Pioneer Select Mid Cap Growth Fund

Top 10 Portfolio Holdings as of 2/28/2014
Default: sorted by market value

Security Name Par / Shares Market Value
Actavis plc 92,456 $20,416,134
Affiliated Managers Group, Inc. 49,902 $9,384,071
Airgas, Inc. 36,814 $3,968,549
Akamai Technologies, Inc. 297,247 $18,170,709
Align Technology, Inc. 169,057 $8,846,753
Alkermes Plc 151,704 $7,383,434
Alliance Data Systems Corp. 28,767 $8,201,759
American Airlines Group, Inc. 519,959 $19,202,086
American Energy - Utica LLC, 3.5%, 3/1/21 (144A) 2,365,000 $2,338,959
Aon Plc 71,727 $6,139,831
Aspen Technology, Inc. 125,214 $5,878,797
AutoZone, Inc. 7,894 $4,250,445
Avago Technologies, Ltd. 165,333 $10,201,046
B/E Aerospace Inc 65,836 $5,546,683
BankUnited, Inc. 173,490 $5,808,445
Basic Energy Services, Inc. 218,193 $5,203,903
Blackstone Group LP 266,649 $8,892,744
Brookdale Senior Living, Inc. 182,865 $6,133,292
Bruker Corp. 272,536 $6,197,469
Cabot Oil & Gas Corp. 669,407 $23,429,245
Cadence Design Systems, Inc. 494,566 $7,581,697
CarMax, Inc. 193,492 $9,370,818
Carter's, Inc. 53,636 $4,040,400
Catamaran Corp. 351,655 $15,852,607
Charles River Laboratories International, Inc. 128,899 $7,657,890
Chart Industries, Inc. 54,506 $4,554,521
Chicago Bridge & Iron Co NV 45,104 $3,797,306
Chipotle Mexican Grill, Inc. 17,189 $9,715,395
Cimarex Energy Co. 51,008 $5,902,136
Constellation Brands, Inc. 120,849 $9,792,394
Copa Holdings SA 65,719 $8,902,296
CoStar Group, Inc. 66,539 $13,377,001
Cree, Inc. 89,469 $5,496,081
Crown Castle International Corp. 127,147 $9,650,457
Cubist Pharmaceuticals, Inc. 116,267 $9,245,552
Delek US Holdings, Inc. 142,620 $3,959,131
Delta Air Lines, Inc. 376,807 $12,513,760
Diana Shipping, Inc. 789,838 $10,283,691
Dick's Sporting Goods, Inc. 101,663 $5,456,253
Discover Financial Services 146,381 $8,399,342
Discovery Communications, Inc. 90,340 $7,527,129
Dollar General Corp. 97,527 $5,841,867
Dollar Tree, Inc. 199,551 $10,929,408
Dominion Resources, Inc./VA 34,589 $2,400,477
Domtar Corp. 72,009 $7,977,157
Dunkin' Brands Group, Inc. 71,266 $3,682,314
Eagle Materials, Inc. 105,091 $9,290,044
eBay, Inc. 128,614 $7,558,645
Edwards Lifesciences Corp. 210,892 $14,711,826
Endologix, Inc. 401,419 $5,419,157
EQT Corp. 24,647 $2,521,142
F5 Networks, Inc. 131,324 $14,752,938
Facebook, Inc. 123,170 $8,432,218
Financial Engines, Inc. 94,800 $5,357,148
Finisar Corp. 162,074 $3,841,154
Flotek Industries, Inc. 305,228 $7,768,053
Fortune Brands Home & Security, Inc. 88,181 $4,121,580
Furmanite Corp. 293,186 $3,471,322
Gartner, Inc. 73,966 $5,145,075
G-III Apparel Group, Ltd. 110,905 $7,706,788
Goodrich Petroleum Corp. 278,367 $3,791,359
Google, Inc. 10,207 $12,408,140
Green Mountain Coffee Roasters, Inc. 181,853 $19,963,822
Guidewire Software, Inc. 132,604 $7,108,900
Gulfport Energy Corp. 217,030 $14,345,683
H&R Block, Inc. 302,512 $9,571,480
Hanesbrands, Inc. 159,700 $11,702,816
Harley-Davidson, Inc. 136,316 $9,005,035
Healthcare Services Group, Inc. 113,727 $3,062,668
HomeAway, Inc. 246,442 $11,304,295
Illumina, Inc. 42,952 $7,365,838
Ingersoll-Rand Plc 132,499 $8,100,989
Jazz Pharmaceuticals Plc 78,908 $11,989,676
Kansas City Southern 48,589 $4,563,479
KapStone Paper and Packaging Corp. 211,047 $6,709,184
