TLK vs. ASTS

Last updated Jun 3, 2026

TLK (Perusahaan Perseroan (Persero) PT Telekomunikasi Indonesia Tbk) and ASTS (AST SpaceMobile, Inc.) are both stocks. Both operate in the Telecom Services industry within the Communication Services sector. Over the past 5 years, TLK returned -3.47%/yr vs 70.97%/yr for ASTS. At a 0.13 correlation, their price movements are largely independent.

Performance

TLK vs. ASTS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Perusahaan Perseroan (Persero) PT Telekomunikasi Indonesia Tbk (TLK) 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, TLK achieves a -22.52% return, which is significantly lower than ASTS's 62.70% return.

TLK

• 1D: -0.31%
• 1M: -1.98%
• YTD: -22.52%
• 6M: -24.39%
• 1Y: 2.60%
• 3Y*: -10.94%
• 5Y*: -3.47%
• 10Y*: -2.13%

ASTS

• 1D: 11.85%
• 1M: 66.69%
• YTD: 62.70%
• 6M: 107.72%
• 1Y: 389.32%
• 3Y*: 176.01%
• 5Y*: 70.97%
• 10Y*: —

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

TLK vs. ASTS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
TLK Perusahaan Perseroan (Persero) PT Telekomunikasi Indonesia Tbk	-22.52%	37.97%	-32.33%	12.56%	-14.60%	24.66%	-13.28%	-2.30%
ASTS AST SpaceMobile, Inc.	62.70%	244.22%	249.92%	25.10%	-39.29%	-41.53%	37.59%	1.02%

Correlation

The correlation between TLK and ASTS is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.20
Correlation (3Y) Calculated over the trailing 3-year period	0.17
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (All Time) Calculated using the full available price history since Nov 4, 2019	0.13

Fundamentals

Market Cap TLK : $16.16B ASTS : $34.35B
EPS TLK : $17.99K ASTS : -$1.84
PS Ratio TLK : 0.00 ASTS : 369.21
PB Ratio TLK : 0.00 ASTS : 12.91
Total Revenue (TTM) TLK : $146.88T ASTS : $84.94M
Gross Profit (TTM) TLK : $81.60T ASTS : -$22.93M
EBITDA (TTM) TLK : $73.78T ASTS : -$536.80M

Return for Risk

TLK vs. ASTS — Risk / Return Rank

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

TLK

TLK Risk / Return Rank: 40
TLK Sharpe Ratio Rank: 43
TLK Sortino Ratio Rank: 38
TLK Omega Ratio Rank: 37
TLK Calmar Ratio Rank: 42
TLK Martin Ratio Rank: 41

ASTS

ASTS Risk / Return Rank: 93
ASTS Sharpe Ratio Rank: 97
ASTS Sortino Ratio Rank: 90
ASTS Omega Ratio Rank: 87
ASTS Calmar Ratio Rank: 96
ASTS Martin Ratio Rank: 94

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.

TLK vs. ASTS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Perusahaan Perseroan (Persero) PT Telekomunikasi Indonesia Tbk (TLK) 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.

	TLK	ASTS	Difference
Sharpe ratio Return per unit of total volatility	0.08	3.76	-3.67
Sortino ratio Return per unit of downside risk	0.34	3.29	-2.95
Omega ratio Gain probability vs. loss probability	1.04	1.39	-0.34
Calmar ratio Return relative to maximum drawdown	0.08	8.64	-8.56
Martin ratio Return relative to average drawdown	0.19	17.29	-17.09
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TLK vs. ASTS - Sharpe Ratio Comparison

The current TLK Sharpe Ratio is 0.08, which is lower than the ASTS Sharpe Ratio of 3.76. The chart below compares the historical Sharpe Ratios of TLK 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.

Sharpe Ratios by Period

	TLK	ASTS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.08	3.76	-3.67
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.13	0.64	-0.77
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.08	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	0.46	-0.10

Drawdowns

TLK vs. ASTS - Drawdown Comparison

The maximum TLK drawdown since its inception was -67.48%, smaller than the maximum ASTS drawdown of -91.07%. Use the drawdown chart below to compare losses from any high point for TLK and ASTS.

Drawdown Indicators

	TLK	ASTS	Difference
Max Drawdown Largest peak-to-trough decline	-67.48%	-91.07%	+23.59%
Max Drawdown (1Y) Largest decline over 1 year	-30.39%	-47.69%	+17.30%
Max Drawdown (3Y) Largest decline over 3 years	-48.21%	-70.66%	+22.45%
Max Drawdown (5Y) Largest decline over 5 years	-53.95%	-85.57%	+31.62%
Max Drawdown (10Y) Largest decline over 10 years	-53.95%	—	—
Current Drawdown Current decline from peak	-38.84%	-11.21%	-27.63%
Average Drawdown Average peak-to-trough decline	-19.63%	-43.42%	+23.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.21%	23.85%	-10.64%

Volatility

TLK vs. ASTS - Volatility Comparison

The current volatility for Perusahaan Perseroan (Persero) PT Telekomunikasi Indonesia Tbk (TLK) is 7.98%, while AST SpaceMobile, Inc. (ASTS) has a volatility of 39.20%. This indicates that TLK 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

	TLK	ASTS	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.98%	39.20%	-31.22%
Volatility (6M) Calculated over the trailing 6-month period	22.68%	83.68%	-61.00%
Volatility (1Y) Calculated over the trailing 1-year period	30.90%	104.49%	-73.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.21%	111.63%	-85.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.22%	100.46%	-72.24%

Dividends

TLK vs. ASTS - Dividend Comparison

TLK's dividend yield for the trailing twelve months is around 7.99%, while ASTS has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ASTS AST SpaceMobile, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
TLK Perusahaan Perseroan (Persero) PT Telekomunikasi Indonesia Tbk	7.99%	6.19%	6.76%	4.38%	4.36%	0.99%	4.59%	2.66%	0.92%	2.73%	2.88%	3.05%

Financials

Frequently Asked Questions

Can I hold both TLK and ASTS in my portfolio?

TLK and ASTS have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TLK or ASTS?

ASTS has higher volatility (39.20%) compared to TLK (7.98%). In terms of maximum drawdown, TLK dropped -67.48% vs ASTS's -91.07%.

Which has better risk-adjusted returns?

ASTS currently has the higher Sharpe Ratio (3.76 vs 0.08), 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.