Jane Street’s MFS Active Core Plus Bond ETF MFSB Stock Holding History

Jane Street’s Portfolio MFSB Stock Details MFSB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.94M	Buy	77,723 +62,866	+423%	+$1.57M	﹤0.01%	5222
2026 Q1	$370K	Sell	14,857 -5,376	-27%	-$136K	﹤0.01%	8752
2025 Q4	$510K	Buy	+20,233	New	+$512K	﹤0.01%	7644
2025 Q3	–	Sell	-18,106	Closed	-$452K	–	12092
2025 Q2	$452K	Buy	18,106 +2,073	+13%	+$51.1K	﹤0.01%	7114
2025 Q1	$398K	Buy	+16,033	New	+$396K	﹤0.01%	7281

Other funds holding MFSB

LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return

WWA

WCG Wealth Advisors Las Vegas, Nevada $4.22B AUM 26.72% 1-Year Est. Return

CWS

Confluence Wealth Services Mcmurray, Pennsylvania $3.5B AUM 22.08% 1-Year Est. Return

Jones Financial Companies Des Peres, Missouri $250B AUM 21.32% 1-Year Est. Return

MFGM

Marshall Financial Group (Maryland) Hunt Valley, Maryland $686M AUM 24.18% 1-Year Est. Return

ETC

Exchange Traded Concepts Oklahoma City, Oklahoma $21.9B AUM 68.6% 1-Year Est. Return

Cetera Investment Advisers Schaumburg, Illinois $110B AUM 26.29% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return

PAG

Private Advisor Group Morristown, New Jersey $21.8B AUM 28.57% 1-Year Est. Return

Fermata Advisors Sonoma, California $495M AUM 20.19% 1-Year Est. Return

Jane Street's MFSB Position: Q2 2026 in Review

Jane Street increased its MFS Active Core Plus Bond ETF (MFSB) stake by 423% in Q2 2026, buying an estimated $1.57M and bringing the position to 77,723 shares worth $1.94M. The position accounts for ﹤0.01% of the portfolio, ranked #5222.

Jane Street first reported a position in MFSB in Q1 2025 and has held it in 5 quarters since. 39 funds tracked by Wall St. Rank hold MFSB as of Q2 2026.

Jane Street held 77,723 shares of MFS Active Core Plus Bond ETF worth $1.94M as of Q2 2026.
Jane Street bought 62,866 MFS Active Core Plus Bond ETF shares in Q2 2026, an estimated $1.57M.
MFS Active Core Plus Bond ETF made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #5222 holding.
Jane Street first reported a position in MFS Active Core Plus Bond ETF in Q1 2025 and has held it in 5 quarters since.
39 funds tracked by Wall St. Rank held MFS Active Core Plus Bond ETF as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.