Compare iShares MBS ETF (MBB) vs iShares Broad USD Investment Grade Corporate Bond (USIG) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
iShares MBS ETF vs iShares Broad USD Investment Grade Corporate Bond — how do they compare? iShares MBS ETF trades at $89.79 (market cap $35.41B), while iShares Broad USD Investment Grade Corporate Bond trades at $48.77 (market cap $17.53B). The key difference: iShares MBS ETF is far larger — about 2× iShares Broad USD Investment Grade Corporate Bond's market cap, and iShares MBS ETF is more actively traded (5,388,525 versus 4,695,583). Which is the better fit depends on your goals — on Pluang, investors hold iShares MBS ETF for 96 Days and iShares Broad USD Investment Grade Corporate Bond for 44 Days on average.
| MBB | USIG | |
|---|---|---|
Market Cap | $35.41B | $17.53B |
Volume | 5,388,525 | 4,695,583 |
Sector | Fixed Income | Fixed Income |
52-Week High | $96.91 | $52.69 |
52-Week Low | $89.09 | $48.54 |
Typical Hold Time | 96 Days | 44 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 (iShares MBS ETF) trades at $89.73 with a slight 0.57% daily gain, though technical indicators signal bearish momentum with moving averages and ADX both in sell territory. The ETF recently hit a 52-week low of $91.02 in September 2026, reflecting pressure from rising intermediate-term rates and inflation concerns. Recent institutional activity shows mixed sentiment, with Corient Private Wealth increasing its position by 28.3% while short interest surged 98.3% to 6.57 million shares as of September 15, 2026.
The outlook remains cautious due to interest rate sensitivity and convexity risk in mortgage-backed securities. While Norway's $2.3 trillion sovereign wealth fund rotation into MBS provides institutional support, the intermediate duration of 5.68 years exposes MBB to Fed policy uncertainty. Key risks include persistent inflation and borrower prepayment behavior limiting upside potential.
USIG trades at $48.79 with a slight 0.23% daily gain. Technical indicators show a bearish bias with moving averages signaling caution, though oscillators are neutral. The ETF maintains consistent dividend distributions, with recent payments of $0.20-$0.21 per share. Institutional interest remains strong with Blue Edge Capital and Bank of New York Mellon increasing positions in 2026.
The outlook remains cautious given the bearish technical signals and lack of fundamental financial data. Investment opportunities exist through dividend income and institutional backing, but risks include market volatility and the absence of key valuation metrics for proper assessment.
Returns comparison
Trailing returns across standard periods
Returns comparison
Trailing returns across standard periods
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 iShares Broad USD Investment Grade Corporate Bond
USIG is a low-cost ETF providing broad exposure to over 11,000 U.S. investment-grade corporate bonds. It tracks the ICE BofA US Corporate Index, featuring high-quality debt from 2026 leaders like Citigroup, Bank of America, and Oracle.
Read more on USIG →
