ACIU vs. KTOS

Last updated Jul 14, 2026

ACIU (AC Immune SA) and KTOS (Kratos Defense & Security Solutions, Inc.) are both stocks. ACIU operates in Biotechnology (Healthcare), while KTOS operates in Aerospace & Defense (Industrials). Over the past 5 years, ACIU returned -20.28%/yr vs 12.07%/yr for KTOS. At a 0.17 correlation, their price movements are largely independent.

Performance

ACIU vs. KTOS - Performance Comparison

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

Returns By Period

In the year-to-date period, ACIU achieves a -21.97% return, which is significantly higher than KTOS's -38.14% return.

ACIU

• 1D: 2.51%
• 1M: 6.06%
• 6M: -30.40%
• YTD: -21.97%
• 1Y: 20.10%
• 3Y*: -6.94%
• 5Y*: -20.28%
• 10Y*: —

KTOS

• 1D: -2.55%
• 1M: -18.68%
• 6M: -60.16%
• YTD: -38.14%
• 1Y: -9.19%
• 3Y*: 52.73%
• 5Y*: 12.07%
• 10Y*: 26.02%

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

ACIU vs. KTOS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ACIU AC Immune SA	-21.97%	16.30%	-46.00%	145.10%	-58.79%	-4.26%	-39.32%	-9.84%	-26.17%	-1.39%
KTOS Kratos Defense & Security Solutions, Inc.	-38.14%	187.76%	30.01%	96.61%	-46.80%	-29.27%	52.30%	27.82%	33.05%	43.11%

Correlation

The correlation between ACIU and KTOS is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.20
Correlation (3Y) Calculated over the trailing 3-year period	0.16
Correlation (5Y) Calculated over the trailing 5-year period	0.19
Correlation (All Time) Calculated using the full available price history since Sep 23, 2016	0.17

Fundamentals

Market Cap ACIU : $249.35M KTOS : $8.81B
EPS ACIU : -CHF 0.66 KTOS : $0.17
PS Ratio ACIU : 53.71 KTOS : 5.81
PB Ratio ACIU : 6.24 KTOS : 2.47
Total Revenue (TTM) ACIU : CHF 3.70M KTOS : $1.42B
Gross Profit (TTM) ACIU : CHF 3.70M KTOS : $259.40M
EBITDA (TTM) ACIU : -CHF 64.45M KTOS : $78.30M

Return for Risk

ACIU vs. KTOS — Risk / Return Rank

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

ACIU

ACIU Risk / Return Rank: 56
ACIU Sharpe Ratio Rank: 55
ACIU Sortino Ratio Rank: 58
ACIU Omega Ratio Rank: 56
ACIU Calmar Ratio Rank: 56
ACIU Martin Ratio Rank: 56

KTOS

KTOS Risk / Return Rank: 41
KTOS Sharpe Ratio Rank: 40
KTOS Sortino Ratio Rank: 42
KTOS Omega Ratio Rank: 41
KTOS Calmar Ratio Rank: 41
KTOS Martin Ratio Rank: 41

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.

ACIU vs. KTOS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AC Immune SA (ACIU) 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.

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.

	ACIU	KTOS	Difference
Sharpe ratio: Return per unit of total volatility	0.26	-0.13	+0.39
Sortino ratio: Return per unit of downside risk	0.98	0.32	+0.66
Omega ratio: Gain probability vs. loss probability	1.11	1.04	+0.08
Calmar ratio: Return relative to maximum drawdown	0.43	-0.14	+0.57
Martin ratio: Return relative to average drawdown	0.84	-0.27	+1.11

ACIU vs. KTOS - Sharpe Ratio Comparison

The current ACIU Sharpe Ratio is 0.26, which is higher than the KTOS Sharpe Ratio of -0.13. The chart below compares the historical Sharpe Ratios of ACIU 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.

Drawdowns

ACIU vs. KTOS - Drawdown Comparison

The maximum ACIU drawdown since its inception was -92.33%, smaller than the maximum KTOS drawdown of -99.81%. Use the drawdown chart below to compare losses from any high point for ACIU and KTOS.

Drawdown Indicators

	ACIU	KTOS	Difference
Max Drawdown Largest peak-to-trough decline	-92.33%	-99.81%	+7.48%
Max Drawdown (1Y) Largest decline over 1 year	-46.87%	-64.57%	+17.70%
Max Drawdown (3Y) Largest decline over 3 years	-70.40%	-64.57%	-5.83%
Max Drawdown (5Y) Largest decline over 5 years	-81.80%	-66.97%	-14.83%
Max Drawdown (10Y) Largest decline over 10 years	—	-72.74%	—
Current Drawdown Current decline from peak	-87.31%	-97.03%	+9.72%
Average Drawdown Average peak-to-trough decline	-69.54%	-95.93%	+26.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	23.86%	34.26%	-10.40%

Volatility

ACIU vs. KTOS - Volatility Comparison

AC Immune SA (ACIU) has a higher volatility of 19.67% compared to Kratos Defense & Security Solutions, Inc. (KTOS) at 17.76%. This indicates that ACIU's price experiences larger fluctuations and is considered to be riskier than KTOS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACIU	KTOS	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.67%	17.76%	+1.91%
Volatility (6M) Calculated over the trailing 6-month period	45.34%	54.32%	-8.98%
Volatility (1Y) Calculated over the trailing 1-year period	77.68%	71.09%	+6.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	78.33%	52.65%	+25.68%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	79.45%	50.91%	+28.54%

Dividends

ACIU vs. KTOS - Dividend Comparison

Neither ACIU nor KTOS has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both ACIU and KTOS in my portfolio?

ACIU and KTOS have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ACIU or KTOS?

ACIU has higher volatility (19.67%) compared to KTOS (17.76%). In terms of maximum drawdown, ACIU dropped -92.33% vs KTOS's -99.81%.

Which has better risk-adjusted returns?

ACIU currently has the higher Sharpe Ratio (0.26 vs -0.13), 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.