manitowoc Co, Inc. 253,197 $5,603,250
The NASDAQ OMX Group, Inc. 345,206 $17,315,533
The Sherwin-Williams Co. 26,771 $7,635,089
The TJX Companies, Inc. 108,909 $7,475,514
Towers Watson & Co. 115,250 $15,155,375
Tractor Supply Co. 135,399 $11,931,360
TripAdvisor, Inc. 112,849 $10,071,773
Twitter, Inc. 190,234 $9,146,451
Tyson Foods, Inc. 207,632 $8,577,278
Ulta Salon Cosmetics & Fragrance, Inc. 37,317 $5,252,741
United Continental Holdings, Inc. 234,136 $15,260,984
United Rentals, Inc. 73,514 $6,841,213
UTi Worldwide, Inc. 254,566 $3,329,723
Vertex Pharmaceuticals, Inc. 94,994 $11,345,133
WABCO Holdings, Inc. 98,350 $11,490,231
Wabtec Corp./DE 58,839 $5,583,233
WageWorks, Inc. 106,210 $6,101,765
WellCare Health Plans, Inc. 84,382 $7,662,729
Western Digital Corp. 65,870 $7,046,773
Westlake Chemical Corp. 120,833 $8,066,811
Weyerhaeuser Co. 458,033 $16,081,539
Whirlpool Corp. 37,479 $7,943,674
Whiting Petroleum Corp. 85,632 $2,896,931
WR Grace & Co. 62,685 $6,215,218

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

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