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Launched · SEC filings

MFS Active Core Plus Bond ETF

MFSBNYSEMFSGrades compare a fund with genuinely similar funds. This fund's comparison group currently has too few members for a fair comparison, so no letter is published.

$24.05+0.02 (+0.08%)

As of Oct 21, 2026, 10:27 AM ET

Intraday session: up, 11 prints from 24.04 to 24.05. Range 24.03 to 24.08. Use the arrow keys to read each point.24.0724.0810 AM12 PM2 PM4 PM
Expense ratio
0.34%
Fund size
$720M
1Y total return
−1.3%
Yield · Last 12 months
4.77%
Holdings
478
Avg volume · 30D
195K sh
NAV per share
$24.00
52W range
low $23.68high $25.57
Launched
Filings
SEC EDGAR

The ETF.net MFSB Grade

—

Too few comparable funds to grade fairly

Grades compare a fund with genuinely similar funds. This fund's comparison group currently has too few members for a fair comparison, so no letter is published.

MFSB Holdings

As of Oct 21, 2026
Asset class
Stocks
Holdings
478
Top-10 weight
36%
Largest holding
Us Treasury N/B10.8%

Geography

  • United States82.67%
  • Cayman Islands6.12%
  • Canada1.49%
  • Japan1.47%
  • United Kingdom1.47%
  • Australia1.22%
  • Ireland1.13%
  • Switzerland0.66%
  • Other countries (23)3.78%
The fund’s holdings, weight-ordered — page 1 of 32.
#TickerCompanyWeight %SharesMarket valueHeld by ETFs
1—Us Treasury N/B10.80%83,200,000$79.7M28
2—Us Treasury N/B6.34%48,530,000$46.8M14
3—Us Treasury N/B5.73%45,050,000$42.2M30
4—Cash & Cash Equivalents4.41%0$32.5M67
5—Us Treasury N/B3.95%29,500,000$29.2M18
6—Us Treasury N/B1.95%14,695,000$14.4M18
7—Fnma Tba 30 Yr 5.50.80%6,150,000$5.93M22
8—Boston Properties Lp0.70%5,402,000$5.18M10
9—Fnma Tba 30 Yr 30.69%6,225,000$5.13M14
10—Bank of America Corp0.64%4,920,000$4.74M11
11—JPMorgan Chase & Co0.59%4,645,000$4.35M12
12—Aspire Mortgage Trust0.57%4,250,000$4.21M1
13—Fnma Tba 30 Yr 4.50.55%4,450,000$4.04M11
14—Highwoodsrealty Lp0.52%3,997,000$3.8M6
15—Avolon Holdings Fndg Ltd0.50%3,952,000$3.72M12

Showing 1–15 of 478 holdings

MFSB Performance

Launched Dec 5, 2024

Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.

Not enough history yet.Not enough history yet.Not enough history yet.
MFSB$9,874
SPY tracks large US stocks. It provides market context, rather than representing this fund’s strategy, asset class or investment benchmark.$11,580
Oct 20, 2025 to Oct 20, 2026. MFSB $9,874. SPY $11,580. Use the arrow keys to read each point.$10,000$11,000Oct 2025Apr 2026Oct 2026

Oct 20, 2025 – Oct 20, 2026

Returns run to the Oct 20, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.

Trailing total return for MFSB. Periods over one year show the average yearly return.
PeriodMFSB
Year to date−1.3%
1 month−0.6%
3 months−1.9%
1 year−1.3%
3 yearsFund is under 3 years oldper year—
5 yearsFund is under 5 years oldper year—
10 yearsFund is under 10 years oldper year—

As of the close, with distributions reinvested.

Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.

Annual total returns for MFSB
YearReturn barMFSB
2026 YTD−1.3%
2025+7.4%
2024−1.5%

Since listing, Dec 5, 2024

MFSB in the news

Filtered to MFSB · MFS

MFSB Dividends

Adds up every distribution paid per share over the last 12 months, divided by the last completed close. Distributions are counted by ex-date. Data through Oct 20, 2026.
4.77%Last 12 months
Payout per share
$1.15Last 12 months
Last payment
$0.10 per share
Paid on
Shares bought on or after this date do not qualify for this distribution.
Frequency
Monthly

Distribution history

2024–2026

One bar per payment. 22 payments from 2024 to 2026 YTD. Dec 30, 2024 $0.09; Jan 31, 2025 $0.09; Feb 28, 2025 $0.09; Mar 31, 2025 $0.10; Apr 30, 2025 $0.10; May 30, 2025 $0.10; Jun 30, 2025 $0.09; Jul 31, 2025 $0.11; Aug 29, 2025 $0.10; Sep 30, 2025 $0.09; Oct 31, 2025 $0.10; Nov 28, 2025 $0.09; Dec 30, 2025 $0.10; Jan 30, 2026 $0.10; Feb 27, 2026 $0.09; Mar 31, 2026 $0.09; Apr 30, 2026 $0.09; May 29, 2026 $0.10; Jun 30, 2026 $0.10; Jul 31, 2026 $0.10; Aug 31, 2026 $0.10; Sep 30, 2026 $0.10. Use the arrow keys to read each point.202420252026YTD
Ex-datePay dateAmount per share
Sep 30, 2026Oct 1, 2026$0.10
Aug 31, 2026Sep 1, 2026$0.10
Jul 31, 2026Aug 3, 2026$0.10
Jun 30, 2026Jul 1, 2026$0.10
May 29, 2026Jun 1, 2026$0.10
Apr 30, 2026May 1, 2026$0.09
Mar 31, 2026Apr 1, 2026$0.09
Feb 27, 2026Mar 2, 2026$0.09
Jan 30, 2026Feb 2, 2026$0.10
Dec 30, 2025Dec 31, 2025$0.10
Nov 28, 2025Dec 1, 2025$0.09
Oct 31, 2025Nov 3, 2025$0.10

MFSB Risk

How much the fund’s monthly returns vary, scaled to a year.
3.9%
Annualised · 21 months to Sep 2026
How it’s calculated: standard deviation

The sample standard deviation of monthly total returns, multiplied by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.

Return above 3-month US Treasury bills per unit of volatility.
−0.30
vs 3-month T-bills · 21 months to Sep 2026
How it’s calculated: Sharpe ratio

Subtract each month’s Treasury-bill return from the fund’s monthly total return.

Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.

The largest fall from a peak to the low that followed.
−4.1%
22 months · trough Sep 2026
How it’s calculated: maximum drawdown

The largest percentage decline from an earlier peak, using total returns with reinvested distributions.

Uses up to five years through the last close, with at least 12 months required.

How strongly the fund’s returns move with its asset-class index.
0.08
vs its asset-class index
How it’s calculated: beta

The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.

MFSB Cost

Expense ratio0.34%

MFSB costs $34.00 a year on $10,000.