000660.KS vs. OKLO

Last updated Apr 2, 2026

Compare and contrast key facts about SK Hynix Inc (000660.KS) and Oklo Inc. (OKLO).

Performance

000660.KS vs. OKLO - Performance Comparison

The chart below illustrates the hypothetical performance of a ₩10,000 investment in SK Hynix Inc (000660.KS) and Oklo Inc. (OKLO). The values are adjusted to include any dividend payments, if applicable.

000660.KS vs. OKLO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
000660.KS SK Hynix Inc	37.43%	278.27%	23.46%	90.71%	-41.98%	9.14%
OKLO Oklo Inc.	-29.23%	230.24%	129.21%	9.49%	6.41%	2.33%

Different Trading Currencies

000660.KS is traded in KRW, while OKLO is traded in USD. To make them comparable, the OKLO values have been converted to KRW using the latest available exchange rates.

Returns By Period

In the year-to-date period, 000660.KS achieves a 37.43% return, which is significantly higher than OKLO's -29.23% return.

000660.KS

• 1D: 10.66%
• 1M: -10.70%
• YTD: 37.43%
• 6M: 148.70%
• 1Y: 355.95%
• 3Y*: 117.76%
• 5Y*: 46.20%
• 10Y*: 43.06%

OKLO

• 1D: -1.97%
• 1M: -22.20%
• YTD: -29.23%
• 6M: -55.01%
• 1Y: 121.25%
• 3Y*: 76.84%
• 5Y*: —
• 10Y*: —

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

Return for Risk

000660.KS vs. OKLO — Risk / Return Rank

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

000660.KS

000660.KS Risk / Return Rank: 99
000660.KS Sharpe Ratio Rank: 100
000660.KS Sortino Ratio Rank: 98
000660.KS Omega Ratio Rank: 97
000660.KS Calmar Ratio Rank: 99
000660.KS Martin Ratio Rank: 99

OKLO

OKLO Risk / Return Rank: 73
OKLO Sharpe Ratio Rank: 75
OKLO Sortino Ratio Rank: 79
OKLO Omega Ratio Rank: 71
OKLO Calmar Ratio Rank: 72
OKLO Martin Ratio Rank: 69

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.

000660.KS vs. OKLO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SK Hynix Inc (000660.KS) and Oklo Inc. (OKLO). 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.

	000660.KS	OKLO	Difference
Sharpe ratio Return per unit of total volatility	6.24	1.15	+5.09
Sortino ratio Return per unit of downside risk	4.75	2.17	+2.58
Omega ratio Gain probability vs. loss probability	1.64	1.24	+0.40
Calmar ratio Return relative to maximum drawdown	14.33	1.80	+12.53
Martin ratio Return relative to average drawdown	38.68	3.66	+35.02
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

000660.KS vs. OKLO - Sharpe Ratio Comparison

The current 000660.KS Sharpe Ratio is 6.24, which is higher than the OKLO Sharpe Ratio of 1.15. The chart below compares the historical Sharpe Ratios of 000660.KS and OKLO, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	000660.KS	OKLO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	6.24	1.15	+5.09
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.07	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.09	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.46	0.57	-1.03

Correlation

The correlation between 000660.KS and OKLO is -0.05. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.

Dividends

000660.KS vs. OKLO - Dividend Comparison

000660.KS's dividend yield for the trailing twelve months is around 0.34%, while OKLO has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
000660.KS SK Hynix Inc	0.34%	0.37%	0.52%	0.85%	1.60%	1.18%	0.99%	1.06%	2.48%	1.31%	1.34%	1.63%
OKLO Oklo 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%

Drawdowns

000660.KS vs. OKLO - Drawdown Comparison

The maximum 000660.KS drawdown since its inception was -123.94%, which is greater than OKLO's maximum drawdown of -72.22%. Use the drawdown chart below to compare losses from any high point for 000660.KS and OKLO.

Drawdown Indicators

	000660.KS	OKLO	Difference
Max Drawdown Largest peak-to-trough decline	-123.94%	-73.83%	-50.11%
Max Drawdown (1Y) Largest decline over 1 year	-19.30%	-73.83%	+54.53%
Max Drawdown (5Y) Largest decline over 5 years	-46.58%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-48.20%	—	—
Current Drawdown Current decline from peak	-100.00%	-72.40%	-27.60%
Average Drawdown Average peak-to-trough decline	-93.77%	-16.25%	-77.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.71%	36.15%	-27.44%

Volatility

000660.KS vs. OKLO - Volatility Comparison

SK Hynix Inc (000660.KS) has a higher volatility of 29.51% compared to Oklo Inc. (OKLO) at 18.86%. This indicates that 000660.KS's price experiences larger fluctuations and is considered to be riskier than OKLO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	000660.KS	OKLO	Difference
Volatility (1M) Calculated over the trailing 1-month period	29.51%	18.86%	+10.65%
Volatility (6M) Calculated over the trailing 6-month period	49.74%	69.54%	-19.80%
Volatility (1Y) Calculated over the trailing 1-year period	61.34%	106.01%	-44.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.77%	84.60%	-39.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	40.99%	84.60%	-43.61%

Financials