NN vs. RNMBY

Last updated Jun 4, 2026

NN (NextNav Inc.) and RNMBY (Rheinmetall AG ADR) are both stocks. NN operates in Internet Content & Information (Communication Services), while RNMBY operates in Aerospace & Defense (Industrials). Over the past 3 years, NN returned 100.65%/yr vs 76.84%/yr for RNMBY. At a 0.09 correlation, their price movements are largely independent.

Performance

NN vs. RNMBY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in NextNav Inc. (NN) and Rheinmetall AG ADR (RNMBY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NN achieves a 29.63% return, which is significantly higher than RNMBY's -23.30% return.

NN

• 1D: 7.58%
• 1M: 19.04%
• YTD: 29.63%
• 6M: 48.35%
• 1Y: 85.47%
• 3Y*: 100.65%
• 5Y*: —
• 10Y*: —

RNMBY

• 1D: -0.10%
• 1M: -12.78%
• YTD: -23.30%
• 6M: -21.38%
• 1Y: -33.14%
• 3Y*: 76.84%
• 5Y*: 69.62%
• 10Y*: 37.34%

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

NN vs. RNMBY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
NN NextNav Inc.	29.63%	6.94%	249.66%	51.88%	-66.55%	-19.34%
RNMBY Rheinmetall AG ADR	-23.30%	190.28%	99.83%	63.35%	122.00%	-5.72%

Correlation

The correlation between NN and RNMBY is 0.07, 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	0.07
Correlation (3Y) Calculated over the trailing 3-year period	0.10
Correlation (All Time) Calculated using the full available price history since Oct 29, 2021	0.09

Fundamentals

Market Cap NN : $3.27B RNMBY : $64.74B
EPS NN : -$1.00 RNMBY : $3.56
PS Ratio NN : 758.03 RNMBY : 5.86
Total Revenue (TTM) NN : $4.03M RNMBY : $9.58B
Gross Profit (TTM) NN : -$10.72M RNMBY : $4.12B
EBITDA (TTM) NN : -$81.67M RNMBY : $1.81B

Return for Risk

NN vs. RNMBY — Risk / Return Rank

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

NN

NN Risk / Return Rank: 75
NN Sharpe Ratio Rank: 76
NN Sortino Ratio Rank: 71
NN Omega Ratio Rank: 74
NN Calmar Ratio Rank: 77
NN Martin Ratio Rank: 77

RNMBY

RNMBY Risk / Return Rank: 11
RNMBY Sharpe Ratio Rank: 11
RNMBY Sortino Ratio Rank: 13
RNMBY Omega Ratio Rank: 14
RNMBY Calmar Ratio Rank: 12
RNMBY Martin Ratio Rank: 2

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.

NN vs. RNMBY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for NextNav Inc. (NN) and Rheinmetall AG ADR (RNMBY). 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.

	NN	RNMBY	Difference
Sharpe ratio: Return per unit of total volatility	1.23	-0.71	+1.94
Sortino ratio: Return per unit of downside risk	1.82	-0.86	+2.67
Omega ratio: Gain probability vs. loss probability	1.26	0.90	+0.36
Calmar ratio: Return relative to maximum drawdown	2.35	-0.75	+3.10
Martin ratio: Return relative to average drawdown	5.64	-1.72	+7.36
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

NN vs. RNMBY - Sharpe Ratio Comparison

The current NN Sharpe Ratio is 1.23, which is higher than the RNMBY Sharpe Ratio of -0.71. The chart below compares the historical Sharpe Ratios of NN and RNMBY, 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

	NN	RNMBY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.23	-0.71	+1.94
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	1.56	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.90	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.21	0.80	-0.59

Drawdowns

NN vs. RNMBY - Drawdown Comparison

The maximum NN drawdown since its inception was -86.54%, which is greater than RNMBY's maximum drawdown of -67.75%. Use the drawdown chart below to compare losses from any high point for NN and RNMBY.

Drawdown Indicators

	NN	RNMBY	Difference
Max Drawdown Largest peak-to-trough decline	-86.54%	-67.75%	-18.79%
Max Drawdown (1Y) Largest decline over 1 year	-36.62%	-44.06%	+7.44%
Max Drawdown (3Y) Largest decline over 3 years	-47.78%	-44.06%	-3.72%
Max Drawdown (5Y) Largest decline over 5 years	—	-44.06%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-67.75%	—
Current Drawdown Current decline from peak	-7.03%	-40.10%	+33.07%
Average Drawdown Average peak-to-trough decline	-45.93%	-16.69%	-29.24%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.20%	19.29%	-4.09%

Volatility

NN vs. RNMBY - Volatility Comparison

NextNav Inc. (NN) has a higher volatility of 20.41% compared to Rheinmetall AG ADR (RNMBY) at 17.60%. This indicates that NN's price experiences larger fluctuations and is considered to be riskier than RNMBY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NN	RNMBY	Difference
Volatility (1M) Calculated over the trailing 1-month period	20.41%	17.60%	+2.81%
Volatility (6M) Calculated over the trailing 6-month period	59.62%	34.43%	+25.19%
Volatility (1Y) Calculated over the trailing 1-year period	70.13%	46.66%	+23.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	76.90%	44.76%	+32.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	76.90%	41.55%	+35.35%

Dividends

NN vs. RNMBY - Dividend Comparison

NN has not paid dividends to shareholders, while RNMBY's dividend yield for the trailing twelve months is around 0.98%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NN NextNav 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%
RNMBY Rheinmetall AG ADR	0.98%	0.49%	0.96%	1.46%	1.82%	1.72%	1.56%	1.36%	1.47%	2.06%	2.97%	0.53%

Financials

Frequently Asked Questions

Can I hold both NN and RNMBY in my portfolio?

NN and RNMBY have a correlation of 0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, NN or RNMBY?

NN has higher volatility (20.41%) compared to RNMBY (17.60%). In terms of maximum drawdown, NN dropped -86.54% vs RNMBY's -67.75%.

Which has better risk-adjusted returns?

NN currently has the higher Sharpe Ratio (1.23 vs -0.71), 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.