ProShares Short MidCap400 (MYY) Performance
MYY total return
Distributions reinvested · as of Oct 23, 2026- YTD
- −6.5% since Dec 31, 2025
- 1 year
- −6.7% total return
- 5 years
- −4.1% a year
- 10 years
- −10.4% a year
- Since first price
- −11.2% a year since 2006
MYY trailing returns vs SPY, QQQ, AGG
| Period | MYY total return | Price only | S&P 500 (SPY) | Nasdaq-100 (QQQ) | U.S. bonds (AGG) |
|---|---|---|---|---|---|
| 1 month | +1.5% | +1.5% | −1.0% | −5.0% | +0.9% |
| 3 months | +5.3% | +4.5% | +3.2% | +1.9% | −0.4% |
| 6 months | +2.0% | +0.4% | +7.8% | +8.4% | −1.5% |
| YTD | −6.5% | −8.6% | +12.3% | +15.1% | −1.0% |
| 1 year | −6.7% | −9.7% | +14.4% | +15.9% | −1.1% |
| 3 years | −28.6%−10.6%/yr | −37.3% | +87.4%+23.3%/yr | +101.4%+26.3%/yr | +16.6%+5.2%/yr |
| 5 years | −19.1%−4.1%/yr | −31.2% | +79.3%+12.4%/yr | +94.0%+14.2%/yr | −0.8%−0.2%/yr |
| 10 years | −66.5%−10.4%/yr | −72.0% | +315.9%+15.3%/yr | +538.9%+20.4%/yr | +14.0%+1.3%/yr |
| 15 years | −85.1%−11.9%/yr | −87.6% | +696.0%+14.8%/yr | +1,299.3%+19.2%/yr | +32.2%+1.9%/yr |
| 20 years | −90.8%−11.3%/yr | −94.0% | +696.9%+10.9%/yr | +1,839.9%+16.0%/yr | +79.6%+3.0%/yr |
| Since inceptionJun 21, 2006 | −91.2%−11.2%/yr | −94.2% | — | — | — |
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: MYY vs SPY
From Jun 21, 2006: MYY grew to $883, SPY to $88,014.
Year-end values with distributions reinvested, no taxes or trading costs. Start: first common trading day of both funds.
MYY returns by calendar year
3 of 19 full years positive. Best 2008 (+34.0%), worst 2009 (−35.1%). 2026 is year to date.
MYY annual returns table
| Year | MYY | Largest drop | SPY | QQQ | AGG |
|---|---|---|---|---|---|
| 2026YTD | −6.5% | −15.5% | +12.3% | +15.1% | −1.0% |
| 2025 | −4.1% | −23.6% | +17.7% | +20.8% | +7.2% |
| 2024 | −7.1% | −17.8% | +24.9% | +25.6% | +1.3% |
| 2023 | −9.5% | −16.8% | +26.2% | +54.9% | +5.7% |
| 2022 | +10.2% | −17.0% | −18.2% | −32.6% | −13.0% |
| 2021 | −23.0% | −25.5% | +28.7% | +27.4% | −1.8% |
| 2020 | −25.9% | −52.8% | +18.3% | +48.6% | +7.5% |
| 2019 | −20.0% | −21.6% | +31.2% | +39.0% | +8.5% |
| 2018 | +12.7% | −11.9% | −4.6% | −0.1% | +0.1% |
| 2017 | −14.6% | −14.3% | +21.7% | +32.7% | +3.6% |
| 2016 | −19.3% | −29.7% | +12.0% | +7.1% | +2.4% |
| 2015 | −0.8% | −10.3% | +1.2% | +9.4% | +0.5% |
| 2014 | −11.3% | −17.1% | +13.5% | +19.2% | +6.0% |
| 2013 | −27.1% | −25.1% | +32.3% | +36.6% | −2.0% |
| 2012 | −17.8% | −17.9% | +16.0% | +18.1% | +3.8% |
| 2011 | −6.9% | −19.6% | +1.9% | +3.4% | +7.7% |
| 2010 | −25.4% | −28.7% | +15.1% | +19.9% | +6.4% |
| 2009 | −35.1% | −50.1% | +26.4% | +54.7% | +3.0% |
| 2008 | +34.0% | −26.0% | −36.8% | −41.7% | +7.9% |
| 2007 | −1.4% | −11.5% | +5.1% | +19.0% | +6.6% |
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.
