PMBS vs SPMB
PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund against State Street SPDR Portfolio Mortgage Backed Bond ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
3%
37 shared positions
Fee gap
67 bp
SPMB is cheaper
1-year return gap
0.9 pts
SPMB is ahead
Larger fund
SPMB
$6.9B
Side by side
| PMBS | SPMB | |
|---|---|---|
| Fund | PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund | State Street SPDR Portfolio Mortgage Backed Bond ETF |
| Issuer | PIMCO | State Street SPDR |
| Category | Mortgage & Securitized | Mortgage & Securitized |
| Expense ratio | 0.71% | 0.04% |
| Assets | $1.4B | $6.9B |
| Average daily dollar volume | $13M | $51M |
| Listed | Jul 31, 1997 | Jan 15, 2009 |
| FrenzyCap score | 51 | 95 |
| 1-month return | −1.8% | −1.1% |
| 3-month return | −3.7% | −2.6% |
| Year to date | −6.1% | −4.7% |
| 1-year return | −6.6% | −5.7% |
| 30-day volatility | 7.0% | 6.6% |
| Worst drawdown, 1 year | −9.5% | −8.0% |
| Trailing 12-month yield | 4.97% | 4.30% |
| Holdings | 1,305 | 2,763 |
| Top 10 weight | 63.1% | 7.2% |
| Look-through P/E | — | — |
| Holdings vs fair value | — | — |
| Holdings above 200-day average | — | — |
| Net flow, latest 3 reported months | — | +$196M thru Jun 2026 |
| 30-day implied volatility | — | 29.4% |
| Holdings as of | as of Oct 20, 2026issuer data | as of Oct 20, 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
35% of PMBS · 3% of SPMB| Holding | PMBS | SPMB |
|---|---|---|
| FNMA TBA 5.5% NOV 30YR, due Nov 12, 2056 | 1.20% | 0.96% |
| FNMA TBA 5.0% NOV 30YR, due Nov 12, 2056 | 1.99% | 0.30% |
| GNMA II TBA 6.0% NOV 30YR JMBO, due Nov 19, 2056 | 1.55% | 0.29% |
| GNMA II TBA 5.5% NOV 30YR JMBO, due Nov 19, 2056 | 4.31% | 0.18% |
| FNMA TBA 4.5% NOV 30YR, due Nov 12, 2056 | 1.43% | 0.15% |
| GNMA II TBA 4.0% NOV 30YR JMBO, due Nov 19, 2056 | 1.70% | 0.14% |
| GNMA II TBA 3.5% NOV 30YR JMBO, due Nov 19, 2056 | 1.66% | 0.13% |
| GNMA II MULTPL SGL 30YR #MA7649M, due Oct 20, 2051 | 3.64% | 0.12% |
| FNMA TBA 5.5% NOV 15YR, due Nov 17, 2041 | 2.48% | 0.12% |
| FNMA TBA 3.0% NOV 30YR, due Nov 12, 2056 | 6.48% | 0.12% |
| FNMA TBA 2.0% NOV 15YR, due Nov 17, 2041 | 0.33% | 0.11% |
| GNMA II TBA 2.0% NOV 30YR JMBO, due Nov 19, 2056 | 1.93% | 0.10% |
| GNMA II TBA 4.5% NOV 30YR JMBO, due Nov 19, 2056 | 0.99% | 0.10% |
| FNMA TBA 5.0% NOV 15YR, due Nov 17, 2041 | 1.68% | 0.09% |
| GNMA II MULTPL SGL 30YR #MB1214M, due Jun 20, 2056 | 0.13% | 0.06% |
| FNMA TBA 3.5% NOV 15YR, due Nov 17, 2041 | 0.07% | 0.06% |
| FNMA TBA 4.5% NOV 15YR, due Nov 17, 2041 | 0.29% | 0.04% |
| GNMA II MULTPL SGL 30YR #MA7937M, due Mar 20, 2052 | 1.11% | 0.04% |
| GNMA II MULTPL SGL 30YR #MB0362M, due May 20, 2055 | 0.21% | 0.04% |
| FNMA TBA 3.0% NOV 15YR, due Nov 17, 2041 | 1.01% | 0.03% |
| FNMA TBA 2.5% NOV 15YR, due Nov 17, 2041 | 0.07% | 0.03% |
| FNMA PASS THRU 30YR #ZT1857, due Mar 1, 2049 | 0.03% | 0.01% |
| FNMA PASS THRU 20YR #MA4632, due Jun 1, 2042 | 0.01% | 0.10% |
| GNMA II MULTPL SGL 30YR #MA3244M, due Nov 20, 2045 | 0.01% | 0.01% |
| GNMA II MULTPL SGL 30YR #MA5711M, due Jan 20, 2049 | 0.00% | 0.04% |
Sector mix of the stock holdings
No sector breakdown: these funds hold few classified stocks.
More: full overlap table · PMBS holdings · SPMB 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.