Brown Advisory Sustainable Growth ETF (BASG) Performance
BASG total return
Distributions reinvested · as of Oct 23, 2026- YTD
- +8.8% since Dec 31, 2025
- 1 year
- +5.0% total return
- Since first price
- +11.1% since 2025
BASG trailing returns vs SPY, QQQ, AGG
| Period | BASG total return | Price only | S&P 500 (SPY) | Nasdaq-100 (QQQ) | U.S. bonds (AGG) |
|---|---|---|---|---|---|
| 1 month | +0.0% | +0.0% | −1.0% | −5.0% | +0.9% |
| 3 months | +7.2% | +7.2% | +3.2% | +1.9% | −0.4% |
| 6 months | +12.6% | +12.6% | +7.8% | +8.4% | −1.5% |
| YTD | +8.8% | +8.8% | +12.3% | +15.1% | −1.0% |
| 1 year | +5.0% | +5.0% | +14.4% | +15.9% | −1.1% |
| Since inceptionJun 16, 2025 | +11.1% | +11.1% | — | — | — |
Total return from adjusted closes (distributions reinvested, before tax). Periods of 3 years or more are also shown annualized. Price only excludes distributions.
Growth of $10,000: BASG vs SPY
From Jun 16, 2025: BASG grew to $11,106, SPY to $12,819.
Year-end values with distributions reinvested, no taxes or trading costs. Start: first common trading day of both funds.
BASG returns by calendar year
2026 is year to date.
BASG annual returns table
| Year | BASG | Largest drop | SPY | QQQ | AGG |
|---|---|---|---|---|---|
| 2026YTD | +8.8% | −16.9% | +12.3% | +15.1% | −1.0% |
Largest drop = deepest fall from a high within that calendar year.
Calendar-year return vs largest drop within the year
Most years include a sizable fall at some point even when the year ends higher.
BASG largest drawdowns
Now 3.9% below the high| Peak | Decline | Bottom | Recovered | Fall | Underwater |
|---|---|---|---|---|---|
| Oct 27, 2025 | −19.3% | Mar 27, 2026 | Jun 1, 2026 | 5 months | 7 months |
Declines from a closing high (distributions reinvested) of 10% or more. Underwater = time from the peak until the old high was regained.
BASG risk statistics
| Statistic | Since 2025 |
|---|---|
| Annualized return | +6.3% |
| Volatility (annualized) | 14.9% |
| Sharpe ratio | 0.23 |
| Sortino ratio | 0.41 |
| Best month | +10.2% |
| Worst month | −4.6% |
| Best 12 months | +10.0% |
| Worst 12 months | +1.6% |
| Positive months | 47% |
| Beta vs S&P 500 | — |
| Correlation with S&P 500 | — |
From monthly total returns. Sharpe and Sortino use 1–3 month T-bills (BIL) as the risk-free rate, so they need history from 2007 on.
BASG rolling returns
| Holding period | Periods | Worst | Median | Best | Positive |
|---|---|---|---|---|---|
| 1-year | 5 | +1.6% | +4.7% | +10.0% | 100% |
Every holding period starting at a month-end since 2025. Returns for 3 years and longer are annualized.
BASG performance overview
Brown Advisory Sustainable Growth ETF (BASG) returned +5.0% over the past year, with distributions reinvested. Since its first recorded price on Jun 16, 2025 it has returned +11.1%. Over the same year S&P 500 (SPY) returned +14.4%.
The deepest decline was −19.3%, from Oct 27, 2025 to Mar 27, 2026, and it took 2 months to get back to the old high. Volatility has been 14.9% a year.
Related: BASG chart, BASG holdings, BASG valuation. See the BASG overview for the latest quote and fund facts.
BASG performance FAQ
What is the BASG return over the past year?
BASG returned +5.0% over the 12 months to October 23, 2026, including reinvested distributions. On price alone it rose 5.0%.
How much would $10,000 invested in BASG be worth?
$10,000 invested in BASG at its first recorded close on June 16, 2025 would be worth about $11,106 on October 23, 2026 with distributions reinvested.
What is the biggest drawdown of BASG?
The largest peak-to-trough decline was −19.3% between October 27, 2025 and March 27, 2026. It recovered to the old high on June 1, 2026, 2 months after the bottom.
How volatile is BASG?
Over the past history BASG had an annualized volatility of 14.9% and a Sharpe ratio of 0.23 (excess return over 1–3 month T-bills per unit of risk).