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SDSI

GradeBNASDAQ Global Market

American Century Short Duration Strategic Income ETF

Core US Bond · American Century · Inception 2022-10-11

$50.60−0.17 (−0.34%)

As of Sep 23, 2026, 2:18 PM EDT

History starts Oct 11, 2022.
Intraday session: down, 51 prints from 50.77 to 50.60. Range 50.59 to 50.75. Use the arrow keys to read each point.$50.65$50.70$50.7510 AM12 PM2 PM4 PM
Expense ratio
0.32%
Fund size
$302M
1Y return
+2.8%
Yield · Last 12 months
4.71%
Holdings
451
Volume · 30D
0M sh
NAV per share
$50.69
52W range
low $50.64high $52.04

The ETF.net SDSI Grade

B

65/ 100

Rank 10 of 29 in Global Aggregate Bond (Unhedged)

Confidence High

Six-pillar profile for SDSI. Scores out of 100: Cost 75, Risk 76, Mission 55, Tradability 54, Holdings 72, Durability 50. Strongest: Risk (76). Weakest: Durability (50). No single pillar leads.
F< 25
D≥ 25
C≥ 40
B≥ 55
A≥ 70

Score 65 of 100 sits in the B band. Bands: A ≥ 70, B ≥ 55, C ≥ 40, D ≥ 25, F < 25; the scale skips E.

  • Cost

    What you pay to own it — the expense ratio plus trading frictions, ranked within its category.
    AScore 75
    Category rank9/29 · top 31%
  • Mission

    How faithfully it does the job it claims — tracking its mandate or index with minimal slippage.
    BScore 55
    Category rank26/27 · bottom quartile
  • Risk

    How violently it can move — volatility, drawdown depth, and downside capture versus its category.
    AScore 76
    Category rank4/29 · top 14%
  • Tradability

    How cheaply and easily you can get in and out — liquidity, spread, and premium/discount stability.
    CScore 54
    Category rank11/29 · top 38%
  • Holdings

    What it actually owns — the quality, breadth, and concentration of the underlying portfolio.
    AScore 72
    Category rank8/29 · top 28%
  • Durability

    Whether it will still be here — the fund’s assets, age, flows, and issuer staying power.
    CScore 50
    Category rank18/29 · mid-pack

Graded as of Sep 22, 2026

Our read on SDSI

ETF.net Research

BActive short-duration credit in an ETF wrapper. Managers roam investment-grade and high-yield corporates, government paper and securitized debt, US and overseas, chasing income while keeping rate sensitivity short.

Stated mandate

The fund seeks current income and, secondarily, long-term capital appreciation. It uses active bond selection and tactical sector management across U.S. and non-U.S. markets.

Why people hold it

  1. 01Short by design. It measures itself against the Bloomberg U.S. 1-3 Year Government/Credit index, so it carries far less rate sensitivity than the intermediate aggregate funds that define this category.americancentury.com
  2. 02Go-anywhere toolkit: investment-grade and high-yield corporates, Treasuries and agency paper, mortgage- and asset-backed bonds, US and non-US, spread across roughly 400 positions.americancentury.com
  3. 030.32% a year undercuts the median fund in its bond cohort, unusual for active management, and holdings are disclosed daily rather than quarterly.americancentury.com
  4. 04Income is the stated first objective, with capital appreciation second, and the fund's policy is to pay distributions monthly.

Worth knowing

  1. 01Cheap for active, pricey next to index. BND, SCHZ and SPAB each charge 0.03%, so the managers' sector calls carry the whole burden of justifying the gap.
  2. 02The high-yield sleeve is where the extra income comes from, and it is also where credit stress shows up first. This is not a Treasury-only short bond fund.americancentury.com
  3. 03It trades lightly compared with the index heavyweights in its cohort, which tends to mean wider spreads. Limit orders matter more here than with a mega-fund.

SDSI Holdings

As of Sep 22, 2026, 8:30 PM
Asset class
Bonds
Holdings
451
Top-10 weight
18%
Largest holding
US TREASURY N/B 09/29 4.37510.3%

Sectors

  • Communication90.0%
  • Industrials7.5%
  • Health Care2.5%

Geography

  • United States99.34%
  • France0.25%
  • Belgium0.25%
  • Canada0.17%
The fund’s holdings, weight-ordered — page 1 of 28.
#TickerCompanyWeight %SharesMarket valueIn ETFs
001US TREASURY N/B 09/29 4.37510.35%32,000,000$32M5
002SSC GOVERNMENT MM GVMXX2.48%7,577,328$8M89
003US DOLLAR1.21%3,703,513$4M223
004US TREASURY N/B 08/28 4.1250.81%2,510,000$2M43
005US TREASURY N/B 06/27 4.6250.72%2,200,000$2M12
006CCO HLDGS LLC/CAP CORP SR UNSECURED 144A 02/28 50.61%1,873,000$2M40
007AMERICAN AIRLINES INC SR SECURED 144A 02/28 7.250.59%1,790,000$2M39
008GLOBAL ATLANTIC FIN CO COMPANY GUAR 144A 10/29 4.40.59%1,880,000$2M18
009AUST + NZ BANKING GROUP SUBORDINATED 144A 11/35 VAR0.58%2,011,000$2M17
010BP4T0FDR2 CDS USD R V 03MEVENT SP4T0FDR2_PRO CCPCDX0.57%22,551,760$2M2
011UNITED STATES TREASURY NOTE 09/28 4.6250.55%1,700,000$2M1
012SWEDBANK AB JR SUBORDINA REGS 12/99 VAR0.54%1,600,000$2M6
013HERC HOLDINGS INC COMPANY GUAR 144A 06/30 70.54%1,605,000$2M56
014EXPAND ENERGY CORP COMPANY GUAR 03/30 5.3750.53%1,625,000$2M38
015UNITED AIRLINES INC SR SECURED 144A 04/29 4.6250.51%1,585,000$2M26

