RHUMBLINE ADVISERS

Diversified mechanical Mechanical CIK 1115418
League rank
#60
in Diversified mechanical · #1641 overall
Long book
$116.90B
Q1 2026
Positions
4151
Top-10 weight
30%
concentration
Last quarter
+14.9%
SPY +14.8%
Turnover
5%
of book per quarter

Strategy in plain words

auto-generated from filings

RHUMBLINE ADVISERS is a mechanically diversified allocator, running a $116.90B US long book across 4151 positions.

The portfolio is moderately concentrated (top 10 ≈ 30% of the book). The book barely moves quarter to quarter — a patient, low-turnover holder. Current anchor positions: NVIDIA CORP, APPLE INC, MICROSOFT CORP, AMAZON.COM INC, ALPHABET INC-CL A.

Over the last 9 quarters its long book ran on average 0.1pp per quarter behind the S&P 500, beating the index in 3 of 9 quarters. Its holdings are mechanical (indexing / client flows), so position changes carry no stock-picking signal.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
+3.2%
Q2 2024
+6.3%
Q3 2024
+2.3%
Q4 2024
-4.7%
Q1 2025
+10.7%
Q2 2025
+8.0%
Q3 2025
+2.3%
Q4 2025
-3.6%
Q1 2026
+14.9%

Sector allocation

Technology
37%
Industrials
12%
Financials
12%
Consumer discretionary
10%
Healthcare
8%
Services media
5%
Utilities
4%
Other
3%

Long book by quarter

$104.13B
Q1 2024
$106.40B
Q2 2024
$110.85B
Q3 2024
$111.79B
Q4 2024
$106.91B
Q1 2025
$116.77B
Q2 2025
$124.51B
Q3 2025
$123.69B
Q4 2025
$116.90B
Q1 2026

What does RHUMBLINE ADVISERS own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
NVDA NVIDIA CORPTechnology42.0M$7.33B6.3%-1.0%
AAPL APPLE INCTechnology25.8M$6.55B5.6%-2.7%
MSFT MICROSOFT CORPTechnology13.0M$4.81B4.1%-2.5%
AMZN AMAZON.COM INCConsumer discretionary16.6M$3.45B3.0%-1.2%
GOOGL ALPHABET INC-CL ATechnology10.1M$2.92B2.5%-2.0%
AVGO BROADCOM INCTechnology8.2M$2.54B2.2%+0.6%
GOOG ALPHABET INC-CL CTechnology8.2M$2.34B2.0%-1.5%
META META PLATFORMS INC-CLASS ATechnology3.8M$2.20B1.9%-3.5%
TSLA TESLA INCIndustrials4.8M$1.80B1.5%-1.1%
BRK/B BERKSHIRE HATHAWAY INC-CL BFinancials2.8M$1.37B1.2%-1.6%
JPM JPMORGAN CHASE & COFinancials4.6M$1.36B1.2%-2.0%
LLY ELI LILLY & COHealthcare1.4M$1.25B1.1%-2.2%
XOM EXXON MOBIL CORPEnergy6.9M$1.18B1.0%-2.4%
V VISA INC-CLASS A SHARESServices media3.2M$953.2M0.8%-1.5%
JNJ JOHNSON & JOHNSONHealthcare3.8M$936.0M0.8%-3.6%
WMT WALMART INCConsumer discretionary7.4M$923.0M0.8%-1.3%
COST COSTCO WHOLESALE CORPConsumer discretionary816.2K$813.3M0.7%-1.8%
MA MASTERCARD INC - AServices media1.5M$762.2M0.7%-1.5%
NFLX NETFLIX INCServices media7.4M$711.3M0.6%-1.7%
MU MICRON TECHNOLOGY INCTechnology1.9M$643.1M0.6%-2.4%
CVX CHEVRON CORPEnergy3.1M$641.0M0.5%-3.5%
ABBV ABBVIE INCHealthcare2.9M$630.3M0.5%-2.2%
HD HOME DEPOT INCConsumer discretionary1.8M$591.5M0.5%-1.9%
BAC BANK OF AMERICA CORPFinancials11.7M$569.7M0.5%-2.0%
PLTR PALANTIR TECHNOLOGIES INC-ATechnology3.9M$567.4M0.5%-1.3%
CAT CATERPILLAR INCIndustrials797.4K$564.9M0.5%-2.2%
AMD ADVANCED MICRO DEVICESTechnology2.8M$562.2M0.5%-1.1%
CSCO CISCO SYSTEMS INCTechnology7.2M$556.1M0.5%-1.6%
KO COCA-COLA CO/THEConsumer staples6.9M$524.1M0.4%-2.8%
PG PROCTER & GAMBLE CO/THEOther3.6M$521.6M0.4%-3.0%
LRCX LAM RESEARCH CORPIndustrials2.3M$490.8M0.4%-2.6%
GE GENERAL ELECTRICIndustrials1.7M$481.8M0.4%-1.8%
AMAT APPLIED MATERIALS INCTechnology1.4M$475.1M0.4%-2.6%
MRK MERCK & CO. INC.Healthcare3.8M$456.8M0.4%-4.5%
ORCL ORACLE CORPTechnology3.1M$451.4M0.4%-1.2%
WFC WELLS FARGO & COFinancials5.3M$425.6M0.4%-2.6%
GS GOLDMAN SACHS GROUP INCFinancials501.3K$424.1M0.4%-2.0%
RTX RTX CORPIndustrials2.2M$420.1M0.4%+1.3%
GEV GE VERNOVA INCIndustrials473.2K$413.1M0.4%-1.6%
UNH UNITEDHEALTH GROUP INCFinancials1.5M$394.6M0.3%-3.2%
LIN LINDE PLCMaterials793.5K$393.4M0.3%-1.4%
MCD MCDONALD'S CORPConsumer discretionary1.2M$384.5M0.3%-2.5%
PEP PEPSICO INCConsumer staples2.5M$383.8M0.3%-2.6%
VZ VERIZON COMMUNICATIONS INCCommunications7.6M$383.2M0.3%-2.2%
IBM INTL BUSINESS MACHINES CORPTechnology1.6M$379.3M0.3%-1.4%
PM PHILIP MORRIS INTERNATIONALConsumer staples2.3M$373.0M0.3%-2.0%
KLAC KLA CORPOther251.0K$369.6M0.3%-1.8%
MS MORGAN STANLEYFinancials2.1M$353.7M0.3%-1.6%
T AT&T INCCommunications12.2M$352.6M0.3%-2.9%
TJX TJX COMPANIES INCConsumer discretionary2.2M$344.0M0.3%-2.8%

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 12, 20264151$116.90B canonicalSEC ↗
Q4 202513F-HRFeb 13, 20264187$123.69B canonicalSEC ↗
Q3 202513F-HRNov 6, 20254172$124.51B canonicalSEC ↗
Q2 202513F-HRAug 12, 20254194$116.77B canonicalSEC ↗
Q1 202513F-HR/ARESTATEMENTMay 29, 20254182$106.91B canonicalSEC ↗
Q1 202513F-HRApr 8, 202541830$106.91B SEC ↗
Q4 202413F-HR/ARESTATEMENTMay 29, 20254223$111.79B canonicalSEC ↗
Q4 202413F-HRJan 30, 202542240$111.79B SEC ↗
Q3 202413F-HRNov 12, 20244249$110.85B canonicalSEC ↗
Q2 202413F-HRAug 1, 20244422$106.40B canonicalSEC ↗
Q1 202413F-HRMay 9, 20244304$104.13B canonicalSEC ↗