DF DENT & CO INC

CIK 0000934999 · Q1 2026

13F Equity AUM

$5.2B

-24.9% QoQ

Positions

262

-1 QoQ

AUM Rank

#985

Top 8%

Skill Alpha (FF)

-1.9%/yr^ns

No Clear Edge

Rank #5,016 · Top 61%

vs S&P -3.3%/yr (unadj.)

Quarters Tracked

~13 years

Portfolio Concentration

Top 5: 16.9%Top 10: 30.1%Top 20: 49.4%

GOOG4.2%

V3.6%

AMZN3.2%

HEI/A3.1%

VMC2.8%

MA2.8%

T7D2.7%

WCN2.7%

ECL2.6%

DUT2.5%

Others (252)69.9%

HHI (Herfindahl-Hirschman Index) measures portfolio concentration. Low (<1500) = diversified, Moderate (1500-2500), High (>2500) = concentrated bets.

Sector Allocation

Technology24.4%

Industrials14.5%

Financial Services14.4%

Healthcare13.4%

Basic Materials8.4%

Consumer Discretionary8.3%

Consumer Cyclical5.4%

Communication Services5.4%

Other5.7%

Portfolio weight by GICS sector based on latest 13F filing. Sectors below 2% are grouped as “Other.”

Position Sizing

Positions: 262Median: 0.04%Avg: 0.38%

0–0.5%

207(18.7%)

0.5–1%

24(18.0%)

1–3%

27(49.3%)

3–5%

4(14.1%)

5%+

0(0.0%)

Count of positions per weight bucket — (%) = combined portfolio weight

Loading summary cards...

Portfolio Overlap

Shared: 148Unique: 114vs 20 funds

2%Low

262

Fund positions

7,299

Consensus CUSIPs

Jaccard similarity of this fund’s portfolio vs the consensus of top 20 funds by AUM. Low (<15%) = contrarian, Moderate (15-40%), High (>40%) = follows the crowd.

Most Similar Funds

Top 9 benchmark funds with highest portfolio overlap (Jaccard similarity)

MORGAN STANLEY

2.8%

BANK OF AMERICA CORP /DE/

3.1%

3.6%

2.9%

4.7%

3.7%

VANGUARD CAPITAL MANAGEMENT LLC

3.7%

GEODE CAPITAL MANAGEMENT, LLC

3.6%

VANGUARD PORTFOLIO MANAGEMENT LLC

4.3%

Jaccard similarity per fund: shared CUSIPs / (fund A + fund B − shared). Higher values indicate more similar portfolios.

Loading overlap analysis...

Position Changes This Quarter

New18Increased41Decreased150Exited20

New Positions

SAIA0.4%

+65K

VSEC0.3%

+77K

PDFS0.2%

+353K

WRBY0.2%

+528K

WING0.1%

+23K

KLAC0.0%

+606

WSM0.0%

+6K

BHP0.0%

+18K

WSO/B0.0%

+1K

GSCE0.0%

+506

Increased

PERIMETER SOLUTIONS …1.8%

+1.4M(+55%)

AVGO1.2%

+194K(+12650%)

APH0.5%

+184K(+627%)

GWRE1.8%

+165K(+37%)

NFLX1.0%

+161K(+44%)

LB0.7%

+59K(+13%)

MSI1.1%

+37K(+41%)

SYK0.2%

+29K(+537%)

BMI0.4%

+29K(+24%)

UTZ0.2%

+26K(+2%)

Decreased

VLTO0.9%

-615,471(-54%)

TECH2.0%

-549,168(-21%)

CSGP1.2%

-402,473(-20%)

PLOW0.2%

-292,911(-54%)

PCOR0.9%

-285,647(-25%)

GSHD0.6%

-261,045(-25%)

FAST2.4%

-231,996(-8%)

HEI/A3.1%

-211,057(-21%)

CBRE1.7%

-203,174(-24%)

WST0.6%

-198,985(-62%)

Exited

3M4

-142,626

SPSC

-202,771

SERVICETITAN INC CL …

-89,575

-37,883

-28,433

-6,534

-1,998

-8,436

-9,750

INVESCO S&P 500 …

-4,872

Quarter-over-quarter changes compared to prior 13F filing. New = first appearance; Exited = no longer held.

Loading position changes...

Holdings

Loading holdings...