IRWD vs. VOO
Compare and contrast key facts about Ironwood Pharmaceuticals, Inc. (IRWD) and Vanguard S&P 500 ETF (VOO).
VOO is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Index. It was launched on Sep 7, 2010.
Performance
IRWD vs. VOO - Performance Comparison
Loading graphics...
IRWD vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IRWD Ironwood Pharmaceuticals, Inc. | 4.15% | -23.93% | -61.28% | -7.67% | 6.26% | 2.37% | -14.43% | 28.47% | -30.89% | -1.96% |
VOO Vanguard S&P 500 ETF | -4.42% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Returns By Period
In the year-to-date period, IRWD achieves a 4.15% return, which is significantly higher than VOO's -4.42% return. Over the past 10 years, IRWD has underperformed VOO with an annualized return of -10.96%, while VOO has yielded a comparatively higher 14.05% annualized return.
IRWD
- 1D
- 8.67%
- 1M
- 2.63%
- YTD
- 4.15%
- 6M
- 167.94%
- 1Y
- 138.78%
- 3Y*
- -30.64%
- 5Y*
- -20.25%
- 10Y*
- -10.96%
VOO
- 1D
- 2.86%
- 1M
- -5.01%
- YTD
- -4.42%
- 6M
- -1.84%
- 1Y
- 17.67%
- 3Y*
- 18.27%
- 5Y*
- 11.75%
- 10Y*
- 14.05%
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
IRWD vs. VOO — Risk / Return Rank
IRWD
VOO
IRWD vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Ironwood Pharmaceuticals, Inc. (IRWD) and Vanguard S&P 500 ETF (VOO). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| IRWD | VOO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.19 | 0.98 | +0.21 |
Sortino ratioReturn per unit of downside risk | 2.27 | 1.50 | +0.77 |
Omega ratioGain probability vs. loss probability | 1.27 | 1.23 | +0.04 |
Calmar ratioReturn relative to maximum drawdown | 2.42 | 1.53 | +0.89 |
Martin ratioReturn relative to average drawdown | 4.56 | 7.29 | -2.73 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading graphics...
Sharpe Ratios by Period
| IRWD | VOO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.19 | 0.98 | +0.21 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.28 | 0.70 | -0.99 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.18 | 0.78 | -0.97 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.13 | 0.83 | -0.96 |
Correlation
The correlation between IRWD and VOO is 0.36, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
IRWD vs. VOO - Dividend Comparison
IRWD has not paid dividends to shareholders, while VOO's dividend yield for the trailing twelve months is around 1.19%.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IRWD Ironwood Pharmaceuticals, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
VOO Vanguard S&P 500 ETF | 1.19% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Drawdowns
IRWD vs. VOO - Drawdown Comparison
The maximum IRWD drawdown since its inception was -97.31%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for IRWD and VOO.
Loading graphics...
Drawdown Indicators
| IRWD | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -97.31% | -33.99% | -63.32% |
Max Drawdown (1Y)Largest decline over 1 year | -60.67% | -11.98% | -48.69% |
Max Drawdown (5Y)Largest decline over 5 years | -96.33% | -24.52% | -71.81% |
Max Drawdown (10Y)Largest decline over 10 years | -97.31% | -33.99% | -63.32% |
Current DrawdownCurrent decline from peak | -83.34% | -6.29% | -77.05% |
Average DrawdownAverage peak-to-trough decline | -38.79% | -3.72% | -35.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 32.67% | 2.52% | +30.15% |
Volatility
IRWD vs. VOO - Volatility Comparison
Ironwood Pharmaceuticals, Inc. (IRWD) has a higher volatility of 21.52% compared to Vanguard S&P 500 ETF (VOO) at 5.29%. This indicates that IRWD's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| IRWD | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 21.52% | 5.29% | +16.23% |
Volatility (6M)Calculated over the trailing 6-month period | 76.33% | 9.44% | +66.89% |
Volatility (1Y)Calculated over the trailing 1-year period | 117.03% | 18.10% | +98.93% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 71.72% | 16.82% | +54.90% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 60.32% | 17.99% | +42.33% |