Funds · 13F filer · Boston, MA

Flagship Harbor Advisors, LLC

$2.6B in 752 U.S. stocks and ETFs at the end of June 30, 2026, as reported to the SEC.1

1y return+16.4%S&P 500 +20.9%
3y return+48.3%S&P 500 +68.5%
5y return+34.8%S&P 500 +74.5%

These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.

$100 invested in its stock picks

Since December 31, 2016: $229 against $334 in the S&P 500.2

Flagship Harbor Advisors, LLCS&P 500 (SPY)
$100$33420162026

Top holdings

At the end of June 30, 2026. Change is in shares since the quarter before.2

StockValueShare of portfolioChange
SPYGSpdr Series Trust$134.2M5.1%−12.9%
SPYVSpdr Series Trust$81.3M3.1%+2.7%
NVDANvidia Corporation$56.2M2.2%
SGOVIshares Tr$56.0M2.1%−31.8%
AAPLApple Inc$56.0M2.1%+1.6%
SPYState Str Spdr S&p 500 Etf T$53.7M2.1%+3.8%
SPYMSpdr Series Trust$52.6M2.0%+4.7%
AGGIshares Tr$52.1M2.0%+39.9%
VTIVanguard Index Fds$48.6M1.9%
IUSVIshares Tr$47.3M1.8%+5.3%
JPSTJ P Morgan Exchange Traded F$42.8M1.6%+32.1%
AMZNAmazon Com Inc$37.0M1.4%
USFRWisdomtree Tr$32.5M1.2%+270.7%
CLSETrust For Professional Manag$28.2M1.1%+8.2%
DIVIFranklin Templeton Etf Tr$25.5M1.0%+5.0%
IVVIshares Tr$23.9M0.9%+17.3%
MSFTMicrosoft Corp$23.7M0.9%
GOOGAlphabet Inc$21.9M0.8%
SPSMSpdr Series Trust$21.7M0.8%+5.0%
VIGVanguard Specialized Funds$20.9M0.8%+1.1%
CGBLCapital Group Core Balanced$20.8M0.8%+6.1%
BUFRFirst Tr Exchng Traded Fd Vi$20.8M0.8%+2.8%
VOOVanguard Index Fds$20.0M0.8%
SPEMSpdr Index Shs Fds$19.6M0.7%
GOOGLAlphabet Inc$19.4M0.7%

Best picks still held

How each current holding has done since the quarter it first appeared in its filings (up to six years back).

StockHeld sinceReturn sinceNow worth
NVDANvidia CorporationJune 30, 2020+2006.7%$56.2M
AVGOBroadcom IncJune 30, 2020+1096.9%$18.2M
GOOGLAlphabet IncJune 30, 2020+404.0%$19.4M
GOOGAlphabet IncJune 30, 2020+399.9%$21.9M
JPMJpmorgan Chase & CoJune 30, 2020+248.0%$16.2M
AAPLApple IncJune 30, 2020+217.3%$56.0M
QQQInvesco Qqq TrJune 30, 2020+197.4%$13.9M
BRK/BBerkshire Hathaway Inc DelJune 30, 2020+180.3%$13.7M
VUGVanguard Index FdsJune 30, 2020+155.7%$14.1M
SPYMSpdr Series TrustJune 30, 2020+142.4%$52.6M

Sold off last quarter

  • Honeywell Intl IncCUSIP 438516106 was $4.7M
  • BABAAlibaba Group Hldg Ltd was $2.3M
  • OILKProshares Tr was $1.6M
  • IQLTIshares Tr was $1.2M
  • USOUnited Sts Oil Fd LP was $479K
  • ZSZscaler Inc was $475K
  • TTDThe Trade Desk Inc was $440K
  • IRMIron Mtn Inc Del was $407K
  • HUBSHubspot Inc was $403K
  • FDXFedex Corp was $289K

Quarter by quarter

QuarterIts picksS&P 500
June 30, 2026+10.1%+14.8%
March 31, 2026−2.0%−4.6%
December 31, 2025+1.5%+2.4%
September 30, 2025+6.3%+7.8%
June 30, 2025+7.5%+10.5%
March 31, 2025−3.2%−4.6%
December 31, 2024+0.3%+2.1%
September 30, 2024+5.8%+5.4%
June 30, 2024+2.0%+4.0%
March 31, 2024+7.1%+10.0%
December 31, 2023+9.5%+11.2%
September 30, 2023−3.6%−3.6%
June 30, 2023+5.6%+8.3%
March 31, 2023+6.1%+7.0%
December 31, 2022+5.1%+7.1%
September 30, 2022−5.5%−5.3%
June 30, 2022−16.3%−16.5%
March 31, 2022−6.0%−4.9%
December 31, 2021+5.7%+10.7%
September 30, 2021−1.7%+0.3%

Sources

Every number on this page points here. Each one links to the public record.

  1. 1
    CIK 1691766
  2. 2
    Filed July 22, 2026 · accession 0001691766-26-000006