ASTI vs. ALT

Last updated Jun 23, 2026

ASTI (Ascent Solar Technologies Inc.) and ALT (Altimmune, Inc.) are both stocks. ASTI operates in Solar (Technology), while ALT operates in Biotechnology (Healthcare). Over the past 10 years, ASTI returned -75.27%/yr vs -28.57%/yr for ALT. At a 0.06 correlation, their price movements are largely independent.

Performance

ASTI vs. ALT - Performance Comparison

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

Returns By Period

In the year-to-date period, ASTI achieves a 41.36% return, which is significantly higher than ALT's -18.84% return. Over the past 10 years, ASTI has underperformed ALT with an annualized return of -75.27%, while ALT has yielded a comparatively higher -28.57% annualized return.

ASTI

• 1D: -6.59%
• 1M: 8.40%
• YTD: 41.36%
• 6M: 49.74%
• 1Y: 270.06%
• 3Y*: -86.46%
• 5Y*: -91.83%
• 10Y*: -75.27%

ALT

• 1D: 8.52%
• 1M: 1.03%
• YTD: -18.84%
• 6M: -29.23%
• 1Y: -58.32%
• 3Y*: -9.17%
• 5Y*: -28.96%
• 10Y*: -28.57%

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

ASTI vs. ALT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ASTI Ascent Solar Technologies Inc.	41.36%	25.69%	-96.24%	-99.73%	-86.96%	-68.75%	7,900.00%	-99.32%	1,544.44%	-68.97%
ALT Altimmune, Inc.	-18.84%	-49.93%	-35.91%	-31.61%	79.59%	-18.79%	496.83%	-8.25%	-96.55%	-47.79%

Correlation

The correlation between ASTI and ALT is 0.11, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.11
Correlation (3Y) Calculated over the trailing 3-year period	0.15
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (10Y) Calculated over the trailing 10-year period	0.06
Correlation (All Time) Calculated using the full available price history since Jul 25, 2006	0.06

Fundamentals

Market Cap ASTI : $46.30M ALT : $364.67M
EPS ASTI : -$2.15 ALT : -$0.92
PS Ratio ASTI : 198.96 ALT : 8.06K
PB Ratio ASTI : 2.76 ALT : 1.28
Total Revenue (TTM) ASTI : $113.09K ALT : $36.00K
Gross Profit (TTM) ASTI : -$757.46K ALT : -$14.92M
EBITDA (TTM) ASTI : -$7.98M ALT : -$93.48M

Return for Risk

ASTI vs. ALT — Risk / Return Rank

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

ASTI

ASTI Risk / Return Rank: 86
ASTI Sharpe Ratio Rank: 77
ASTI Sortino Ratio Rank: 91
ASTI Omega Ratio Rank: 88
ASTI Calmar Ratio Rank: 90
ASTI Martin Ratio Rank: 83

ALT

ALT Risk / Return Rank: 15
ALT Sharpe Ratio Rank: 14
ALT Sortino Ratio Rank: 20
ALT Omega Ratio Rank: 17
ALT Calmar Ratio Rank: 8
ALT Martin Ratio Rank: 16

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.

ASTI vs. ALT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Ascent Solar Technologies Inc. (ASTI) 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.

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.

	ASTI	ALT	Difference
Sharpe ratio: Return per unit of total volatility	1.22	-0.65	+1.87
Sortino ratio: Return per unit of downside risk	3.27	-0.52	+3.79
Omega ratio: Gain probability vs. loss probability	1.39	0.91	+0.48
Calmar ratio: Return relative to maximum drawdown	4.38	-0.88	+5.26
Martin ratio: Return relative to average drawdown	7.38	-1.16	+8.55

ASTI vs. ALT - Sharpe Ratio Comparison

The current ASTI Sharpe Ratio is 1.22, which is higher than the ALT Sharpe Ratio of -0.65. The chart below compares the historical Sharpe Ratios of ASTI 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.

Drawdowns

ASTI vs. ALT - Drawdown Comparison

The maximum ASTI drawdown since its inception was -100.00%, roughly equal to the maximum ALT drawdown of -99.63%. Use the drawdown chart below to compare losses from any high point for ASTI and ALT.

Drawdown Indicators

	ASTI	ALT	Difference
Max Drawdown Largest peak-to-trough decline	-100.00%	-99.63%	-0.37%
Max Drawdown (1Y) Largest decline over 1 year	-62.08%	-66.41%	+4.33%
Max Drawdown (3Y) Largest decline over 3 years	-99.96%	-81.25%	-18.71%
Max Drawdown (5Y) Largest decline over 5 years	-100.00%	-90.45%	-9.55%
Max Drawdown (10Y) Largest decline over 10 years	-100.00%	-99.63%	-0.37%
Current Drawdown Current decline from peak	-100.00%	-99.29%	-0.71%
Average Drawdown Average peak-to-trough decline	-90.37%	-78.91%	-11.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	36.77%	50.09%	-13.32%

Volatility

ASTI vs. ALT - Volatility Comparison

Ascent Solar Technologies Inc. (ASTI) has a higher volatility of 59.59% compared to Altimmune, Inc. (ALT) at 14.12%. This indicates that ASTI'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

	ASTI	ALT	Difference
Volatility (1M) Calculated over the trailing 1-month period	59.59%	14.12%	+45.47%
Volatility (6M) Calculated over the trailing 6-month period	136.12%	60.60%	+75.52%
Volatility (1Y) Calculated over the trailing 1-year period	223.63%	90.63%	+133.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	162.79%	94.20%	+68.59%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	8,956.71%	149.74%	+8,806.97%

Dividends

ASTI vs. ALT - Dividend Comparison

Neither ASTI 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%
ASTI Ascent Solar Technologies Inc.	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 ASTI and ALT in my portfolio?

ASTI and ALT have a correlation of 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ASTI or ALT?

ASTI has higher volatility (59.59%) compared to ALT (14.12%). In terms of maximum drawdown, ASTI dropped -100.00% vs ALT's -99.63%.

Which has better risk-adjusted returns?

ASTI currently has the higher Sharpe Ratio (1.22 vs -0.65), 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.