LGOV vs SPTB

LGOVCFirst Trust Long Duration Opportunities ETF

SPTBAState Street SPDR Portfolio Treasury ETF

In short

LGOV Most government bond ETFs just copy an index. LGOV is First Trust's active version: Treasuries plus agency mortgage bonds, deliberately run long, with a mandate to keep weighted average effective duration at eight years or more.

SPTB State Street's Treasury slice of the Agg in one ticker: the whole curve from a year out to the long end, roughly 300 bonds, for three basis points. It arrived in 2024 as the Treasury building block in the SPDR Portfolio suite.

Stated mandate

LGOV The fund seeks current income while emphasizing capital preservation. It normally invests at least 80% of net assets in investment-grade debt issued or guaranteed by the U.S. government, its agencies, or government-sponsored entities.

SPTB The fund seeks to track, before fees and expenses, the price and yield performance of the Bloomberg U.S. Treasury Index and provides exposure to U.S. Treasuries with at least one year remaining to maturity.

Why people hold it

• LGOV Actively managed, not index-shadowing: managers mix Treasuries with agency mortgage-related bonds and can trade them to-be-announced, including mortgage dollar rolls.ftportfolios.combusinesswire.com
• The duration promise is written down: the advisor targets a weighted average effective duration of eight or more years, so rate exposure is the point, not a byproduct.ftportfolios.com
• At least 80% of assets sit in investment-grade US government, agency or GSE debt, across roughly 180 positions, and the fund pays monthly.
• Live since 2019, so the active approach has a track record through a genuinely brutal stretch for long bonds rather than a backtest.

• SPTB Three basis points. The typical fund in the Treasury cohort charges about five times that, and SPTB undercuts iShares' GOVT at five while tying Vanguard's VTG.
• One ticker covers the full Treasury curve, everything with at least a year to maturity, instead of stacking separate short, intermediate and long sleeves.ssga.com
• Plain index replication of the Bloomberg U.S. Treasury Index: government paper only, no credit sleeve, no derivatives overlay in the mandate.ssga.com
• Pays income monthly, and the implementation ranks in the top quartile of its Treasury peer group on our review.

Worth knowing

• LGOV Active costs money: 0.49% a year against a roughly 0.15% median for Treasury-bond peers, with index options like GOVT at 0.05% and SPTB at 0.03%.
• Long duration swings both ways. Eight-plus years of duration means far bigger price moves per shift in yields than a short-Treasury fund.ftportfolios.com
• Mid-sized and only moderately traded, so spreads can run wider than the cohort's index giants, and mortgage bonds add prepayment and liquidity wrinkles Treasuries do not have.sec.gov

• SPTB Full-curve means long bonds are in the mix, so the price swings with interest rates far more than a short-term Treasury fund does.
• It launched in 2024, so the live record is short next to cohort veterans that have traded through multiple rate cycles.
• Moderately traded rather than the volume leader in its category, so bigger orders are worth routing with limits and a glance at the spread.

Full LGOV profile⁠

Full SPTB profile⁠