NN vs. ACFN

Last updated Jun 4, 2026

NN (NextNav Inc.) and ACFN (Acorn Energy, Inc.) are both stocks. NN operates in Internet Content & Information (Communication Services), while ACFN operates in Scientific & Technical Instruments (Technology). At a 0.19 correlation, their price movements are largely independent.

Performance

NN vs. ACFN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in NextNav Inc. (NN) and Acorn Energy, Inc. (ACFN). 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 ACFN's 10.07% return.

NN

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

ACFN

• 1D: -2.52%
• 1M: -14.68%
• YTD: 10.07%
• 6M: 4.27%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

NN vs. ACFN - Yearly Performance Comparison

	2026 (YTD)	2025
NN NextNav Inc.	29.63%	8.90%
ACFN Acorn Energy, Inc.	10.07%	-16.16%

Correlation

The correlation between NN and ACFN is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jul 25, 2025	0.19

Fundamentals

Market Cap NN : $3.27B ACFN : $41.65M
EPS NN : -$1.00 ACFN : $0.78
PS Ratio NN : 758.03 ACFN : 3.97
Total Revenue (TTM) NN : $4.03M ACFN : $10.61M
Gross Profit (TTM) NN : -$10.72M ACFN : $8.27M
EBITDA (TTM) NN : -$81.67M ACFN : $1.38M

Return for Risk

NN vs. ACFN — 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

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. ACFN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for NextNav Inc. (NN) and Acorn Energy, Inc. (ACFN). 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	ACFN	Difference
Sharpe ratio: Return per unit of total volatility	1.23	—	—
Sortino ratio: Return per unit of downside risk	1.82	—	—
Omega ratio: Gain probability vs. loss probability	1.26	—	—
Calmar ratio: Return relative to maximum drawdown	2.35	—	—
Martin ratio: Return relative to average drawdown	5.64	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	NN	ACFN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.23	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.21	-0.10	+0.31

Drawdowns

NN vs. ACFN - Drawdown Comparison

The maximum NN drawdown since its inception was -86.54%, which is greater than ACFN's maximum drawdown of -58.11%. Use the drawdown chart below to compare losses from any high point for NN and ACFN.

Drawdown Indicators

	NN	ACFN	Difference
Max Drawdown Largest peak-to-trough decline	-86.54%	-58.11%	-28.43%
Max Drawdown (1Y) Largest decline over 1 year	-36.62%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-47.78%	—	—
Current Drawdown Current decline from peak	-7.03%	-45.65%	+38.62%
Average Drawdown Average peak-to-trough decline	-45.93%	-31.65%	-14.28%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.20%	—	—

Volatility

Volatility by Period

	NN	ACFN	Difference
Volatility (1M) Calculated over the trailing 1-month period	20.41%	—	—
Volatility (6M) Calculated over the trailing 6-month period	59.62%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	70.13%	93.09%	-22.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	76.90%	93.09%	-16.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	76.90%	93.09%	-16.19%

Dividends

NN vs. ACFN - Dividend Comparison

Neither NN nor ACFN has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both NN and ACFN in my portfolio?

NN and ACFN have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.