Renaissance Technologies (RenTech)'s JMBS Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC (Rentech)) currently holds 30,263 shares of Janus Henderson Mortgage-Backed Securities ETF (JMBS) worth $1.38 M, representing 0.00% of the portfolio. First purchased in 2023-Q3, this short-term holding has been held for 7 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained this position in JMBS for several quarters, showing initial confidence in the investment. Largest addition occurred in Q3 2025, adding 104,700 shares. Largest reduction occurred in Q4 2025, reducing 74,437 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Janus Henderson Mortgage-Backed Securities ETF (JMBS) Holding Value Over Time
Track share changes against reported price movement
Quarterly Janus Henderson Mortgage-Backed Securities ETF (JMBS) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -74,437 | Reduce 71.10% | 30,263 | $45.69 |
| Q3 2025 | +104,700 | New Buy | 104,700 | $45.67 |
| Q4 2024 | -52,200 | Sold Out | 0 | $0.00 |
| Q3 2024 | +52,200 | New Buy | 52,200 | $46.65 |
| Q1 2024 | -20,900 | Sold Out | 0 | $0.00 |
| Q4 2023 | -16,400 | Reduce 43.97% | 20,900 | $45.93 |
| Q3 2023 | +37,300 | New Buy | 37,300 | $43.40 |
Renaissance Technologies (RenTech)'s Janus Henderson Mortgage-Backed Securities ETF Investment FAQs
Renaissance Technologies (RenTech) first purchased Janus Henderson Mortgage-Backed Securities ETF (JMBS) in Q3 2023, acquiring 37,300 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Janus Henderson Mortgage-Backed Securities ETF (JMBS) for 7 quarters since Q3 2023.
Renaissance Technologies (RenTech)'s largest addition to Janus Henderson Mortgage-Backed Securities ETF (JMBS) was in Q3 2025, adding 104,700 shares worth $4.78 M.
According to the latest 13F filing for Q4 2025, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC (Rentech), owns 30,263 shares of Janus Henderson Mortgage-Backed Securities ETF (JMBS), valued at approximately $1.38 M.
As of the Q4 2025 filing, Janus Henderson Mortgage-Backed Securities ETF (JMBS) represents approximately 0.00% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Janus Henderson Mortgage-Backed Securities ETF (JMBS) was 104,700 shares, as reported at the end of Q3 2025.