- ISIN
- US0250722578
- Issuer
- American Century
- Inception Date
- Oct 11, 2022
- Region
- Global (Broad)
- Category
- Short-Term Bond
- Leveraged
- 1x (No leverage)
- Index Tracked
- Bloomberg U.S. 1-3 Year Government/Credit Bond Index
- Distribution Policy
- Distributing
- Asset Class
- Bond
- Assets Under Management
- $210M
Share Price Chart
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Performance
SDSI Performance Chart
American Century Short Duration Strategic Income ETF (SDSI) is up 1.3% since the beginning of the year. SDSI is currently trading at $51 per share.
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Returns By Period
American Century Short Duration Strategic Income ETF (SDSI) has returned 1.28% so far this year and 4.89% over the past 12 months.
American Century Short Duration Strategic Income ETF
- 1D
- -0.05%
- 1M
- 0.29%
- YTD
- 1.28%
- 6M
- 1.46%
- 1Y
- 4.89%
- 3Y*
- 5.83%
- 5Y*
- —
- 10Y*
- —
Benchmark (S&P 500 Index)
- 1D
- -0.37%
- 1M
- -0.01%
- YTD
- 9.16%
- 6M
- 8.64%
- 1Y
- 25.22%
- 3Y*
- 19.78%
- 5Y*
- 11.99%
- 10Y*
- 13.88%
SDSI Monthly Returns History
Based on dividend-adjusted daily data since Oct 13, 2022, SDSI's average daily return is +0.02%, while the average monthly return is +0.46%. At this rate, an investment would double in approximately 12.6 years.
Historically, 80% of months were positive and 20% were negative. The best month was Nov 2023 with a return of +1.6%, while the worst month was Mar 2026 at -0.7%. The longest winning streak lasted 16 consecutive months, and the longest losing streak was 2 months.
On a daily basis, SDSI closed higher 58% of trading days. The best single day was Apr 11, 2025 with a return of +1.0%, while the worst single day was Apr 7, 2025 at -1.1%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0.50% | 0.40% | -0.66% | 0.73% | 0.31% | -0.02% | 1.28% | ||||||
| 2025 | 0.70% | 0.82% | 0.20% | 0.43% | 0.41% | 0.80% | 0.19% | 0.96% | 0.53% | 0.40% | 0.43% | 0.48% | 6.54% |
| 2024 | 0.52% | -0.23% | 0.79% | -0.19% | 0.81% | 0.63% | 1.33% | 1.02% | 0.94% | -0.64% | 0.34% | 0.17% | 5.63% |
| 2023 | 1.53% | -0.58% | 0.89% | 0.46% | -0.31% | -0.23% | 0.46% | 0.58% | -0.14% | 0.13% | 1.58% | 1.38% | 5.88% |
| 2022 | 0.04% | 1.53% | 0.42% | 1.99% |
Benchmark Metrics
American Century Short Duration Strategic Income ETF has an annualized alpha of 5.03%, beta of 0.04, and R2 of 0.06 versus S&P 500 Index. Calculated based on daily prices since October 13, 2022.
- This ETF captured 13.80% of S&P 500 Index gains and tended to rise during its downturns (downside capture of -4.03%) - a profile typical of hedging or uncorrelated assets.
- Beta of 0.04 may look defensive, but with R2 of 0.06 this ETF is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this ETF's risk.
- R2 of 0.06 means this ETF moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.
- Alpha
- 5.03%
- Beta
- 0.04
- R²
- 0.06
- Upside Capture
- 13.80%
- Downside Capture
- -4.03%
Expense Ratio
SDSI has an expense ratio of 0.33%, placing it in the medium range.
Return for Risk
Risk / Return Rank
SDSI ranks 90 for risk / return — in the top 90% of ETFs on our site. This means strong returns relative to risk — exactly what professional investors look for. Well-suited for investors who want to maximize return per unit of risk.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for American Century Short Duration Strategic Income ETF (SDSI) and compare them to S&P 500 Index.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| SDSI | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.02 | ||
| Sortino ratioReturn per unit of downside risk | +1.88 | ||
| Omega ratioGain probability vs. loss probability | 1.62 | 1.37 | +0.25 |
| Calmar ratioReturn relative to maximum drawdown | 4.20 | 2.78 | +1.41 |
| Martin ratioReturn relative to average drawdown | 19.76 | 12.44 | +7.32 |
Dividends
Dividend History
American Century Short Duration Strategic Income ETF provided a 4.79% dividend yield over the last twelve months, with an annual payout of $2.45 per share.
| Period | TTM | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|---|
| Dividend | $2.45 | $2.53 | $2.79 | $2.73 | $0.50 |
Dividend yield | 4.79% | 4.91% | 5.49% | 5.37% | 0.98% |
Monthly Dividends
The table displays the monthly dividend distributions for American Century Short Duration Strategic Income ETF. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.22 | $0.20 | $0.22 | $0.18 | $0.18 | $1.00 | ||||||
| 2025 | $0.00 | $0.20 | $0.22 | $0.21 | $0.23 | $0.22 | $0.21 | $0.23 | $0.22 | $0.16 | $0.21 | $0.44 | $2.53 |
| 2024 | $0.00 | $0.24 | $0.22 | $0.20 | $0.25 | $0.22 | $0.19 | $0.24 | $0.26 | $0.24 | $0.23 | $0.49 | $2.79 |
| 2023 | $0.00 | $0.16 | $0.20 | $0.23 | $0.21 | $0.23 | $0.21 | $0.20 | $0.22 | $0.28 | $0.23 | $0.57 | $2.73 |
| 2022 | $0.09 | $0.41 | $0.50 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the American Century Short Duration Strategic Income ETF. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the American Century Short Duration Strategic Income ETF was 1.29%, occurring on Jul 6, 2023. Recovery took 66 trading sessions.
The current American Century Short Duration Strategic Income ETF drawdown is 0.14%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
2023 pullback2023 | -1.29%Jul 2023 | 2mo 2d | 3mo 5d | 5mo 7dMay 2023 - Oct 2023 |
2025 selloff2025 | -1.29%Apr 2025 | 3d | 21d | 24dApr 2025 - Apr 2025 |
2026 pullback2026 | -1.17%Mar 2026 | 1mo | 21d | 1mo 21dFeb 2026 - Apr 2026 |
2023 pullback2023 | -1.17%Mar 2023 | 1mo 3d | 26d | 1mo 29dFeb 2023 - Apr 2023 |
2024 pullback2024 | -0.95%Nov 2024 | 1mo 13d | 2mo 5d | 3mo 18dSep 2024 - Jan 2025 |
Drawdown Indicators
| SDSI | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -1.29% | -56.78% | +55.49% |
Max Drawdown (1Y)Largest decline over 1 year | -1.17% | -9.10% | +7.93% |
Max Drawdown (3Y)Largest decline over 3 years | -1.29% | -18.90% | +17.61% |
Max Drawdown (5Y)Largest decline over 5 years | — | -25.43% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.92% | — |
Current DrawdownCurrent decline from peak | -0.14% | -1.80% | +1.66% |
Average DrawdownAverage peak-to-trough decline | -0.24% | -10.71% | +10.47% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.25% | 2.03% | -1.78% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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