VUSB vs VUSI

VUSBAVanguard Ultra-Short Bond ETF

VUSICVoya Ultra Short Income ETF

In short

VUSB Vanguard's first actively managed bond ETF, run by its in-house fixed income team and priced at 0.10%. It holds investment-grade paper maturing inside two years: a step past a money fund, well short of a real bond fund.

VUSI Voya's late-2025 arrival in the cash-parking aisle: an actively managed ultra-short bond fund built to hunt current income while keeping principal steady. A new name in a category ruled by entrenched giants.

Stated mandate

VUSB The fund seeks current income with limited price volatility while investing in diversified high- and medium-quality fixed-income securities. It expects to maintain a dollar-weighted average maturity of 0–2 years.

VUSI VUSI seeks high current income while preserving capital. It is actively managed and normally invests at least 80% of its assets in diversified income-producing bonds or economically similar derivatives.

Why people hold it

• VUSB At 0.10%, it costs half the typical ultra-short bond ETF and undercuts the other leaders in the group: SHV, PULS, FLDR and DUSB all charge 0.15%.
• Active, not adventurous. The managers buy investment-grade bonds (A3-or-better high quality plus BBB-tier medium quality) and hold average maturity to zero-to-two years.vanguard.com
• Income lands monthly, sourced from roughly 170 bonds, so no single issuer drives the outcome.
• A multi-billion-dollar fund that trades actively, and the same portfolio team also runs a similar Vanguard ultra-short fund.vanguard.com

• VUSI Actively managed, not index-shackled: at least 80% of assets sit in diversified income-producing bonds or economically similar derivatives, with a stated goal of high current income while preserving capital.
• The prospectus sets a monthly income distribution schedule, which matches how most people use a cash-adjacent holding.
• The mandate isn't fenced to US paper. It can reach into international and emerging market issuers, a wider pool of short-dated bonds than a Treasury-only fund shops from.
• Ordinary 1940 Act fund plumbing. No partnership wrapper, no K-1 arriving in your mailbox in March.

Worth knowing

• VUSB This is not a money market fund. No fixed $1 share price, and the market price can trade above or below the value of the holdings.vanguard.com
• The mandate allows BBB-tier credit, a notch of risk a Treasury-only neighbor like SHV doesn't take.vanguard.com
• Bonds this short reprice with short-term rates, so the monthly payout drifts up and down instead of holding a set level.vanguard.com

• VUSI Active costs more here: 0.25% a year against a category median of 0.20%, and above the aisle's scale players (VUSB at 0.10%, SHV and PULS at 0.15%).
• Launched in November 2025, so there's no long record to judge and the fund is still building scale. Newer, smaller funds tend to trade with wider bid-ask spreads than category veterans.stockanalysis.com
• Ultra-short is not the same as cash. This holds bonds, and the mandate allows derivatives and non-US credit, so the share price can move.

Full VUSB profile⁠

Full VUSI profile⁠