JMTG vs MBB
JPMorgan Mortgage-Backed Securities ETF against iShares MBS ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
2%
30 shared positions
Fee gap
20 bp
MBB is cheaper
1-year return gap
0.2 pts
JMTG is ahead
Larger fund
MBB
$35.2B
Side by side
| JMTG | MBB | |
|---|---|---|
| Fund | JPMorgan Mortgage-Backed Securities ETF | iShares MBS ETF |
| Issuer | JPMorgan | iShares |
| Category | Mortgage & Securitized | Mortgage & Securitized |
| Expense ratio | 0.24% | 0.04% |
| Assets | $6.7B | $35.2B |
| Average daily dollar volume | $41M | $676M |
| Listed | Aug 18, 2000 | Mar 13, 2007 |
| FrenzyCap score | 79 | 98 |
| 1-month return | −1.1% | −1.2% |
| 3-month return | −2.7% | −2.9% |
| Year to date | −4.7% | −5.0% |
| 1-year return | −5.4% | −5.6% |
| 30-day volatility | 5.3% | 6.7% |
| Worst drawdown, 1 year | −7.6% | −8.1% |
| Trailing 12-month yield | 4.53% | 4.50% |
| Holdings | 2,574 | 10,818 |
| Top 10 weight | 7.9% | 6.0% |
| Look-through P/E | — | — |
| Holdings vs fair value | — | — |
| Holdings above 200-day average | — | — |
| Net flow, latest 3 reported months | +$460M thru May 2026 | −$179M thru May 2026 |
| 30-day implied volatility | — | 8.3% |
| Holdings as of | as of Oct 20, 2026issuer data | as of Oct 19, 2026issuer data |
Returns are price returns and exclude distributions. Flows are each fund's own latest reported months and may not cover the same period.
Largest shared holdings
7% of JMTG · 2% of MBB| Holding | JMTG | MBB |
|---|---|---|
| TBA UMBS SINGLE 5.5%, due Nov 25, 2056 | 0.89% | 0.60% |
| TBA UMBS SINGLE FAMILY 5%, due Nov 25, 2056 | 1.95% | 0.35% |
| TBA UMBS SINGLE 2.5%, due Nov 25, 2056 | 1.04% | 0.16% |
| UMBS MORTPASS 5% 10/54, due Oct 1, 2054 | 0.25% | 0.14% |
| GNMA II MORTPASS 4% 10/52, due Oct 20, 2052 | 0.24% | 0.12% |
| UMBS MORTPASS 2.5% 11/51, due Nov 1, 2051 | 0.08% | 0.09% |
| GNMA II MORTPASS 3% 09/51, due Sep 20, 2051 | 0.17% | 0.07% |
| UMBS MORTPASS 2.5% 03/52, due Mar 1, 2052 | 0.16% | 0.06% |
| UMBS MORTPASS 2.5% 02/52, due Feb 1, 2052 | 0.09% | 0.04% |
| UMBS MORTPASS 2.5% 07/51, due Jul 1, 2051 | 0.19% | 0.03% |
| GNMA II MORTPASS 3% 07/52, due Jul 20, 2052 | 0.08% | 0.03% |
| GNMA II 2.5% 07/52, due Jul 20, 2052 | 0.42% | 0.02% |
| GNMA II 2.5% 10/52, due Oct 20, 2052 | 0.13% | 0.02% |
| UMBS MORTPASS 2.5% 06/50, due Jun 1, 2050 | 0.05% | 0.02% |
| GNMA II 3.5% 01/54, due Jan 20, 2054 | 0.04% | 0.01% |
| GNMA II 2.5% 03/53, due Mar 20, 2053 | 0.01% | 0.01% |
| GNMA II MORTPASS 3% 03/53, due Mar 20, 2053 | 0.14% | 0.01% |
| UMBS MORTPASS 2.5% 09/51, due Sep 1, 2051 | 0.04% | 0.00% |
| UMBS MORTPASS 2.5% 05/51, due May 1, 2051 | 0.14% | 0.00% |
| UMBS MORTPASS 3% 09/51, due Sep 1, 2051 | 0.15% | 0.00% |
| GNMA II 2.5% 01/53, due Jan 20, 2053 | 0.44% | 0.00% |
| UMBS MORTPASS 3.5% 07/50, due Jul 1, 2050 | 0.05% | 0.00% |
| GNMA II 3.5% 02/54, due Feb 20, 2054 | 0.03% | 0.00% |
| UMBS MORTPASS 3% 10/51, due Oct 1, 2051 | 0.04% | 0.00% |
| UMBS MORTPASS 5% 04/42, due Apr 1, 2042 | 0.01% | 0.00% |
Sector mix of the stock holdings
No sector breakdown: these funds hold few classified stocks.
More: full overlap table · JMTG holdings · MBB holdings
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.