The investment trusts that could have made you an ISA millionaire

There are 50 investment trusts that could have helped investors build a million-pound portfolio over 25 years – are you invested in one?

pile of pound coins
(Image credit: Getty Images/BrianAJackson)

Maximising your annual ISA allowance can be a great way to grow your wealth and many of the top performing investment trusts will have turned committed investors into millionaires within 25 years.

Investors will be looking for the best places to invest their ISA money as the end of the tax year approaches and the ultimate financial dream for many is to reach ISA millionaire status.

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The 50 “ISA millionaire” investment trusts

Rank

Investment trust

AIC sector

% share price total return, 06/04/1999 to 31/01/2025

Total ISA investment value at 31/01/2025

1

Allianz Technology Trust

Technology & Technology Innovation

2,669

£2,936,182

2

HgCapital Trust

Private Equity

4,565

£2,789,473

3

Polar Capital Technology

Technology & Technology Innovation

2,236

£2,696,343

4

Scottish Mortgage Investment Trust

Global

1,967

£2,335,775

5

JPMorgan American

North America

1,214

£1,902,265

6

abrdn Asia Focus

Asia Pacific Smaller Companies

4,459

£1,792,184

7

Scottish Oriental Smaller Companies

Asia Pacific Smaller Companies

4,535

£1,752,157

8

JPMorgan Global Growth & Income

Global Equity Income

1,153

£1,576,124

9

Pacific Horizon Investment Trust

Asia Pacific

2,564

£1,446,060

10

JPMorgan US Smaller Companies

North American Smaller Companies

1,608

£1,413,195

11

International Biotechnology

Biotechnology & Healthcare

2,139

£1,398,167

12

Worldwide Healthcare Trust

Biotechnology & Healthcare

2,201

£1,333,068

13

Fidelity European Trust

Europe

1,900

£1,322,452

14

Herald Investment Trust

Global Smaller Companies

1,035

£1,302,252

15

Montanaro European Smaller Companies

European Smaller Companies

1,121

£1,302,101

16

Mid Wynd International

Global

1,336

£1,301,629

17

The European Smaller Companies Trust

European Smaller Companies

1,051

£1,295,133

18

JPMorgan UK Small Cap Growth & Income

UK Smaller Companies

1,430

£1,278,186

19

JPMorgan European Discovery

European Smaller Companies

1,929

£1,272,189

20

F&C Investment Trust

Global

867

£1,271,372

21

Canadian General Investments

North America

1,559

£1,270,532

22

BlackRock Throgmorton Trust

UK Smaller Companies

1,261

£1,243,218

23

BlackRock Smaller Companies

UK Smaller Companies

1,201

£1,237,287

24

JPMorgan Indian

India/Indian Subcontinent

1,990

£1,220,562

25

ICG Enterprise Trust

Private Equity

665

£1,220,536

26

Alliance Witan

Global

697

£1,208,458

27

Law Debenture Corporation

UK Equity Income

881

£1,207,077

28

Rights & Issues Investment Trust

UK Smaller Companies

1,655

£1,200,227

29

Fidelity Special Values

UK All Companies

1,919

£1,198,034

30

Invesco Asia Dragon*

Asia Pacific Equity Income

1,133

£1,196,213

31

Brunner Investment Trust

Global

665

£1,195,367

32

AVI Global Trust

Global

1,639

£1,183,941

33

Monks Investment Trust

Global

907

£1,165,093

34

Biotech Growth Trust

Biotechnology & Healthcare

1,281

£1,158,772

35

Schroder Asian Total Return

Asia Pacific

1,231

£1,147,541

36

Henderson European Trust

Europe

846

£1,146,372

37

The Global Smaller Companies Trust

Global Smaller Companies

1,197

£1,139,490

38

Schroder AsiaPacific Fund

Asia Pacific

1,441

£1,136,585

39

abrdn UK Smaller Companies Growth

UK Smaller Companies

651

£1,129,455

40

Fidelity Asian Values

Asia Pacific Smaller Companies

851

£1,128,271

41

Finsbury Growth & Income Trust

UK Equity Income

857

£1,120,297

42

Bankers Investment Trust

Global

855

£1,103,182

43

Pantheon International

Private Equity

1,049

£1,076,230

44

Mercantile Investment Trust

UK All Companies

1,404

£1,076,067

45

JPMorgan Emerging Markets

Global Emerging Markets

1,414

£1,060,871

46

BlackRock World Mining Trust

Commodities & Natural Resources

1,805

£1,030,713

47

Martin Currie Global Portfolio

Global

726

£1,023,417

48

JPMorgan European Growth & Income

Europe

687

£1,016,396

49

Caledonia Investments

Flexible Investment

1,023

£1,010,065

50

Pacific Assets Trust

Asia Pacific

884

£1,005,609

Marc Shoffman
Contributing editor

Marc Shoffman is an award-winning freelance journalist specialising in business, personal finance and property. His work has appeared in print and online publications ranging from FT Business to The Times, Mail on Sunday and the i newspaper. He also co-presents the In For A Penny financial planning podcast.