Stocks/Funds/CIK 1039128

HARBOR CAPITAL ADVISORS, INC.

index-like (500+ pos)long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1039128
Assets
$1.23B
-43.7% YoY
Holdings
1,211
Lifetime alpha vs market
-10.11% annual
Average hold time
1.8 yr
median 1.8 yr

Quarterly history

Cum return -1% vs S&P +52% · α -53% lifetimeAUM $1.2B · peak $2.4BFlow $-17M (-1%)2021-122022-092023-062024-032024-122025-092026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-2.89%
trims when stocks drop
when a holding falls −10%+
Middle response
-4.05%
baseline attrition
Rally response
-6.53%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
IEMGiShares Core MSCI Emergi$31M2.5%0.5 yr
AMZNAmazon.com, Inc.$23M1.9%+9.5%3.5 yr
AAPLApple Inc.$22M1.8%+14.7%4.3 yr
NVDANVIDIA Corporation$21M1.7%+60.9%4.5 yr
GOOGLAlphabet Inc.$21M1.7%4.5 yr
MSFTMicrosoft Corporation$21M1.7%-0.6%4.5 yr
METAMeta Platforms, Inc.$20M1.6%-0.4%4.5 yr
USMViShares MSCI USA Min Vol$15M1.2%0.3 yr
NFLXNetflix, Inc.$15M1.2%+3.1%3.5 yr
JPMJPMorgan Chase & Co.$13M1.1%+21.8%2.3 yr
XLPState Street Consumer St$13M1.0%0.3 yr
FLJPFranklin FTSE Japan ETF$12M1.0%0.5 yr
IEFAiShares Core MSCI EAFE E$12M1.0%0.5 yr
XLKState Street Technology $11M0.9%2.0 yr
CSCOCisco Systems, Inc.$11M0.9%+28.1%1.3 yr

Portfolio composition (YoY)

Industry mix
Asset Management11.3%+4.2pp$140M
Semiconductors5.2%+1.5pp$64M
Software - Application4.9%+1.3pp$61M
Software - Infrastructure4.1%-1.6pp$51M
Internet Content & Information3.9%+2.1pp$48M
Banks - Regional3.3%+0.0pp$41M
Drug Manufacturers - General2.5%+1.2pp$30M
Specialty Retail2.4%+1.7pp$30M
Biotechnology2.1%-0.5pp$26M
Consumer Electronics2.0%+0.8pp$25M
Country
US94.6%+2.6pp
Unknown1.7%-1.8pp
BM0.7%-0.4pp
IE0.7%+0.1pp
GB0.6%-0.4pp
HK0.6%+0.3pp
LU0.3%+0.3pp
BS0.2%+0.2pp
Top 5: 9.6% · Top 10: 16.4% · Top 25: 27.9%

Winners

TickerPrev $PnLYoY %
MOD$11M+0.02B182.4%
LAUR$18M+0.01B70.4%
NVDA$16M+0.01B60.9%
SIMO$6M+0.01B127.9%
JPM$14M+0.00B21.8%

Losers

TickerPrev $PnLYoY %
CRM$6M-0.00B-30.2%
PG$7M-0.00B-12.9%
MA$7M-0.00B-8.5%
MSFT$18M-0.00B-0.6%
META$15M-0.00B-0.4%

Top buys this quarter · 15

COST Costco Wholesale Corporationnew+$8M
CSCO Cisco Systems, Inc.+$7M
NFLX Netflix, Inc.+$7M
VZ Verizon Communications Inc.+$5M
META Meta Platforms, Inc.+$4M
KLAC KLA Corporation+$4M
MGY Magnolia Oil & Gas Corporation+$4M
PCTY Paylocity Holding Corporation+$3M
EXPO Exponent, Inc.+$3M
LFUS Littelfuse, Inc.+$3M

Top sells this quarter · 15

HD The Home Depot, Inc.exit$13M
CHEF The Chefs' Warehouse, Inc.$7M
V Visa Inc.exit$7M
AMD Advanced Micro Devices, Inc.exit$7M
KO The Coca-Cola Companyexit$5M
UCTT Ultra Clean Holdings, Inc.$5M
ECVT Ecovyst Inc.$5M
NVDA NVIDIA Corporation$4M
AEIS Advanced Energy Industries, In$4M
TXN Texas Instruments Incorporatedexit$4M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$1.23B1211+15.36%+17.59%-2.23%-0.02B
2025-12-31$1.29B1320+8.86%+17.72%-8.86%-0.00B
2025-09-30$1.29B1336+8.72%+17.52%-8.80%-1.28B
2025-06-30$2.38B1380+7.95%+14.94%-6.99%-0.03B
2025-03-31$2.19B1400-2.82%+8.30%-11.12%+0.09B
2024-12-31$2.29B1318+13.81%+24.89%-11.08%-0.02B
2024-09-30$2.30B1339+29.40%+36.04%-6.64%+0.90B
2024-06-30$1.31B724+16.10%+24.49%-8.39%+0.56B
2024-03-31$765M744+24.78%+29.62%-4.85%+0.21B
2023-12-31$515M436+26.79%+26.18%+0.61%-0.01B
2023-09-30$464M443+7.04%+21.57%-14.53%-0.02B
2023-06-30$500M661+7.98%+19.42%-11.45%+0.13B
2023-03-31$347M246-28.97%-7.82%-21.15%+0.24B
2022-12-31$101M158-3.73%+7.56%-11.29%-0.00B
2022-09-30$107M156-3.25%-4.93%+1.68%-0.02B
2022-06-30$131M160-30.15%-16.11%-14.04%-0.02B