SPIR vs. ASTS

Last updated Jun 23, 2026

SPIR (Spire Global, Inc.) and ASTS (AST SpaceMobile, Inc.) are both stocks. SPIR operates in Specialty Business Services (Industrials), while ASTS operates in Communication Equipment (Technology). Over the past 5 years, SPIR returned -26.35%/yr vs 50.21%/yr for ASTS. At a 0.36 correlation, their price movements are largely independent.

Performance

SPIR vs. ASTS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Spire Global, Inc. (SPIR) and AST SpaceMobile, Inc. (ASTS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SPIR achieves a 130.27% return, which is significantly higher than ASTS's 0.77% return.

SPIR

• 1D: -8.96%
• 1M: -18.38%
• YTD: 130.27%
• 6M: 90.62%
• 1Y: 73.74%
• 3Y*: 67.27%
• 5Y*: -26.35%
• 10Y*: —

ASTS

• 1D: -9.26%
• 1M: -30.86%
• YTD: 0.77%
• 6M: -15.37%
• 1Y: 59.32%
• 3Y*: 120.25%
• 5Y*: 50.21%
• 10Y*: —

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

SPIR vs. ASTS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
SPIR Spire Global, Inc.	130.27%	-46.70%	79.92%	1.82%	-71.60%	-66.13%
ASTS AST SpaceMobile, Inc.	0.77%	244.22%	249.92%	25.10%	-39.29%	-31.73%

Correlation

The correlation between SPIR and ASTS is 0.61, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.62
Correlation (3Y) Calculated over the trailing 3-year period	0.44
Correlation (5Y) Calculated over the trailing 5-year period	0.37
Correlation (All Time) Calculated using the full available price history since Apr 7, 2021	0.36

Over the past year, SPIR and ASTS have become more correlated (0.61) than their long-term average of 0.36, meaning their price movements have been converging.

Fundamentals

Market Cap SPIR : $574.57B ASTS : $21.28B
EPS SPIR : -$3.07 ASTS : -$1.84
PS Ratio SPIR : 18.00 ASTS : 228.68
PB Ratio SPIR : 6.30 ASTS : 8.00
Total Revenue (TTM) SPIR : $15.88B ASTS : $84.94M
Gross Profit (TTM) SPIR : $6.33B ASTS : -$22.93M
EBITDA (TTM) SPIR : -$24.64B ASTS : -$536.80M

Return for Risk

SPIR vs. ASTS — Risk / Return Rank

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

SPIR

SPIR Risk / Return Rank: 68
SPIR Sharpe Ratio Rank: 66
SPIR Sortino Ratio Rank: 69
SPIR Omega Ratio Rank: 68
SPIR Calmar Ratio Rank: 69
SPIR Martin Ratio Rank: 67

ASTS

ASTS Risk / Return Rank: 64
ASTS Sharpe Ratio Rank: 61
ASTS Sortino Ratio Rank: 66
ASTS Omega Ratio Rank: 62
ASTS Calmar Ratio Rank: 66
ASTS Martin Ratio Rank: 64

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.

SPIR vs. ASTS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Spire Global, Inc. (SPIR) and AST SpaceMobile, Inc. (ASTS). 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.

	SPIR	ASTS	Difference
Sharpe ratio: Return per unit of total volatility	0.72	0.56	+0.15
Sortino ratio: Return per unit of downside risk	1.66	1.47	+0.19
Omega ratio: Gain probability vs. loss probability	1.20	1.17	+0.04
Calmar ratio: Return relative to maximum drawdown	1.48	1.25	+0.23
Martin ratio: Return relative to average drawdown	2.90	2.38	+0.52

SPIR vs. ASTS - Sharpe Ratio Comparison

The current SPIR Sharpe Ratio is 0.72, which is comparable to the ASTS Sharpe Ratio of 0.56. The chart below compares the historical Sharpe Ratios of SPIR and ASTS, 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

SPIR vs. ASTS - Drawdown Comparison

The maximum SPIR drawdown since its inception was -97.74%, which is greater than ASTS's maximum drawdown of -85.57%. Use the drawdown chart below to compare losses from any high point for SPIR and ASTS.

Drawdown Indicators

	SPIR	ASTS	Difference
Max Drawdown Largest peak-to-trough decline	-97.74%	-85.57%	-12.17%
Max Drawdown (1Y) Largest decline over 1 year	-50.04%	-47.69%	-2.35%
Max Drawdown (3Y) Largest decline over 3 years	-66.22%	-70.66%	+4.44%
Max Drawdown (5Y) Largest decline over 5 years	-97.74%	-85.57%	-12.17%
Current Drawdown Current decline from peak	-88.30%	-45.01%	-43.29%
Average Drawdown Average peak-to-trough decline	-77.97%	-40.50%	-37.47%
Ulcer Index Depth and duration of drawdowns from previous peaks	25.51%	25.02%	+0.49%

Volatility

SPIR vs. ASTS - Volatility Comparison

The current volatility for Spire Global, Inc. (SPIR) is 39.83%, while AST SpaceMobile, Inc. (ASTS) has a volatility of 42.16%. This indicates that SPIR experiences smaller price fluctuations and is considered to be less risky than ASTS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPIR	ASTS	Difference
Volatility (1M) Calculated over the trailing 1-month period	39.83%	42.16%	-2.33%
Volatility (6M) Calculated over the trailing 6-month period	80.75%	83.93%	-3.18%
Volatility (1Y) Calculated over the trailing 1-year period	103.70%	106.17%	-2.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	98.51%	109.65%	-11.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	92.96%	110.98%	-18.02%

Dividends

SPIR vs. ASTS - Dividend Comparison

Neither SPIR nor ASTS has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both SPIR and ASTS in my portfolio?

SPIR and ASTS have a correlation of 0.61, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SPIR or ASTS?

ASTS has higher volatility (42.16%) compared to SPIR (39.83%). In terms of maximum drawdown, SPIR dropped -97.74% vs ASTS's -85.57%.

Which has better risk-adjusted returns?

SPIR currently has the higher Sharpe Ratio (0.72 vs 0.56), 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.