JOBY vs. SPY
JOBY (Joby Aviation, Inc.) is a stock, while SPY (State Street SPDR S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 3 years, JOBY returned -8.77%/yr vs 20.07%/yr for SPY. At a 0.50 correlation, their price movements are largely independent.
Performance
JOBY vs. SPY - Performance Comparison
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Returns By Period
In the year-to-date period, JOBY achieves a -43.33% return, which is significantly lower than SPY's 10.45% return.
JOBY
- 1D
- -3.11%
- 1M
- -18.25%
- 6M
- -51.46%
- YTD
- -43.33%
- 1Y
- -37.87%
- 3Y*
- -8.77%
- 5Y*
- —
- 10Y*
- —
SPY
- 1D
- -0.77%
- 1M
- 1.26%
- 6M
- 8.34%
- YTD
- 10.45%
- 1Y
- 21.46%
- 3Y*
- 20.07%
- 5Y*
- 12.94%
- 10Y*
- 15.08%
JOBY vs. SPY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
JOBY Joby Aviation, Inc. | -43.33% | 62.36% | 22.26% | 98.51% | -54.11% | -31.26% |
SPY State Street SPDR S&P 500 ETF | 10.45% | 17.72% | 24.89% | 26.18% | -18.18% | 8.01% |
Correlation
The correlation between JOBY and SPY is 0.55, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.55 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.51 |
Correlation (All Time) Calculated using the full available price history since Aug 11, 2021 | 0.50 |
The correlation between JOBY and SPY has been stable across timeframes, ranging from 0.50 to 0.55 - a consistent structural relationship.
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Return for Risk
JOBY vs. SPY — Risk / Return Rank
JOBY
SPY
JOBY vs. SPY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Joby Aviation, Inc. (JOBY) and State Street SPDR S&P 500 ETF (SPY). 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.
| JOBY | SPY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.21 | ||
| Sortino ratioReturn per unit of downside risk | -2.75 | ||
| Omega ratioGain probability vs. loss probability | 0.96 | 1.31 | -0.35 |
| Calmar ratioReturn relative to maximum drawdown | -0.60 | 2.43 | -3.03 |
| Martin ratioReturn relative to average drawdown | -0.95 | 10.57 | -11.52 |
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Drawdowns
JOBY vs. SPY - Drawdown Comparison
The maximum JOBY drawdown since its inception was -76.27%, which is greater than SPY's maximum drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for JOBY and SPY.
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Drawdown Indicators
| JOBY | SPY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -76.27% | -55.19% | -21.08% |
Max Drawdown (1Y)Largest decline over 1 year | -63.32% | -8.88% | -54.44% |
Max Drawdown (3Y)Largest decline over 3 years | -63.32% | -18.76% | -44.56% |
Max Drawdown (5Y)Largest decline over 5 years | — | -24.50% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.72% | — |
Current DrawdownCurrent decline from peak | -63.32% | -1.12% | -62.20% |
Average DrawdownAverage peak-to-trough decline | -50.46% | -9.02% | -41.44% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 39.98% | 2.03% | +37.95% |
Volatility
JOBY vs. SPY - Volatility Comparison
Joby Aviation, Inc. (JOBY) has a higher volatility of 18.31% compared to State Street SPDR S&P 500 ETF (SPY) at 4.26%. This indicates that JOBY's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| JOBY | SPY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 18.31% | 4.26% | +14.05% |
Volatility (6M)Calculated over the trailing 6-month period | 50.01% | 10.01% | +40.00% |
Volatility (1Y)Calculated over the trailing 1-year period | 76.71% | 12.60% | +64.11% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 80.47% | 17.17% | +63.30% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 80.47% | 17.93% | +62.54% |
Dividends
JOBY vs. SPY - Dividend Comparison
JOBY has not paid dividends to shareholders, while SPY's dividend yield for the trailing twelve months is around 1.00%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
JOBY Joby Aviation, 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% |
SPY State Street SPDR S&P 500 ETF | 1.00% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
Frequently Asked Questions
JOBY and SPY have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
JOBY has higher volatility (18.31%) compared to SPY (4.26%). In terms of maximum drawdown, JOBY dropped -76.27% vs SPY's -55.19%.
SPY currently has the higher Sharpe Ratio (1.71 vs -0.50), 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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