Showing 1–15 of 416 holdings

SDSI Performance

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

SDSI$10,279
SPY tracks large US stocks. It provides market context, rather than representing this fund’s strategy, asset class or investment benchmark.$11,723
Sep 22, 2025 to Sep 22, 2026. SDSI $10,279. SPY $11,723. Use the arrow keys to read each point.$9,353$10,646$11,940Sep 2025Mar 2026Sep 2026

Sep 22, 2025 – Sep 22, 2026

Returns run to the Sep 22, 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 SDSI. Periods over one year show the average yearly return.
PeriodSDSI
Year to date+1.5%
1 month−0.4%
3 months+0.3%
1 year+2.8%
3 years+5.6%per 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 SDSI
YearReturn barSDSI
2026 YTD+1.5%
2025+6.5%
2024+5.6%
2023+5.9%
2022+2.4%

Since listing, Oct 11, 2022

SDSI in the news

ETF.net Research hasn’t filed on SDSI yet — coverage lands here as it’s written.

SDSI 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 Sep 22, 2026.
4.71%Last 12 months
Payout per share
$2.39Last 12 months
Last payment
$0.19 per share
Paid on
Shares bought on or after this date do not qualify for this distribution.
Frequency
Monthly

Distribution history

2023–2026

One bar per payment. 44 payments from 2023 to 2026 YTD. Feb 1, 2023 $0.16; Mar 1, 2023 $0.20; Apr 3, 2023 $0.23; May 1, 2023 $0.21; Jun 1, 2023 $0.23; Jul 3, 2023 $0.21; Aug 1, 2023 $0.20; Sep 1, 2023 $0.22; Oct 2, 2023 $0.28; Nov 1, 2023 $0.23; Dec 1, 2023 $0.28; Dec 18, 2023 $0.28; Feb 1, 2024 $0.24; Mar 1, 2024 $0.22; Apr 1, 2024 $0.20; May 1, 2024 $0.25; Jun 3, 2024 $0.22; Jul 1, 2024 $0.19; Aug 1, 2024 $0.24; Sep 3, 2024 $0.26; Oct 1, 2024 $0.24; Nov 1, 2024 $0.23; Dec 2, 2024 $0.21; Dec 17, 2024 $0.28; Feb 3, 2025 $0.20; Mar 3, 2025 $0.22; Apr 1, 2025 $0.21; May 1, 2025 $0.23; Jun 2, 2025 $0.22; Jul 1, 2025 $0.21; Aug 1, 2025 $0.23; Sep 2, 2025 $0.22; Oct 1, 2025 $0.16; Nov 3, 2025 $0.21; Dec 1, 2025 $0.18; Dec 16, 2025 $0.26; Feb 5, 2026 $0.22; Mar 5, 2026 $0.20; Apr 7, 2026 $0.22; May 6, 2026 $0.18; Jun 4, 2026 $0.18; Jul 7, 2026 $0.20; Aug 6, 2026 $0.21; Sep 4, 2026 $0.19. Use the arrow keys to read each point.2023202420252026YTD
Ex-datePay dateAmount per share
Sep 4, 2026Sep 8, 2026$0.19
Aug 6, 2026Aug 10, 2026$0.21
Jul 7, 2026Jul 9, 2026$0.20
Jun 4, 2026Jun 8, 2026$0.18
May 6, 2026May 8, 2026$0.18
Apr 7, 2026Apr 9, 2026$0.22
Mar 5, 2026Mar 9, 2026$0.20
Feb 5, 2026Feb 9, 2026$0.22
Dec 16, 2025Dec 18, 2025$0.26
Dec 1, 2025Dec 3, 2025$0.18
Nov 3, 2025Nov 5, 2025$0.21
Oct 1, 2025Oct 3, 2025$0.16

SDSI Risk

How much the fund’s monthly returns vary, scaled to a year.
1.7%
Annualised · 36 months to Aug 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.
0.63
vs 3-month T-bills · to Aug 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.
−1.3%
47 months · trough Jul 2023
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.
0.28
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.

SDSI Cost

Expense ratio0.32%
  • The middle half of Global Aggregate Bond (Unhedged) funds
  • Median 0.41%

7 of the 27 Global Aggregate Bond (Unhedged) funds charge less.

SDSI costs $32.00 a year on $10,000. The median Global Aggregate Bond (Unhedged) fund costs $41.00.