Ken Griffin
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Ken Griffin’s Janus Henderson Mortgage-Backed Securities ETF JMBS Stock Holding History

Ken Griffin’s Portfolio JMBS Stock Details JMBS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$3.62M Buy
+80,149
New +$3.67M ﹤0.01% 4899
2025
Q4 		– Sell
-58,220
Closed -$2.66M – 13404
2025
Q3 		$2.66M Sell
58,220
-55,299
-49% -$2.49M ﹤0.01% 5520
2025
Q2 		$5.11M Buy
+113,519
New +$5.05M ﹤0.01% 4075
2025
Q1 		– Sell
-509,882
Closed -$22.7M – 15049
2024
Q4 		$22.5M Buy
+509,882
New +$23M ﹤0.01% 2043
2024
Q3 		– Sell
-57,747
Closed -$2.58M – 14760
2024
Q2 		$2.58M Buy
57,747
+4,092
+8% +$181K ﹤0.01% 4842
2024
Q1 		$2.42M Buy
+53,655
New +$2.42M ﹤0.01% 5157
2023
Q4 		– Sell
-65,201
Closed -$2.83M – 14799
2023
Q3 		$2.83M Buy
65,201
+33,327
+105% +$1.49M ﹤0.01% 4581
2023
Q2 		$1.46M Buy
+31,874
New +$1.47M ﹤0.01% 5725
2023
Q1 		– Sell
-5,935
Closed -$270K – 15109
2022
Q4 		$270K Sell
5,935
-25,900
-81% -$1.17M ﹤0.01% 9547
2022
Q3 		$1.43M Buy
+31,835
New +$1.52M ﹤0.01% 6238
2022
Q2 		– Sell
-40,940
Closed -$2.04M – 13500
2022
Q1 		$2.04M Buy
40,940
+476
+1% +$24.4K ﹤0.01% 6046
2021
Q4 		$2.13M Buy
40,464
+32,274
+394% +$1.71M ﹤0.01% 6086
2021
Q3 		$435K Sell
8,190
-78,209
-91% -$4.16M ﹤0.01% 10220
2021
Q2 		$4.59M Buy
86,399
+75,610
+701% +$4.02M ﹤0.01% 4623
2021
Q1 		$572K Buy
10,789
+357
+3% +$19.1K ﹤0.01% 9387
2020
Q4 		$558K Sell
10,432
-53,726
-84% -$2.88M ﹤0.01% 7934
2020
Q3 		$3.44M Sell
64,158
-105,902
-62% -$5.68M ﹤0.01% 3742
2020
Q2 		$9.13M Buy
+170,060
New +$9.06M ﹤0.01% 2333

Other funds holding JMBS

Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
HTC
Haverford Trust Company Radnor, Pennsylvania $11.6B AUM 18.97% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
Osaic Holdings
Osaic Holdings Scottsdale, Arizona $68.3B AUM 20.5% 1-Year Est. Return
Focus Partners Wealth
Focus Partners Wealth Boston, Massachusetts $97.6B AUM 29.43% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return
GI
Gradient Investments Arden Hills, Minnesota $7.25B AUM 20.71% 1-Year Est. Return

Ken Griffin's JMBS Position: Q1 2026 in Review

Ken Griffin opened a new position in Janus Henderson Mortgage-Backed Securities ETF (JMBS) in Q1 2026: 80,149 shares worth $3.62M. The stake represents ﹤0.01% of the portfolio and ranks #4899 among its holdings. This is a return to the name: Ken Griffin previously reported a position in JMBS as recently as Q3 2025.

Ken Griffin first reported a position in JMBS in Q2 2020 and has held it in 18 quarters since. The position peaked at $22.5M in Q4 2024. 270 funds tracked by Wall St. Rank hold JMBS as of Q1 2026.

  • Ken Griffin held 80,149 shares of Janus Henderson Mortgage-Backed Securities ETF worth $3.62M as of Q1 2026.
  • Janus Henderson Mortgage-Backed Securities ETF was a new Ken Griffin position in Q1 2026.
  • Janus Henderson Mortgage-Backed Securities ETF made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #4899 holding.
  • Ken Griffin first reported a position in Janus Henderson Mortgage-Backed Securities ETF in Q2 2020 and has held it in 18 quarters since.
  • Ken Griffin's Janus Henderson Mortgage-Backed Securities ETF position peaked at $22.5M in Q4 2024.
  • 270 funds tracked by Wall St. Rank held Janus Henderson Mortgage-Backed Securities ETF as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.