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Janus Henderson Mortgage-Backed Securities ETF

232 hedge funds and large institutions have $5.87B invested in Janus Henderson Mortgage-Backed Securities ETF in 2025 Q3 according to their latest regulatory filings, with 38 funds opening new positions, 124 increasing their positions, 54 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

130% more repeat investments, than reductions

Existing positions increased: 124 | Existing positions reduced: 54

111% more first-time investments, than exits

New positions opened: 38 | Existing positions closed: 18

15% more capital invested

Capital invested by funds: $5.09B → $5.87B (+$781M)

6% more funds holding

Funds holding: 218232 (+14)

0% more funds holding in top 10

Funds holding in top 10: 2626 (0)

0.39% less ownership

Funds ownership: 91.88%91.49% (-0.39%)

Holders
232
Holders Change
+14
Holders Change %
+6.42%
% of All Funds
3.04%
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.34%
New
38
Increased
124
Reduced
54
Closed
18
Calls
$493K
Puts
Net Calls
+$493K
Net Calls Change
+$92K

JMBS Hedge Fund Activity: Q3 2025 in Review

232 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in Janus Henderson Mortgage-Backed Securities ETF (JMBS) for Q3 2025, worth a combined $5.87B — up 15% from $5.09B a quarter earlier.

Buyers outnumbered sellers: 38 funds opened new JMBS positions and 18 closed out — a net gain of 20 holders — while 124 added to existing stakes and 54 trimmed.

The largest buyer was Charles Schwab, adding an estimated $608M. The largest seller was Bailard, cutting an estimated $60.6M.

  • 232 institutional investors held Janus Henderson Mortgage-Backed Securities ETF (JMBS) as of Q3 2025, up from 218 in Q2 2025.
  • Funds reported $5.87B of Janus Henderson Mortgage-Backed Securities ETF stock for Q3 2025, up 15% quarter-over-quarter.
  • 38 funds opened new Janus Henderson Mortgage-Backed Securities ETF positions in Q3 2025 and 18 closed out, a net change of +20 holders.
  • The largest Janus Henderson Mortgage-Backed Securities ETF buyer in Q3 2025 was Charles Schwab, an estimated $608M added.
  • The largest Janus Henderson Mortgage-Backed Securities ETF seller in Q3 2025 was Bailard, an estimated $60.6M sold.

Based on aggregated 13F filings for Q3 2025.