MYY largest drawdowns
Now 94.8% below the high| Peak | Decline | Bottom | Recovered | Fall | Underwater |
|---|---|---|---|---|---|
| Nov 20, 2008 | −95.3% | Aug 14, 2026 | not yet | 17.7 years | 17.9 years so far |
| Oct 27, 2008 | −18.6% | Nov 4, 2008 | Nov 19, 2008 | 8 days | 23 days |
| Jul 21, 2006 | −18.4% | Jun 4, 2007 | Jan 17, 2008 | 10 months | 1.5 years |
| Mar 10, 2008 | −17.2% | Jun 5, 2008 | Sep 29, 2008 | 3 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.
MYY risk statistics
| Statistic | 3 years | 5 years | 10 years | Since 2006 |
|---|---|---|---|---|
| Annualized return | −8.9% | −5.3% | −10.2% | −11.2% |
| Volatility (annualized) | 15.4% | 18.0% | 18.1% | 17.6% |
| Sharpe ratio | -0.81 | -0.41 | -0.63 | -0.66 |
| Sortino ratio | -0.99 | -0.54 | -0.81 | -0.85 |
| Best month | +8.2% | +9.9% | +14.0% | +21.2% |
| Worst month | −7.9% | −10.1% | −14.6% | −14.6% |
| Best 12 months | +8.2% | +12.1% | +18.2% | +47.7% |
| Worst 12 months | −20.8% | −20.8% | −50.3% | −50.3% |
| Positive months | 44% | 48% | 39% | 37% |
| Beta vs S&P 500 | -0.97 | -0.99 | -1.05 | — |
| Correlation with S&P 500 | -0.79 | -0.87 | -0.89 | — |
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.
MYY rolling returns
| Holding period | Periods | Worst | Median | Best | Positive |
|---|---|---|---|---|---|
| 1-year | 233 | −50.3% | −11.3% | +47.7% | 21% |
| 3-year (a year) | 209 | −29.7% | −12.0% | +3.0% | 1% |
| 5-year (a year) | 185 | −25.7% | −12.6% | −3.3% | 0% |
| 10-year (a year) | 125 | −17.9% | −12.9% | −9.4% | 0% |
Every holding period starting at a month-end since 2006. Returns for 3 years and longer are annualized.
MYY performance overview
ProShares Short MidCap400 (MYY) returned −6.7% over the past year and −10.4% a year over ten years, with distributions reinvested. Since its first recorded price in 2006 it has returned −11.2% a year, turning $10,000 into about $883. Over the same year S&P 500 (SPY) returned +14.4%.
The deepest decline was −95.3%, from Nov 20, 2008 to Aug 14, 2026; the fund has not yet regained that high. MYY finished 3 of its 19 full calendar years with a gain; the best year was 2008 (+34.0%) and the worst 2009 (−35.1%). Volatility has been 17.6% a year.
Related: MYY chart, MYY dividends. See the MYY overview for the latest quote and fund facts.
MYY performance FAQ
What is the MYY return over the past year?
MYY returned −6.7% over the 12 months to October 23, 2026, including reinvested distributions. On price alone it fell 9.7%.
What is the average annual return of MYY?
MYY has returned −4.1% a year over 5 years, −10.4% a year over 10 years, −11.2% a year since June 21, 2006 (total return, distributions reinvested).
How much would $10,000 invested in MYY be worth?
$10,000 invested in MYY at its first recorded close on June 21, 2006 would be worth about $883 on October 23, 2026 with distributions reinvested.
What was the worst year for MYY?
The worst calendar year was 2009, with a total return of −35.1%. The best was 2008 at +34.0%.
What is the biggest drawdown of MYY?
The largest peak-to-trough decline was −95.3% between November 20, 2008 and August 14, 2026. It has not yet recovered to that high; it is 94.8% below its peak.
How volatile is MYY?
Over the past 3 years MYY had an annualized volatility of 15.4% and a Sharpe ratio of -0.81 (excess return over 1–3 month T-bills per unit of risk).