BLNK vs. ALT

Last updated Jun 3, 2026

BLNK (Blink Charging Co.) and ALT (Altimmune, Inc.) are both stocks. BLNK operates in Specialty Retail (Consumer Cyclical), while ALT operates in Biotechnology (Healthcare). Over the past 5 years, BLNK returned -54.07%/yr vs -25.83%/yr for ALT. At a 0.27 correlation, their price movements are largely independent.

Performance

BLNK vs. ALT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Blink Charging Co. (BLNK) and Altimmune, Inc. (ALT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BLNK achieves a 19.06% return, which is significantly higher than ALT's -19.67% return.

BLNK

• 1D: -5.85%
• 1M: 7.75%
• YTD: 19.06%
• 6M: -36.98%
• 1Y: 11.62%
• 3Y*: -50.90%
• 5Y*: -54.07%
• 10Y*: —

ALT

• 1D: -3.65%
• 1M: 2.84%
• YTD: -19.67%
• 6M: -39.08%
• 1Y: -45.28%
• 3Y*: -12.03%
• 5Y*: -25.83%
• 10Y*: -28.18%

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

BLNK vs. ALT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BLNK Blink Charging Co.	19.06%	-52.01%	-59.00%	-69.10%	-58.62%	-37.99%	2,198.39%	8.14%	-79.79%
ALT Altimmune, Inc.	-19.67%	-49.93%	-35.91%	-31.61%	79.59%	-18.79%	496.83%	-8.25%	-95.10%

Correlation

The correlation between BLNK and ALT is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.34
Correlation (3Y) Calculated over the trailing 3-year period	0.34
Correlation (5Y) Calculated over the trailing 5-year period	0.36
Correlation (All Time) Calculated using the full available price history since Feb 14, 2018	0.27

Fundamentals

Market Cap BLNK : $113.68M ALT : $360.94M
EPS BLNK : -$0.63 ALT : -$0.92
PS Ratio BLNK : 0.90 ALT : 7.97K
PB Ratio BLNK : 2.10 ALT : 1.27
Total Revenue (TTM) BLNK : $103.40M ALT : $36.00K
Gross Profit (TTM) BLNK : $24.62M ALT : -$14.92M
EBITDA (TTM) BLNK : -$58.57M ALT : -$93.48M

Return for Risk

BLNK vs. ALT — Risk / Return Rank

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

BLNK

BLNK Risk / Return Rank: 46
BLNK Sharpe Ratio Rank: 44
BLNK Sortino Ratio Rank: 52
BLNK Omega Ratio Rank: 48
BLNK Calmar Ratio Rank: 44
BLNK Martin Ratio Rank: 42

ALT

ALT Risk / Return Rank: 21
ALT Sharpe Ratio Rank: 19
ALT Sortino Ratio Rank: 26
ALT Omega Ratio Rank: 26
ALT Calmar Ratio Rank: 14
ALT Martin Ratio Rank: 20

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.

BLNK vs. ALT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Blink Charging Co. (BLNK) and Altimmune, Inc. (ALT). 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.

	BLNK	ALT	Difference
Sharpe ratio Return per unit of total volatility	0.12	-0.50	+0.61
Sortino ratio Return per unit of downside risk	0.99	-0.13	+1.12
Omega ratio Gain probability vs. loss probability	1.10	0.98	+0.13
Calmar ratio Return relative to maximum drawdown	0.16	-0.70	+0.87
Martin ratio Return relative to average drawdown	0.25	-0.97	+1.22
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BLNK vs. ALT - Sharpe Ratio Comparison

The current BLNK Sharpe Ratio is 0.12, which is higher than the ALT Sharpe Ratio of -0.50. The chart below compares the historical Sharpe Ratios of BLNK and ALT, 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

	BLNK	ALT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.12	-0.50	+0.61
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.65	-0.27	-0.38
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	-0.19	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.21	-0.17	-0.04

Drawdowns

BLNK vs. ALT - Drawdown Comparison

The maximum BLNK drawdown since its inception was -99.17%, roughly equal to the maximum ALT drawdown of -99.63%. Use the drawdown chart below to compare losses from any high point for BLNK and ALT.

Drawdown Indicators

	BLNK	ALT	Difference
Max Drawdown Largest peak-to-trough decline	-99.17%	-99.63%	+0.46%
Max Drawdown (1Y) Largest decline over 1 year	-79.94%	-66.28%	-13.66%
Max Drawdown (3Y) Largest decline over 3 years	-92.69%	-81.17%	-11.52%
Max Drawdown (5Y) Largest decline over 5 years	-98.93%	-90.45%	-8.48%
Max Drawdown (10Y) Largest decline over 10 years	—	-99.63%	—
Current Drawdown Current decline from peak	-98.69%	-99.29%	+0.60%
Average Drawdown Average peak-to-trough decline	-73.00%	-78.87%	+5.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	51.81%	47.88%	+3.93%

Volatility

BLNK vs. ALT - Volatility Comparison

Blink Charging Co. (BLNK) has a higher volatility of 30.46% compared to Altimmune, Inc. (ALT) at 15.26%. This indicates that BLNK's price experiences larger fluctuations and is considered to be riskier than ALT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BLNK	ALT	Difference
Volatility (1M) Calculated over the trailing 1-month period	30.46%	15.26%	+15.20%
Volatility (6M) Calculated over the trailing 6-month period	68.16%	61.03%	+7.13%
Volatility (1Y) Calculated over the trailing 1-year period	98.36%	91.62%	+6.74%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	83.06%	94.48%	-11.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	121.52%	149.68%	-28.16%

Dividends

BLNK vs. ALT - Dividend Comparison

Neither BLNK nor ALT has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
ALT Altimmune, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	1,462.31%
BLNK Blink Charging Co.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both BLNK and ALT in my portfolio?

BLNK and ALT have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BLNK or ALT?

BLNK has higher volatility (30.46%) compared to ALT (15.26%). In terms of maximum drawdown, BLNK dropped -99.17% vs ALT's -99.63%.

Which has better risk-adjusted returns?

BLNK currently has the higher Sharpe Ratio (0.12 vs -0.50), 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.