STX vs. JOBY

Last updated Jun 13, 2026

STX (Seagate Technology plc) and JOBY (Joby Aviation, Inc.) are both stocks. STX operates in Computer Hardware (Technology), while JOBY operates in Airports & Air Services (Industrials). Over the past 3 years, STX returned 149.80%/yr vs 5.42%/yr for JOBY. At a 0.32 correlation, their price movements are largely independent.

Performance

STX vs. JOBY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Seagate Technology plc (STX) and Joby Aviation, Inc. (JOBY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, STX achieves a 238.67% return, which is significantly higher than JOBY's -30.68% return.

STX

• 1D: 7.25%
• 1M: 13.91%
• YTD: 238.67%
• 6M: 225.10%
• 1Y: 648.03%
• 3Y*: 149.80%
• 5Y*: 62.01%
• 10Y*: 51.08%

JOBY

• 1D: -2.24%
• 1M: -17.27%
• YTD: -30.68%
• 6M: -38.38%
• 1Y: 3.16%
• 3Y*: 5.42%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

STX vs. JOBY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
STX Seagate Technology plc	238.67%	225.26%	4.06%	69.12%	-51.42%	23.60%
JOBY Joby Aviation, Inc.	-30.68%	62.36%	22.26%	98.51%	-54.11%	-31.26%

Correlation

The correlation between STX and JOBY is 0.28, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.28
Correlation (3Y) Calculated over the trailing 3-year period	0.29
Correlation (All Time) Calculated using the full available price history since Aug 11, 2021	0.32

Fundamentals

Market Cap STX : $212.28B JOBY : $8.63B
EPS STX : $10.58 JOBY : -$1.10
PS Ratio STX : 19.01 JOBY : 102.48
PB Ratio STX : 193.86 JOBY : 4.41
Total Revenue (TTM) STX : $11.01B JOBY : $77.67M
Gross Profit (TTM) STX : $4.57B JOBY : $8.72M
EBITDA (TTM) STX : $2.59B JOBY : -$1.05B

Return for Risk

STX vs. JOBY — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

STX

STX Risk / Return Rank: 99
STX Sharpe Ratio Rank: 100
STX Sortino Ratio Rank: 99
STX Omega Ratio Rank: 98
STX Calmar Ratio Rank: 100
STX Martin Ratio Rank: 100

JOBY

JOBY Risk / Return Rank: 45
JOBY Sharpe Ratio Rank: 44
JOBY Sortino Ratio Rank: 48
JOBY Omega Ratio Rank: 46
JOBY Calmar Ratio Rank: 44
JOBY Martin Ratio Rank: 43

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

STX vs. JOBY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Seagate Technology plc (STX) and Joby Aviation, Inc. (JOBY). 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.

	STX	JOBY	Difference
Sharpe ratio: Return per unit of total volatility	10.19	0.04	+10.15
Sortino ratio: Return per unit of downside risk	6.34	0.67	+5.67
Omega ratio: Gain probability vs. loss probability	1.81	1.07	+0.74
Calmar ratio: Return relative to maximum drawdown	31.15	0.05	+31.10
Martin ratio: Return relative to average drawdown	90.13	0.09	+90.05

STX vs. JOBY - Sharpe Ratio Comparison

The current STX Sharpe Ratio is 10.19, which is higher than the JOBY Sharpe Ratio of 0.04. The chart below compares the historical Sharpe Ratios of STX and JOBY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

STX vs. JOBY - Drawdown Comparison

The maximum STX drawdown since its inception was -88.74%, which is greater than JOBY's maximum drawdown of -76.27%. Use the drawdown chart below to compare losses from any high point for STX and JOBY.

Drawdown Indicators

	STX	JOBY	Difference
Max Drawdown Largest peak-to-trough decline	-88.74%	-76.27%	-12.47%
Max Drawdown (1Y) Largest decline over 1 year	-21.00%	-61.06%	+40.06%
Max Drawdown (3Y) Largest decline over 3 years	-40.00%	-61.06%	+21.06%
Max Drawdown (5Y) Largest decline over 5 years	-56.99%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-56.99%	—	—
Current Drawdown Current decline from peak	-1.03%	-55.13%	+54.10%
Average Drawdown Average peak-to-trough decline	-26.44%	-50.36%	+23.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.24%	36.83%	-29.59%

Volatility

STX vs. JOBY - Volatility Comparison

The current volatility for Seagate Technology plc (STX) is 19.61%, while Joby Aviation, Inc. (JOBY) has a volatility of 22.37%. This indicates that STX experiences smaller price fluctuations and is considered to be less risky than JOBY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	STX	JOBY	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.61%	22.37%	-2.76%
Volatility (6M) Calculated over the trailing 6-month period	50.59%	51.20%	-0.61%
Volatility (1Y) Calculated over the trailing 1-year period	64.18%	78.50%	-14.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.86%	80.72%	-35.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.27%	80.72%	-38.45%

Dividends

STX vs. JOBY - Dividend Comparison

STX's dividend yield for the trailing twelve months is around 0.31%, while JOBY has not paid dividends to shareholders.

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%
STX Seagate Technology plc	0.31%	1.05%	3.27%	3.28%	5.32%	2.40%	4.21%	4.27%	6.53%	6.02%	6.60%	6.14%

Financials

Frequently Asked Questions

Can I hold both STX and JOBY in my portfolio?

STX and JOBY have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, STX or JOBY?

JOBY has higher volatility (22.37%) compared to STX (19.61%). In terms of maximum drawdown, STX dropped -88.74% vs JOBY's -76.27%.

Which has better risk-adjusted returns?

STX currently has the higher Sharpe Ratio (10.19 vs 0.04), 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.