AMPH vs. TLT
AMPH (Amphastar Pharmaceuticals, Inc.) is a stock, while TLT (iShares 20+ Year Treasury Bond ETF) is Government Bonds fund tracking the ICE U.S. Treasury 20+ Year Bond Index. Over the past 10 years, AMPH returned 2.48%/yr vs -1.75%/yr for TLT. At a correlation of -0.07, they often move in opposite directions.
Performance
AMPH vs. TLT - Performance Comparison
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Returns By Period
In the year-to-date period, AMPH achieves a -24.98% return, which is significantly lower than TLT's 0.27% return. Over the past 10 years, AMPH has outperformed TLT with an annualized return of 2.48%, while TLT has yielded a comparatively lower -1.75% annualized return.
AMPH
- 1D
- -2.14%
- 1M
- 16.13%
- YTD
- -24.98%
- 6M
- -20.50%
- 1Y
- -22.19%
- 3Y*
- -24.72%
- 5Y*
- 0.17%
- 10Y*
- 2.48%
TLT
- 1D
- -0.24%
- 1M
- 1.40%
- YTD
- 0.27%
- 6M
- 0.45%
- 1Y
- 3.88%
- 3Y*
- -1.38%
- 5Y*
- -6.53%
- 10Y*
- -1.75%
AMPH vs. TLT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AMPH Amphastar Pharmaceuticals, Inc. | -24.98% | -27.88% | -39.97% | 120.74% | 20.31% | 15.81% | 4.25% | -3.07% | 3.43% | 4.45% |
TLT iShares 20+ Year Treasury Bond ETF | 0.27% | 4.25% | -8.05% | 2.77% | -31.23% | -4.60% | 18.15% | 14.12% | -1.61% | 9.18% |
Correlation
The correlation between AMPH and TLT is 0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.08 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.04 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.01 |
Correlation (10Y) Calculated over the trailing 10-year period | -0.06 |
Correlation (All Time) Calculated using the full available price history since Jun 25, 2014 | -0.07 |
The correlation between AMPH and TLT shifts across timeframes, from -0.07 (all time) to 0.08 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
AMPH vs. TLT — Risk / Return Rank
AMPH
TLT
AMPH vs. TLT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Amphastar Pharmaceuticals, Inc. (AMPH) and iShares 20+ Year Treasury Bond ETF (TLT). 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.
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.
| AMPH | TLT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.75 | ||
| Sortino ratioReturn per unit of downside risk | -0.80 | ||
| Omega ratioGain probability vs. loss probability | 0.95 | 1.06 | -0.10 |
| Calmar ratioReturn relative to maximum drawdown | -0.53 | 0.38 | -0.91 |
| Martin ratioReturn relative to average drawdown | -1.07 | 0.92 | -2.00 |
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Drawdowns
AMPH vs. TLT - Drawdown Comparison
The maximum AMPH drawdown since its inception was -74.05%, which is greater than TLT's maximum drawdown of -48.35%. Use the drawdown chart below to compare losses from any high point for AMPH and TLT.
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Drawdown Indicators
| AMPH | TLT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -74.05% | -48.35% | -25.70% |
Max Drawdown (1Y)Largest decline over 1 year | -45.25% | -7.58% | -37.67% |
Max Drawdown (3Y)Largest decline over 3 years | -74.05% | -19.18% | -54.87% |
Max Drawdown (5Y)Largest decline over 5 years | -74.05% | -43.70% | -30.35% |
Max Drawdown (10Y)Largest decline over 10 years | -74.05% | -48.35% | -25.70% |
Current DrawdownCurrent decline from peak | -69.09% | -40.12% | -28.97% |
Average DrawdownAverage peak-to-trough decline | -24.08% | -13.84% | -10.24% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 22.54% | 3.14% | +19.40% |
Volatility
AMPH vs. TLT - Volatility Comparison
Amphastar Pharmaceuticals, Inc. (AMPH) has a higher volatility of 12.20% compared to iShares 20+ Year Treasury Bond ETF (TLT) at 2.83%. This indicates that AMPH's price experiences larger fluctuations and is considered to be riskier than TLT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AMPH | TLT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.20% | 2.83% | +9.37% |
Volatility (6M)Calculated over the trailing 6-month period | 46.17% | 6.64% | +39.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 53.78% | 9.68% | +44.10% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 45.07% | 15.85% | +29.22% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 42.71% | 14.91% | +27.80% |
Dividends
AMPH vs. TLT - Dividend Comparison
AMPH has not paid dividends to shareholders, while TLT's dividend yield for the trailing twelve months is around 4.56%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AMPH Amphastar 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% |
TLT iShares 20+ Year Treasury Bond ETF | 4.56% | 4.43% | 4.30% | 3.38% | 2.67% | 1.50% | 1.50% | 2.27% | 2.63% | 2.43% | 2.60% | 2.61% |
Frequently Asked Questions
AMPH and TLT have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AMPH has higher volatility (12.20%) compared to TLT (2.83%). In terms of maximum drawdown, AMPH dropped -74.05% vs TLT's -48.35%.
TLT currently has the higher Sharpe Ratio (0.30 vs -0.45), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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