# MFS Corporate Bond B (MFBBX)

> Source: Nexqual · https://nexqual.com/MFBBX · data as of 2026-10-24 00:03 UTC · cite as "Nexqual, MFS Corporate Bond B (MFBBX), nexqual.com/MFBBX" · informational, not investment advice.

**Price:** USD 11.89 (-0.25% on the day) · last close of Oct 23, 2026; US market closed, not a live price. Prev close 11.92 · day 11.89–11.89 · 52w 11.72–12.71 · market cap null · NAS

## Key facts
- Total return with dividends: 1Y -2.8% vs S&P 500 +13.4%; 5Y -5.3% vs S&P 500 +76.9%.

## Total return (dividends reinvested)
|  | 1Y (from 2025-10-24) | 5Y (from 2021-10-25) |
|---|---|---|
| Total return | -2.8% | -5.3% |
| S&P 500 (SPY) | +13.4% | +76.9% |
| Per year | -2.8% | -1.1% |
| Volatility (annualized) | 4.2% | 6.8% |
| Max drawdown | -5.1% (Feb 2026→Sep 2026) | -22.8% (Nov 2021→Oct 2022) |

## Peers
MTRBX (MFS Total Return Trust B) USD 20.39 +0.00% · MITBX (Massachusetts Investors Trust C) USD 35.95 -0.00% · MFBFX (Massachusetts Financial Bond Fd) USD 11.91 +0.00% · MFBCX (MFS Bond Fund Class C) USD 11.87 +0.00% · MFEBX (MFS Series Trust I - MSF Value ) USD 54.89 +0.00%

## More
Full page: https://nexqual.com/MFBBX · Free keyless MCP server with the same data and citations: https://mcp.nexqual.com/mcp · Guide for agents: https://nexqual.com/agents · https://nexqual.com/llms.txt