ACHR vs. KTOS

Last updated Jun 9, 2026

ACHR (Archer Aviation Inc.) and KTOS (Kratos Defense & Security Solutions, Inc.) are both stocks. Both operate in the Aerospace & Defense industry within the Industrials sector. Over the past 5 years, ACHR returned -10.82%/yr vs 16.85%/yr for KTOS. At a 0.36 correlation, their price movements are largely independent.

Performance

ACHR vs. KTOS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Archer Aviation Inc. (ACHR) and Kratos Defense & Security Solutions, Inc. (KTOS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with ACHR having a -23.80% return and KTOS slightly lower at -23.95%.

ACHR

• 1D: 3.43%
• 1M: -11.57%
• YTD: -23.80%
• 6M: -33.45%
• 1Y: -43.77%
• 3Y*: 20.81%
• 5Y*: -10.82%
• 10Y*: —

KTOS

• 1D: -1.35%
• 1M: -0.28%
• YTD: -23.95%
• 6M: -25.06%
• 1Y: 42.65%
• 3Y*: 59.41%
• 5Y*: 16.85%
• 10Y*: 30.73%

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

ACHR vs. KTOS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
ACHR Archer Aviation Inc.	-23.80%	-22.87%	58.79%	228.34%	-69.04%	-39.96%	-0.89%
KTOS Kratos Defense & Security Solutions, Inc.	-23.95%	187.76%	30.01%	96.61%	-46.80%	-29.27%	9.33%

Correlation

The correlation between ACHR and KTOS is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (3Y) Calculated over the trailing 3-year period	0.38
Correlation (5Y) Calculated over the trailing 5-year period	0.37
Correlation (All Time) Calculated using the full available price history since Dec 18, 2020	0.36

The correlation between ACHR and KTOS shifts across timeframes, from 0.36 (all time) to 0.49 (1 year), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap ACHR : $4.39B KTOS : $10.36B
EPS ACHR : -$1.36 KTOS : $0.17
PS Ratio ACHR : 1.65K KTOS : 6.96
PB Ratio ACHR : 2.11 KTOS : 3.04
Total Revenue (TTM) ACHR : $1.90M KTOS : $1.42B
Gross Profit (TTM) ACHR : $300.00K KTOS : $259.40M
EBITDA (TTM) ACHR : -$712.00M KTOS : $78.30M

Return for Risk

ACHR vs. KTOS — Risk / Return Rank

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

ACHR

ACHR Risk / Return Rank: 18
ACHR Sharpe Ratio Rank: 15
ACHR Sortino Ratio Rank: 18
ACHR Omega Ratio Rank: 19
ACHR Calmar Ratio Rank: 17
ACHR Martin Ratio Rank: 19

KTOS

KTOS Risk / Return Rank: 60
KTOS Sharpe Ratio Rank: 62
KTOS Sortino Ratio Rank: 62
KTOS Omega Ratio Rank: 59
KTOS Calmar Ratio Rank: 58
KTOS Martin Ratio Rank: 57

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.

ACHR vs. KTOS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Archer Aviation Inc. (ACHR) and Kratos Defense & Security Solutions, Inc. (KTOS). 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.

	ACHR	KTOS	Difference
Sharpe ratio: Return per unit of total volatility	-0.62	0.60	-1.21
Sortino ratio: Return per unit of downside risk	-0.65	1.28	-1.93
Omega ratio: Gain probability vs. loss probability	0.93	1.15	-0.22
Calmar ratio: Return relative to maximum drawdown	-0.69	0.71	-1.40
Martin ratio: Return relative to average drawdown	-1.08	1.47	-2.56
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACHR vs. KTOS - Sharpe Ratio Comparison

The current ACHR Sharpe Ratio is -0.62, which is lower than the KTOS Sharpe Ratio of 0.60. The chart below compares the historical Sharpe Ratios of ACHR and KTOS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	ACHR	KTOS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.62	0.60	-1.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.13	0.32	-0.45
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.61	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.12	-0.14	+0.02

Drawdowns

ACHR vs. KTOS - Drawdown Comparison

The maximum ACHR drawdown since its inception was -90.49%, smaller than the maximum KTOS drawdown of -99.81%. Use the drawdown chart below to compare losses from any high point for ACHR and KTOS.

Drawdown Indicators

	ACHR	KTOS	Difference
Max Drawdown Largest peak-to-trough decline	-90.49%	-99.81%	+9.32%
Max Drawdown (1Y) Largest decline over 1 year	-63.78%	-60.15%	-3.63%
Max Drawdown (3Y) Largest decline over 3 years	-63.78%	-60.15%	-3.63%
Max Drawdown (5Y) Largest decline over 5 years	-84.00%	-69.39%	-14.61%
Max Drawdown (10Y) Largest decline over 10 years	—	-72.74%	—
Current Drawdown Current decline from peak	-66.57%	-96.34%	+29.77%
Average Drawdown Average peak-to-trough decline	-62.50%	-95.94%	+33.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	40.38%	29.04%	+11.34%

Volatility

ACHR vs. KTOS - Volatility Comparison

The current volatility for Archer Aviation Inc. (ACHR) is 19.42%, while Kratos Defense & Security Solutions, Inc. (KTOS) has a volatility of 23.93%. This indicates that ACHR experiences smaller price fluctuations and is considered to be less risky than KTOS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACHR	KTOS	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.42%	23.93%	-4.51%
Volatility (6M) Calculated over the trailing 6-month period	43.60%	56.47%	-12.87%
Volatility (1Y) Calculated over the trailing 1-year period	71.28%	71.96%	-0.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	84.22%	52.22%	+32.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	82.17%	50.78%	+31.39%

Dividends

ACHR vs. KTOS - Dividend Comparison

Neither ACHR nor KTOS has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both ACHR and KTOS in my portfolio?

ACHR and KTOS have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ACHR or KTOS?

KTOS has higher volatility (23.93%) compared to ACHR (19.42%). In terms of maximum drawdown, ACHR dropped -90.49% vs KTOS's -99.81%.

Which has better risk-adjusted returns?

KTOS currently has the higher Sharpe Ratio (0.60 vs -0.62), 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.