METCB vs. ALT

Last updated Jun 5, 2026

METCB (Ramaco Resources Inc.) and ALT (Altimmune, Inc.) are both stocks. METCB operates in Coking Coal (Basic Materials), while ALT operates in Biotechnology (Healthcare). Over the past year, METCB returned 76.20% vs -46.81% for ALT. At a 0.14 correlation, their price movements are largely independent.

Performance

METCB vs. ALT - Performance Comparison

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

Returns By Period

In the year-to-date period, METCB achieves a 7.83% return, which is significantly higher than ALT's -19.11% return.

METCB

• 1D: -0.08%
• 1M: 18.45%
• YTD: 7.83%
• 6M: -2.54%
• 1Y: 76.20%
• 3Y*: —
• 5Y*: —
• 10Y*: —

ALT

• 1D: 1.74%
• 1M: -4.58%
• YTD: -19.11%
• 6M: -45.01%
• 1Y: -46.81%
• 3Y*: -11.90%
• 5Y*: -25.76%
• 10Y*: -28.19%

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

METCB vs. ALT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
METCB Ramaco Resources Inc.	7.83%	25.90%	-17.35%	24.77%
ALT Altimmune, Inc.	-19.11%	-49.93%	-35.91%	170.43%

Correlation

The correlation between METCB and ALT is 0.15, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.15
Correlation (All Time) Calculated using the full available price history since Jun 23, 2023	0.14

Fundamentals

EPS METCB : -$0.96 ALT : -$0.92
PS Ratio METCB : 1.51 ALT : 8.03K
Total Revenue (TTM) METCB : $523.58M ALT : $36.00K
Gross Profit (TTM) METCB : -$7.12M ALT : -$14.92M
EBITDA (TTM) METCB : $724.00K ALT : -$93.48M

Return for Risk

METCB vs. ALT — Risk / Return Rank

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

METCB

METCB Risk / Return Rank: 68
METCB Sharpe Ratio Rank: 71
METCB Sortino Ratio Rank: 72
METCB Omega Ratio Rank: 66
METCB Calmar Ratio Rank: 68
METCB Martin Ratio Rank: 62

ALT

ALT Risk / Return Rank: 22
ALT Sharpe Ratio Rank: 19
ALT Sortino Ratio Rank: 27
ALT Omega Ratio Rank: 25
ALT Calmar Ratio Rank: 15
ALT Martin Ratio Rank: 22

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.

METCB vs. ALT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Ramaco Resources Inc. (METCB) 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.

	METCB	ALT	Difference
Sharpe ratio: Return per unit of total volatility	0.96	-0.51	+1.48
Sortino ratio: Return per unit of downside risk	1.79	-0.17	+1.97
Omega ratio: Gain probability vs. loss probability	1.20	0.97	+0.23
Calmar ratio: Return relative to maximum drawdown	1.36	-0.71	+2.07
Martin ratio: Return relative to average drawdown	2.16	-0.97	+3.13
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

METCB vs. ALT - Sharpe Ratio Comparison

The current METCB Sharpe Ratio is 0.96, which is higher than the ALT Sharpe Ratio of -0.51. The chart below compares the historical Sharpe Ratios of METCB 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

	METCB	ALT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.96	-0.51	+1.48
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.27	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	-0.19	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.19	-0.17	+0.35

Drawdowns

METCB vs. ALT - Drawdown Comparison

The maximum METCB drawdown since its inception was -56.34%, smaller than the maximum ALT drawdown of -99.63%. Use the drawdown chart below to compare losses from any high point for METCB and ALT.

Drawdown Indicators

	METCB	ALT	Difference
Max Drawdown Largest peak-to-trough decline	-56.34%	-99.63%	+43.29%
Max Drawdown (1Y) Largest decline over 1 year	-56.34%	-66.28%	+9.94%
Max Drawdown (3Y) Largest decline over 3 years	—	-81.17%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-90.45%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-99.63%	—
Current Drawdown Current decline from peak	-41.53%	-99.29%	+57.76%
Average Drawdown Average peak-to-trough decline	-29.28%	-78.88%	+49.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	35.47%	48.20%	-12.73%

Volatility

METCB vs. ALT - Volatility Comparison

Ramaco Resources Inc. (METCB) has a higher volatility of 19.16% compared to Altimmune, Inc. (ALT) at 13.61%. This indicates that METCB'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

	METCB	ALT	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.16%	13.61%	+5.55%
Volatility (6M) Calculated over the trailing 6-month period	48.89%	60.69%	-11.80%
Volatility (1Y) Calculated over the trailing 1-year period	79.60%	91.58%	-11.98%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	64.74%	94.48%	-29.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	64.74%	149.62%	-84.88%

Dividends

METCB vs. ALT - Dividend Comparison

Neither METCB 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%
METCB Ramaco Resources Inc.	0.00%	3.18%	9.36%	3.11%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both METCB and ALT in my portfolio?

METCB and ALT have a correlation of 0.15, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, METCB or ALT?

METCB has higher volatility (19.16%) compared to ALT (13.61%). In terms of maximum drawdown, METCB dropped -56.34% vs ALT's -99.63%.

Which has better risk-adjusted returns?

METCB currently has the higher Sharpe Ratio (0.96 vs -0.51), 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.