Compare iShares MBS ETF (MBB) vs Vanguard Ultra Short Bond ETF (VUSB) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
iShares MBS ETF vs Vanguard Ultra Short Bond ETF — how do they compare? iShares MBS ETF trades at $89.66 (market cap $35.41B), while Vanguard Ultra Short Bond ETF trades at $49.48 (market cap $10.20B). The key difference: iShares MBS ETF is far larger — about 3.5× Vanguard Ultra Short Bond ETF's market cap, and iShares MBS ETF is more actively traded (5,388,525 versus 2,664,667). Which is the better fit depends on your goals — on Pluang, investors hold iShares MBS ETF for 96 Days and Vanguard Ultra Short Bond ETF for 61 Days on average.
| MBB | VUSB | |
|---|---|---|
Market Cap | $35.41B | $10.20B |
Volume | 5,388,525 | 2,664,667 |
Sector | Fixed Income | Leveraged / Inverse |
52-Week High | $96.91 | $50.03 |
52-Week Low | $89.09 | $49.41 |
Typical Hold Time | 96 Days | 61 Days |
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
MBB, the iShares MBS ETF, trades at $89.54, up 0.36% on the day but showing a bearish technical signal overall. The ETF has faced significant short interest growth of 98.3% in September 2026, reaching 6.57 million shares, and recently hit a 52-week low. Recent news highlights concerns over intermediate duration risk amid potential rate hikes, though institutional buying from firms like Corient Private Wealth and Baird Financial Group provides some support. Key technical indicators show oversold conditions on the 12-day RSI but strong selling pressure from moving averages.
The outlook for MBB remains cautious due to interest rate sensitivity and convexity risks in the mortgage-backed securities market. While dividend payments offer income, rising rates and inflation pressures pose downside risks. Analyst sentiment is neutral to bearish, with the ETF's performance heavily tied to Federal Reserve policy. Investors should weigh the high yield against duration risk in a tightening cycle.
VUSB trades at $49.48, up 0.08% with minimal daily movement. Technical indicators show a bearish trend with moving averages signaling sell pressure, though oscillators remain neutral. The stock faces resistance at $50 and support at $49. Recent news highlights potential benefits from short-term bond strategies amid Federal Reserve rate uncertainty.
The outlook remains cautious due to bearish technical signals and interest rate sensitivity. Opportunities include dividend stability with recent payouts, but risks involve Fed policy shifts and market volatility. Investors should weigh short-term bond appeal against broader economic headwinds.
Returns comparison
Trailing returns across standard periods
Returns comparison
Trailing returns across standard periods
Investor sentiment on Pluang
What Pluang investors did over the last 30 days
Investor sentiment on Pluang
What Pluang investors did over the last 30 days
No sentiment data available yet.
About iShares MBS ETF
The fund will invest at least 80% of its assets in the component securities of the underlying index and TBAs that have economic characteristics that are substantially identical to the economic characteristics of the component securities of the index, and the fund will invest at least 90% of its assets in fixed income securities included in the underlying index that advisor believes will help the fund track the index.
Read more on MBB →About Vanguard Ultra Short Bond ETF
VUSB is an actively managed ETF from Vanguard that invests in a diversified portfolio of high-quality, investment-grade fixed income securities with maturities typically under two years. It is designed to offer higher yield potential than traditional money market funds while maintaining limited price volatility, making it a strategic tool for managing short-term reserves with a 6-to-18-month horizon.
Read more on VUSB →
