
The average three-year return on the list is 19%, compared to 11% for the S&P 500. The average one-year gain was 16.4%, compared to 11.6% for the S&P benchmark. Not surprisingly, there wasn’t a lot of diversification among the top funds as technology dominated the gains in recent years. As always, we included expense ratios for each fund, which ranged from about a third of percentage point to 1.5%. The average was 76 basis points.
Scroll through to see the top funds in the past three years. All data from Morningstar.

20. Janus Henderson Global Technology D (JNGTX)
3-Yr. Returns: 17.34%
Expense Ratio: 0.88%
Total Assets (millions): $1,933

19. iShares US Aerospace & Defense ETF (ITA)
3-Yr. Returns: 17.49%
Expense Ratio: 0.44%
Total Assets (millions): $3,478

18. Fidelity Select Medical Equip & Systems (FSMEX)
3-Yr. Returns: 17.98%
Expense Ratio: 0.76%
Total Assets (millions): $4,052

17. iShares US Medical Devices ETF (IHI)
3-Yr. Returns: 18.12%
Expense Ratio: 0.44%
Total Assets (millions): $1,629

16. First Trust NASDAQ-100-Tech Sector ETF (QTEC)
3-Yr. Returns: 18.42%
Expense Ratio: 0.60%
Total Assets (millions): $2,040

15. Fidelity Select Technology (FSPTX)
3-Yr. Returns: 18.51%
Expense Ratio: 0.76%
Total Assets (millions): $5,415

14. Virtus KAR Small-Cap Growth (PSGAX)
3-Yr. Returns: 18.60%
Expense Ratio: 1.50%
Total Assets (millions): $1,131

13. Oppenheimer Global Opportunities (OGIYX)
3-Yr. Returns: 18.89%
Expense Ratio: 0.94%
Total Assets (millions): $5,612

12. iShares North American Tech-Software ETF (IGV)
3-Yr. Returns: 19.03%
Expense Ratio: 0.48%
Total Assets (millions): $1,105

11. First Trust Dow Jones Internet ETF (FDN)
3-Yr. Returns: 19.07%
Expense Ratio: 0.54%
Total Assets (millions): $4,605

10. SPDR S&P Biotech ETF (XBI)
3-Yr. Returns: 19.08%
Expense Ratio: 0.35%
Total Assets (millions): $3,913

9. Columbia Global Technology Growth (CMTFX)
3-Yr. Returns: 19.54%
Expense Ratio: 1.11%
Total Assets (millions): $785

8. PowerShares S&P SmallCap Info Tech ETF (PSCT)
3-Yr. Returns: 19.92%
Expense Ratio: 0.29%
Total Assets (millions): $547

7. Columbia Seligman Comms & Info R4 (SCIOX)
3-Yr. Returns: 20.00%
Expense Ratio: 1.03%
Total Assets (millions): $5,535

6. Fidelity Select Semiconductors (FSELX)
3-Yr. Returns: 20.40%
Expense Ratio: 0.75%
Total Assets (millions): $3,053

5. Columbia Seligman Global Technology (CSGZX)
3-Yr. Returns: 20.61%
Expense Ratio: 1.15%
Total Assets (millions): $1,060

4. RMB Mendon Financial Services (RMBKX)
3-Yr. Returns: 20.66%
Expense Ratio: 1.42%
Total Assets (millions): $575

3. VanEck Vectors Semiconductor ETF (SMH)
3-Yr. Returns: 22.37%
Expense Ratio: 0.35%
Total Assets (millions): $762

2. iShares PHLX Semiconductor ETF (SOXX)
3-Yr. Returns: 22.64%
Expense Ratio: 0.48%
Total Assets (millions): $1,081

1. T. Rowe Price Global Technology( PRGTX)
3-Yr. Returns: 23.39%
Expense Ratio: 0.90%
Total Assets (millions): $4,966