Stocks/Funds/CIK 350894

SEI INVESTMENTS CO

index-like (500+ pos)long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 350894
Assets
$108.06B
+39.6% YoY
Holdings
3,150
Lifetime alpha vs market
-1.46% annual
Average hold time
6.1 yr
median 6.5 yr

Quarterly history

Cum return +220% vs S&P +272% · α -52% lifetimeAUM $108.1B · peak $108.1BFlow $10.8B (+11%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-4.05%
trims when stocks drop
when a holding falls −10%+
Middle response
-1.17%
baseline attrition
Rally response
+3.39%
adds into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
NVDANVIDIA Corporation$3.78B3.5%+60.9%10.5 yr
AAPLApple Inc.$2.86B2.6%+14.7%10.5 yr
MSFTMicrosoft Corporation$2.59B2.4%-0.6%10.5 yr
AMZNAmazon.com, Inc.$2.19B2.0%+9.5%10.5 yr
GOOGAlphabet Inc.$1.68B1.6%+84.3%10.5 yr
VEAVanguard FTSE Developed $1.58B1.5%10.5 yr
AVGOBroadcom Inc.$1.57B1.5%+86.0%8.0 yr
SCHGSchwab U.S. Large-Cap Gr$1.39B1.3%9.3 yr
BNDVanguard Total Bond Mark$1.37B1.3%10.5 yr
SCHVSchwab U.S. Large-Cap Va$1.37B1.3%9.8 yr
GOOGLAlphabet Inc.$1.20B1.1%10.5 yr
METAMeta Platforms, Inc.$1.13B1.0%-0.4%10.5 yr
IDEViShares Core MSCI Intern$1.04B1.0%3.5 yr
TSMTaiwan Semiconductor Man$876M0.8%+105.6%10.5 yr
SCHXSchwab U.S. Large-Cap ET$834M0.8%9.3 yr

Portfolio composition (YoY)

Industry mix
Asset Management16.7%-1.2pp$18.05B
Semiconductors9.1%+3.5pp$9.88B
Internet Content & Information4.3%+0.8pp$4.70B
Software - Infrastructure4.0%-1.0pp$4.36B
Specialty Retail3.2%-0.4pp$3.51B
Asset Management - Bonds3.2%+0.0pp$3.47B
Consumer Electronics2.7%+0.4pp$2.96B
Aerospace & Defense2.5%+0.7pp$2.73B
Drug Manufacturers - General2.4%+0.4pp$2.63B
Software - Application2.3%-1.7pp$2.44B
Country
US90.0%-0.2pp
GB1.3%+0.3pp
IE1.2%-0.1pp
Unknown1.1%+0.3pp
TW0.8%+0.3pp
CA0.7%-0.1pp
NL0.6%+0.2pp
SG0.5%-0.1pp
Top 5: 12.1% · Top 10: 18.9% · Top 25: 29.6%

Winners

TickerPrev $PnLYoY %
NVDA$1.73B+1.05B60.9%
AVGO$568M+0.49B86.0%
TSM$413M+0.43B105.6%
GOOG$460M+0.39B84.3%
AAPL$1.69B+0.25B14.7%

Losers

TickerPrev $PnLYoY %
V$634M-0.08B-13.1%
MA$516M-0.04B-8.5%
MSFT$2.20B-0.01B-0.6%
META$1.01B-0.00B-0.4%

Top buys this quarter · 15

AAPL Apple Inc.+$461M
NVDA NVIDIA Corporation+$427M
GOOG Alphabet Inc.+$380M
AVGO Broadcom Inc.+$298M
ASML ASML Holding N.V.+$262M
AMZN Amazon.com, Inc.+$2.19B
META Meta Platforms, Inc.+$1.13B
PLTR Palantir Technologies Inc.+$146M
AZN AstraZeneca PLCnew+$135M
ELAN Elanco Animal Health Incorpora+$119M

Top sells this quarter · 15

ORCL Oracle Corporation$167M
APH Amphenol Corporation$143M
NOW ServiceNow, Inc.$105M
VRTX Vertex Pharmaceuticals Incorpo$103M
SYK Stryker Corporation$94M
CDNS Cadence Design Systems, Inc.$79M
BSX Boston Scientific Corporation$74M
GEV GE Vernova Inc.$340M
DHR Danaher Corporation$65M
CTAS Cintas Corporation$59M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$108.06B3150+14.13%+17.59%-3.46%+10.83B
2025-12-31$101.02B3033+13.41%+17.72%-4.31%+7.30B
2025-09-30$92.79B2735+12.93%+17.52%-4.58%+1.40B
2025-06-30$86.16B2704+13.61%+14.94%-1.33%+0.46B
2025-03-31$77.43B2763+2.29%+8.30%-6.01%+3.28B
2024-12-31$77.54B2639+14.99%+24.89%-9.89%+0.42B
2024-09-30$76.68B2590+29.21%+36.04%-6.82%+1.44B
2024-06-30$70.51B2573+16.18%+24.49%-8.31%+2.55B
2024-03-31$68.19B2526+23.68%+29.62%-5.95%+1.30B
2023-12-31$62.22B2518+22.62%+26.18%-3.56%-0.59B
2023-09-30$55.58B2525+16.24%+21.57%-5.33%+0.65B
2023-06-30$57.25B2543+15.29%+19.42%-4.13%+0.21B
2023-03-31$53.76B2549-9.33%-7.82%-1.51%+5.88B
2022-12-31$44.93B2375-18.86%-18.17%-0.68%-3.03B
2022-09-30$44.76B2503-15.88%-15.51%-0.38%+0.76B
2022-06-30$46.23B2497-11.11%-10.62%-0.49%+4.78B