LMBS vs VMBS

LMBSCFirst Trust Low Duration Opportunities ETF

VMBSAVanguard Mortgage-Backed Securities ETF

In short

LMBS Most mortgage-bond ETFs just clone an index. LMBS hires a manager to hunt current income across roughly 1,100 mortgage positions, keeps the duration short, and pays out monthly. Active where the category is mostly autopilot.

VMBS The plumbing of the U.S. housing market in one ticker: pooled home loans from Ginnie, Fannie and Freddie, tracked by index for 0.03% a year, with income paid monthly.

Stated mandate

LMBS The fund is actively managed and primarily seeks current income, with capital appreciation as a secondary objective.

VMBS The fund seeks moderate and sustainable current income by investing primarily in U.S. agency mortgage-backed pass-through securities issued by GNMA, FNMA, and FHLMC.

Why people hold it

• LMBS Actively managed, not index-bound: the team pursues current income first, with capital appreciation as a secondary goal, so the mix reflects live judgment on mortgage paper.
• Income arrives monthly rather than quarterly, spread across roughly 1,100 bond positions instead of a handful of big-ticket holdings.
• Multi-billion-dollar fund that trades actively, so getting in and out is generally straightforward rather than a hunt for a counterparty.
• Running since 2014, giving the active approach a decade-plus history through a full swing in interest rates.

• VMBS 0.03% a year is the cheap end of the mortgage-bond aisle: SPMB and MBB charge 0.04%, JMTG 0.24%, and the typical peer runs far higher.
• Agency pass-throughs from GNMA, FNMA and FHLMC. Credit isn't the main variable here; rates and mortgage behavior are.vanguard.com
• Trading since 2009, a multi-billion-dollar fund holding roughly 300 pools and paying monthly. Boring in the way bond ballast is supposed to be.
• Sits in the top quartile of its mortgage-bond peer group, one of the stronger builds in a crowded, look-alike category.

Worth knowing

• LMBS Active talent is not cheap: 0.66% a year against a 0.35% median for mortgage-bond ETFs, while index rivals VMBS (0.03%) and MBB (0.04%) charge a rounding error.
• No benchmark to lean on. What you own shifts with the manager's calls on which mortgage bonds to hold, which is the whole point and the whole risk.
• This is a focused mortgage-bond sleeve, not a broad core bond fund, so the exposure stays concentrated in one corner of the credit market.

• VMBS Mortgages don't keep a schedule. Homeowners refinance when rates fall, returning cash to reinvest at lower yields; when rates rise, payoffs slow and bonds stretch out.vanguard.com
• The mandate is current income from one slice of the bond market. No Treasuries, no corporates, no equity kicker.
• Share prices move with interest rates, so this behaves like a bond fund, not a cash parking spot.vanguard.com

Full LMBS profile⁠

Full VMBS profile⁠