KT vs. ASTS

Last updated Jun 23, 2026

KT (KT Corporation) and ASTS (AST SpaceMobile, Inc.) are both stocks. KT operates in Telecom Services (Communication Services), while ASTS operates in Communication Equipment (Technology). Over the past 5 years, KT returned 10.09%/yr vs 50.21%/yr for ASTS. At a 0.15 correlation, their price movements are largely independent.

Performance

KT vs. ASTS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in KT Corporation (KT) 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, KT achieves a -5.10% return, which is significantly lower than ASTS's 0.77% return.

KT

• 1D: -2.57%
• 1M: -2.57%
• YTD: -5.10%
• 6M: -3.32%
• 1Y: -7.08%
• 3Y*: 21.22%
• 5Y*: 10.09%
• 10Y*: 5.49%

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)

KT vs. ASTS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
KT KT Corporation	-5.10%	27.73%	19.93%	5.01%	13.34%	7.35%
ASTS AST SpaceMobile, Inc.	0.77%	244.22%	249.92%	25.10%	-39.29%	-31.73%

Correlation

The correlation between KT and ASTS is 0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.07
Correlation (3Y) Calculated over the trailing 3-year period	0.11
Correlation (5Y) Calculated over the trailing 5-year period	0.15
Correlation (All Time) Calculated using the full available price history since Apr 7, 2021	0.15

Fundamentals

Market Cap KT : $9.92B ASTS : $21.28B
EPS KT : ₩3.14K ASTS : -$1.84
PS Ratio KT : 0.48 ASTS : 228.68
PB Ratio KT : 0.85 ASTS : 8.00
Total Revenue (TTM) KT : ₩28.39T ASTS : $84.94M
Gross Profit (TTM) KT : ₩15.90T ASTS : -$22.93M
EBITDA (TTM) KT : ₩5.41T ASTS : -$536.80M

Return for Risk

KT vs. ASTS — Risk / Return Rank

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

KT

KT Risk / Return Rank: 28
KT Sharpe Ratio Rank: 28
KT Sortino Ratio Rank: 24
KT Omega Ratio Rank: 25
KT Calmar Ratio Rank: 33
KT Martin Ratio Rank: 31

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.

KT vs. ASTS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for KT Corporation (KT) 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.

	KT	ASTS	Difference
Sharpe ratio: Return per unit of total volatility	-0.32	0.56	-0.88
Sortino ratio: Return per unit of downside risk	-0.31	1.47	-1.78
Omega ratio: Gain probability vs. loss probability	0.97	1.17	-0.20
Calmar ratio: Return relative to maximum drawdown	-0.26	1.25	-1.51
Martin ratio: Return relative to average drawdown	-0.63	2.38	-3.01

KT vs. ASTS - Sharpe Ratio Comparison

The current KT Sharpe Ratio is -0.32, which is lower than the ASTS Sharpe Ratio of 0.56. The chart below compares the historical Sharpe Ratios of KT 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

KT vs. ASTS - Drawdown Comparison

The maximum KT drawdown since its inception was -85.64%, roughly equal to the maximum ASTS drawdown of -85.57%. Use the drawdown chart below to compare losses from any high point for KT and ASTS.

Drawdown Indicators

	KT	ASTS	Difference
Max Drawdown Largest peak-to-trough decline	-85.64%	-85.57%	-0.07%
Max Drawdown (1Y) Largest decline over 1 year	-27.30%	-47.69%	+20.39%
Max Drawdown (3Y) Largest decline over 3 years	-27.30%	-70.66%	+43.36%
Max Drawdown (5Y) Largest decline over 5 years	-27.30%	-85.57%	+58.27%
Max Drawdown (10Y) Largest decline over 10 years	-64.03%	—	—
Current Drawdown Current decline from peak	-50.54%	-45.01%	-5.53%
Average Drawdown Average peak-to-trough decline	-65.87%	-40.50%	-25.37%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.27%	25.02%	-13.75%

Volatility

KT vs. ASTS - Volatility Comparison

The current volatility for KT Corporation (KT) is 7.41%, while AST SpaceMobile, Inc. (ASTS) has a volatility of 42.16%. This indicates that KT 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

	KT	ASTS	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.41%	42.16%	-34.75%
Volatility (6M) Calculated over the trailing 6-month period	17.18%	83.93%	-66.75%
Volatility (1Y) Calculated over the trailing 1-year period	22.30%	106.17%	-83.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.63%	109.65%	-87.02%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.36%	110.98%	-87.62%

Dividends

KT vs. ASTS - Dividend Comparison

KT's dividend yield for the trailing twelve months is around 3.49%, 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%
KT KT Corporation	3.49%	4.24%	3.50%	5.29%	5.40%	6.00%	0.00%	0.00%	0.00%	0.00%	2.49%	1.84%

Financials

Frequently Asked Questions

Can I hold both KT and ASTS in my portfolio?

KT and ASTS have a correlation of 0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, KT or ASTS?

ASTS has higher volatility (42.16%) compared to KT (7.41%). In terms of maximum drawdown, KT dropped -85.64% vs ASTS's -85.57%.

Which has better risk-adjusted returns?

ASTS currently has the higher Sharpe Ratio (0.56 vs -0.32), 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.