Mawer Investment Management Ltd.

Fundamental diversified ★Signal CIK 1538449
League rank
#808
in Fundamental diversified · #6702 overall
Long book
$15.45B
Q1 2026
Positions
126
Top-10 weight
40%
concentration
Last quarter
+7.0%
SPY +14.8%
Turnover
22%
of book per quarter

Strategy in plain words

auto-generated from filings

Mawer Investment Management Ltd. is a diversified fundamental manager, running a $15.45B US long book across 126 positions.

The portfolio is moderately concentrated (top 10 ≈ 40% of the book). Turnover is modest: positions are typically held for years. Current anchor positions: ALPHABET INC-CL C, MICROSOFT CORP, AMAZON.COM INC, SHELL PLC-ADR, MARSH & MCLENNAN COS.

Over the last 9 quarters its long book ran on average 3.5pp per quarter behind the S&P 500, beating the index in 1 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
-1.5%
Q2 2024
+4.8%
Q3 2024
-2.0%
Q4 2024
-0.8%
Q1 2025
+2.2%
Q2 2025
+3.3%
Q3 2025
+1.0%
Q4 2025
-5.6%
Q1 2026
+7.0%

Sector allocation

Technology
29%
Financials
24%
Services media
15%
Consumer discretionary
10%
Healthcare
8%
Industrials
5%
Utilities
4%
Other
2%

Long book by quarter

$21.56B
Q1 2024
$21.12B
Q2 2024
$21.95B
Q3 2024
$22.03B
Q4 2024
$20.71B
Q1 2025
$19.72B
Q2 2025
$19.26B
Q3 2025
$17.85B
Q4 2025
$15.45B
Q1 2026

What does Mawer Investment own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
GOOG ALPHABET INC-CL CTechnology3.3M$937.0M6.1%-11.0%
MSFT MICROSOFT CORPTechnology2.3M$857.0M5.5%-11.9%
AMZN AMAZON.COM INCConsumer discretionary3.7M$760.2M4.9%-10.3%
MRSH MARSH & MCLENNAN COSFinancials3.5M$602.8M3.9%-11.0%
V VISA INC-CLASS A SHARESServices media1.9M$585.4M3.8%-4.8%
APH AMPHENOL CORP-CL ATechnology4.0M$503.7M3.3%-21.6%
NOC NORTHROP GRUMMAN CORPTechnology683.4K$466.2M3.0%-19.2%
WAT WATERS CORPHealthcare1.4M$418.0M2.7%+8.1%
AON AON PLC-CLASS AFinancials1.3M$412.2M2.7%-13.6%
WFC WELLS FARGO & COFinancials4.7M$371.8M2.4%-4.2%
AER AERCAP HOLDINGS NVServices media2.7M$367.6M2.4%-18.1%
BRK/A BERKSHIRE HATHAWAY INC-CL AFinancials509$365.5M2.4%-13.3%
META META PLATFORMS INC-CLASS ATechnology612.8K$350.6M2.3%-11.0%
SO SOUTHERN CO/THEUtilities3.4M$330.3M2.1%+93.6%
JPM JPMORGAN CHASE & COFinancials1.1M$327.6M2.1%+9.7%
ICE INTERCONTINENTAL EXCHANGE INFinancials2.1M$327.2M2.1%-14.4%
COR CENCORA INCConsumer discretionary1.0M$323.9M2.1%+66.8%
CME CME GROUP INCFinancials1.0M$304.6M2.0%-9.6%
BKNG BOOKING HOLDINGS INCIndustrials56.7K$238.7M1.5%-49.5%
FCN FTI CONSULTING INCServices media1.3M$231.7M1.5%-43.1%
MA MASTERCARD INC - AServices media452.2K$226.0M1.5%-2.4%
MEDP MEDPACE HOLDINGS INCHealthcare446.1K$214.2M1.4%+9.5%
SII SPROTT INCFinancials1.4M$193.1M1.3%-10.8%
OSIS OSI SYSTEMS INCTechnology662.6K$175.9M1.1%-17.5%
AEP AMERICAN ELECTRIC POWERUtilities1.3M$174.9M1.1%+36.6%
TSEM TOWER SEMICONDUCTOR LTDTechnology965.0K$169.3M1.1%New
NVDA NVIDIA CORPTechnology951.5K$165.9M1.1%+166.6%
SPGI S&P GLOBAL INCServices media383.1K$163.0M1.1%+85.9%
UBER UBER TECHNOLOGIES INCServices media2.2M$159.2M1.0%-11.6%
FERG FERGUSON ENTERPRISES INCConsumer discretionary672.0K$156.8M1.0%-20.7%
MLM MARTIN MARIETTA MATERIALSMaterials255.7K$150.5M1.0%-3.5%
BWXT BWX TECHNOLOGIES INCIndustrials734.2K$150.1M1.0%-5.0%
CPAY CORPAY INCServices media513.5K$149.4M1.0%-18.5%
VZ VERIZON COMMUNICATIONS INCCommunications2.7M$137.1M0.9%-8.5%
ABT ABBOTT LABORATORIESHealthcare1.3M$128.7M0.8%+0.7%
CDW CDW CORP/DEConsumer discretionary1.1M$127.3M0.8%-41.2%
AJG ARTHUR J GALLAGHER & COFinancials581.3K$125.9M0.8%-5.2%
PG PROCTER & GAMBLE CO/THEOther851.2K$123.0M0.8%-5.1%
CACI CACI INTERNATIONAL INC -CL ATechnology224.2K$121.9M0.8%-9.0%
NU NU HOLDINGS LTD/CAYMAN ISL-AFinancials7.7M$110.7M0.7%+68.0%
ABNB AIRBNB INC-CLASS AServices media855.7K$108.1M0.7%+28.1%
ZTS ZOETIS INCHealthcare753.3K$89.0M0.6%+112.5%
JNJ JOHNSON & JOHNSONHealthcare362.1K$88.5M0.6%-12.9%
ITT ITT INCIndustrials454.2K$86.5M0.6%+7.4%
TXN TEXAS INSTRUMENTS INCTechnology437.6K$85.0M0.6%-4.2%
ATR APTARGROUP INCOther657.3K$82.8M0.5%-68.1%
ESQ ESQUIRE FINANCIAL HOLDINGS IFinancials725.2K$78.0M0.5%-9.4%
MCK MCKESSON CORPConsumer discretionary85.7K$74.1M0.5%New
TW TRADEWEB MARKETS INC-CLASS AFinancials626.6K$73.7M0.5%+18.0%
AAON AAON INCIndustrials848.6K$70.2M0.5%+10.8%

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 6, 2026126$15.45B canonicalSEC ↗
Q4 202513F-HRFeb 10, 2026125$17.85B canonicalSEC ↗
Q3 202513F-HRNov 4, 2025141$19.26B canonicalSEC ↗
Q2 202513F-HRAug 7, 2025138$19.72B canonicalSEC ↗
Q1 202513F-HRMay 7, 2025132$20.71B canonicalSEC ↗
Q4 202413F-HRFeb 12, 2025127$22.03B canonicalSEC ↗
Q3 202413F-HRNov 7, 2024128$21.95B canonicalSEC ↗
Q2 202413F-HRAug 7, 2024130$21.12B canonicalSEC ↗
Q1 202413F-HRMay 6, 2024130$21.56B canonicalSEC ↗