DF DENT & CO INC

DF DENT & CO INC declares $1.4B in 46 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 26.7% of its $5.3B 13F portfolio. Largest positions: Alphabet (0.01% of the company) and Amazon (0.01% of the company). Over time: $1.4B in 46 of these companies for Q2 2026, against $552.2M in 18 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $157.4M and sold $197.7M of these stocks, at the quarter's prices: a net sale of $40.3M; 5 new positions and 2 sold out.

Performance of its AI picks

The AI-stock portfolio DF DENT & CO INC declared for Q2 2026 (Form 13F), held unchanged, returned +1.3% in Q3 2026 (SMH -7.1%), ranked 1227 of 1,783 active managers. Over the last 12 months, quarter after quarter: +23.0% (SMH +87.2%), ranked 1047 of 1,359 active managers. Over three years, quarter after quarter: +115.0% (SMH +325.8%), ranked 659 of 783 active managers. Over five years, quarter after quarter: +82.1% (SMH +389.8%), ranked 515 of 535 active managers. Trades made during a quarter are not visible in 13F filings: this measures its declared picks, not the return of its funds.

Largest positions

1. Alphabet (GOOGL) — $253.0M: 715,517 shares, 0.01% of the company, 4.8% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
2. Amazon (AMZN) — $165.1M: 692,739 shares, 0.01% of the company, 3.1% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
3. ASML (ASML) — $103.1M: 51,824 shares, 0.01% of the company, 2.0% of its portfolio (trimmed this quarter); held since Q3 2022
4. Monolithic Power (MPWR) — $100.8M: 72,954 shares, 0.15% of the company, 1.9% of its portfolio (trimmed this quarter); held since Q3 2022
5. Cadence (CDNS) — $97.3M: 259,282 shares, 0.09% of the company, 1.8% of its portfolio (trimmed this quarter); held since Q3 2024
6. Microsoft (MSFT) — $97.2M: 260,499 shares, 0.00% of the company, 1.8% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
7. Broadcom (AVGO) — $64.9M: 171,833 shares, 0.00% of the company, 1.2% of its portfolio (trimmed this quarter); held since Q2 2025
8. Datadog (DDOG) — $62.3M: 239,350 shares, 0.07% of the company, 1.2% of its portfolio (new position this quarter)
9. Apple (AAPL) — $57.2M: 197,541 shares, 0.00% of the company, 1.1% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
10. TSMC (TSM) — $50.8M: 106,282 shares, 0.00% of the company, 0.96% of its portfolio (added this quarter); held since Q3 2025
11. LandBridge (LB) — $45.0M: 567,536 shares, 0.74% of the company, 0.85% of its portfolio (added this quarter); held since Q4 2025
12. Amphenol (APH) — $39.9M: 452,134 shares, 0.02% of the company, 0.76% of its portfolio (added this quarter); held since Q3 2020
13. CrowdStrike (CRWD) — $37.1M: 194,520 shares, 0.02% of the company, 0.70% of its portfolio (trimmed this quarter); held since Q3 2020
14. Onto Innovation (ONTO) — $35.5M: 93,905 shares, 0.19% of the company, 0.67% of its portfolio (added this quarter); held since Q3 2025
15. Qualcomm (QCOM) — $33.9M: 183,258 shares, 0.02% of the company, 0.64% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier

By sector

• Cloud & AI giants — $601.7M, 43% of its AI holdings, 5 companies
• Chips & compute — $269.8M, 19% of its AI holdings, 8 companies
• AI software — $237.7M, 17% of its AI holdings, 8 companies
• Equipment & test — $166.2M, 12% of its AI holdings, 6 companies
• Interconnect — $59.4M, 4% of its AI holdings, 3 companies
• Neoclouds & data centers — $58.3M, 4% of its AI holdings, 4 companies
• Power, electrical & cooling — $13.9M, 1% of its AI holdings, 11 companies
• Servers & systems — $1.1M, 0% of its AI holdings, 1 company

Biggest changes this quarter

• opened a position in Datadog (DDOG): +$62.3M at the quarter's price
• added to TSMC (TSM): +$50.3M at the quarter's price
• trimmed Alphabet (GOOGL): -$27.6M at the quarter's price
• added to Meta Platforms (META): +$27.1M at the quarter's price
• trimmed Amazon (AMZN): -$24.7M at the quarter's price
• trimmed Monolithic Power (MPWR): -$21.6M at the quarter's price
• trimmed ServiceNow (NOW): -$20.8M at the quarter's price
• trimmed ASML (ASML): -$17.2M at the quarter's price
• trimmed Microsoft (MSFT): -$12.3M at the quarter's price
• trimmed Cadence (CDNS): -$10.8M at the quarter's price

Other holders of this size

• Vanguard — $3.6T in 225 of these companies
• BlackRock — $3.1T in 226 of these companies
• State Street — $1.6T in 222 of these companies
• Fidelity (FMR) — $1.2T in 223 of these companies
• Geode Capital — $890.9B in 220 of these companies
• Capital Group — $881.7B in 132 of these companies
• JPMorgan — $717.8B in 225 of these companies
• Invesco — $683.3B in 220 of these companies

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