Kate Spade & Co. 161,853 $5,538,610
Laredo Petroleum, Inc. 111,730 $2,915,036
Las Vegas Sands Corp. 155,482 $13,254,841
Lear Corp. 237,367 $19,274,200
Lennar Corp. 114,352 $5,017,766
Liberty Global Plc 103,391 $8,948,491
LifeLock, Inc. 249,924 $4,975,987
Lincoln Electric Holdings, Inc. 105,042 $7,874,999
LinkedIn Corp. 40,432 $8,249,745
LKQ Corp. 187,715 $5,235,371
Lowe's Companies, Inc. 163,657 $8,187,760
Marathon Petroleum Corp. 135,575 $11,388,300
Martin Marietta Materials, Inc. 27,162 $3,313,221
Masimo Corp. 310,692 $7,938,181
MasterCard, Inc. 84,463 $6,564,464
Melco Crown Entertainment, Ltd. (A.D.R.) 190,606 $8,180,810
Methanex Corp. 99,593 $7,004,376
Michael Kors Holdings, Ltd. 65,261 $6,397,536
Mistras Group, Inc. 144,633 $3,187,711
Mobile Mini, Inc. 133,287 $5,999,248
Mohawk Industries, Inc. 52,429 $7,420,276
Monster Beverage Corp. 152,115 $11,256,510
Morgan Stanley 194,947 $6,004,368
National Fuel Gas Co. 39,489 $2,966,414
Natural Grocers by Vitamin Cottage, Inc. 84,443 $3,440,208
Netflix, Inc. 15,839 $7,058,334
Neurocrine Biosciences, Inc. 391,536 $6,902,780
Norwegian Cruise Line Holdings, Ltd. 300,926 $10,312,734
NPS Pharmaceuticals, Inc. 251,939 $8,812,826
Nu Skin Enterprises, Inc. 43,479 $3,729,629
Pandora Media, Inc. 133,454 $4,993,849
Penn Virginia Corp. 582,110 $8,818,967
priceline.com, Inc. 8,470 $11,424,675
PVH Corp. 33,843 $4,278,770
Qlik Technologies, Inc. 122,624 $3,740,032
Quanta Services, Inc. 122,128 $4,300,127
Rice Energy, Inc. 195,419 $4,690,056
Rock-Tenn Co. 63,472 $7,084,745
Roper Industries, Inc. 38,019 $5,156,137
Ross Stores, Inc. 136,664 $9,949,139
Safe Bulkers, Inc. 238,363 $2,440,837
Salesforce.com, Inc. 131,402 $8,195,543
Salix Pharmaceuticals, Ltd. 126,768 $13,680,803
SBA Communications Corp. 94,971 $9,038,390
SemGroup Corp. 87,042 $5,859,667
ServiceNow, Inc. 114,237 $7,774,970
Shire Plc (A.D.R.) 71,486 $11,805,913
Signature Bank/New York NY 70,913 $9,284,639
Skyworks Solutions, Inc. 255,752 $9,068,966
Splunk, Inc. 75,876 $7,037,499
SS&C Technologies Holdings, Inc. 102,469 $3,963,501
Stericycle, Inc. 51,112 $5,826,768
Stratasys, Ltd. 64,447 $8,193,147
Synaptics, Inc. 143,588 $9,338,964
Terex Corp. 149,834 $6,672,108
Tesla Motors, Inc. 4,851 $1,187,573
The Advisory Board Co. 69,393 $4,446,703
The Manitowoc Co, Inc. 272,476 $8,430,407
The NASDAQ OMX Group, Inc. 325,703 $12,503,738
The TJX Companies, Inc. 134,367 $8,258,196
Towers Watson & Co. 136,892 $14,934,917
Tractor Supply Co. 147,358 $10,397,580
United Continental Holdings, Inc. 166,369 $7,479,950
United Rentals, Inc. 111,578 $9,856,801
Vantiv, Inc. 233,473 $7,431,446
Verisk Analytics, Inc. 59,667 $3,801,683
Vertex Pharmaceuticals, Inc. 104,723 $8,467,902
VMware, Inc. 79,479 $7,633,958
WageWorks, Inc. 138,935 $8,218,005
WellCare Health Plans, Inc. 110,293 $6,818,313
Westlake Chemical Corp. 58,763 $7,834,871
WEX, Inc. 86,040 $8,330,393
Weyerhaeuser Co. 356,630 $10,524,151
Whirlpool Corp. 35,729 $5,167,485
Whole Foods Market, Inc. 133,348 $7,207,459
WR Grace & Co. 109,786 $11,125,713
WW Grainger, Inc. 22,311 $5,689,751
Xilinx, Inc. 187,149 $9,769,178

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

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