XLE vs. OKLO

Last updated Jun 13, 2026

XLE (State Street Energy Select Sector SPDR ETF) is Energy Equities fund tracking the Energy Select Sector Index, while OKLO (Oklo Inc.) is a stock. Over the past 3 years, XLE returned 16.18%/yr vs 75.64%/yr for OKLO. At a 0.06 correlation, their price movements are largely independent.

Performance

XLE vs. OKLO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Energy Select Sector SPDR ETF (XLE) and Oklo Inc. (OKLO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, XLE achieves a 29.56% return, which is significantly higher than OKLO's -19.89% return.

XLE

• 1D: 0.75%
• 1M: -0.14%
• YTD: 29.56%
• 6M: 28.37%
• 1Y: 37.19%
• 3Y*: 16.18%
• 5Y*: 20.12%
• 10Y*: 9.91%

OKLO

• 1D: -0.64%
• 1M: -17.47%
• YTD: -19.89%
• 6M: -34.24%
• 1Y: -10.84%
• 3Y*: 75.64%
• 5Y*: —
• 10Y*: —

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

XLE vs. OKLO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
XLE State Street Energy Select Sector SPDR ETF	29.56%	7.88%	5.56%	-0.63%	64.32%	9.32%
OKLO Oklo Inc.	-19.89%	238.01%	101.04%	6.45%	0.71%	-1.50%

Correlation

The correlation between XLE and OKLO is -0.09, 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	-0.09
Correlation (3Y) Calculated over the trailing 3-year period	0.05
Correlation (All Time) Calculated using the full available price history since Jul 8, 2021	0.06

The correlation between XLE and OKLO shifts across timeframes, from -0.09 (1 year) to 0.06 (all time), reflecting how their relationship changes across market environments.

Return for Risk

XLE vs. OKLO — Risk / Return Rank

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

XLE

XLE Risk / Return Rank: 61
XLE Sharpe Ratio Rank: 64
XLE Sortino Ratio Rank: 58
XLE Omega Ratio Rank: 54
XLE Calmar Ratio Rank: 71
XLE Martin Ratio Rank: 56

OKLO

OKLO Risk / Return Rank: 41
OKLO Sharpe Ratio Rank: 39
OKLO Sortino Ratio Rank: 46
OKLO Omega Ratio Rank: 44
OKLO Calmar Ratio Rank: 39
OKLO Martin Ratio Rank: 39

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.

XLE vs. OKLO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Energy Select Sector SPDR ETF (XLE) 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.

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.

	XLE	OKLO	Difference
Sharpe ratio: Return per unit of total volatility	1.82	-0.11	+1.92
Sortino ratio: Return per unit of downside risk	2.40	0.60	+1.81
Omega ratio: Gain probability vs. loss probability	1.30	1.06	+0.23
Calmar ratio: Return relative to maximum drawdown	3.10	-0.15	+3.25
Martin ratio: Return relative to average drawdown	8.63	-0.24	+8.87

XLE vs. OKLO - Sharpe Ratio Comparison

The current XLE Sharpe Ratio is 1.82, which is higher than the OKLO Sharpe Ratio of -0.11. The chart below compares the historical Sharpe Ratios of XLE and OKLO, 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

XLE vs. OKLO - Drawdown Comparison

The maximum XLE drawdown since its inception was -71.26%, roughly equal to the maximum OKLO drawdown of -73.83%. Use the drawdown chart below to compare losses from any high point for XLE and OKLO.

Drawdown Indicators

	XLE	OKLO	Difference
Max Drawdown Largest peak-to-trough decline	-71.26%	-73.83%	+2.57%
Max Drawdown (1Y) Largest decline over 1 year	-12.05%	-73.83%	+61.78%
Max Drawdown (3Y) Largest decline over 3 years	-20.14%	-73.83%	+53.69%
Max Drawdown (5Y) Largest decline over 5 years	-26.04%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-66.81%	—	—
Current Drawdown Current decline from peak	-8.01%	-66.99%	+58.98%
Average Drawdown Average peak-to-trough decline	-17.97%	-18.13%	+0.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.32%	45.70%	-41.38%

Volatility

XLE vs. OKLO - Volatility Comparison

The current volatility for State Street Energy Select Sector SPDR ETF (XLE) is 7.26%, while Oklo Inc. (OKLO) has a volatility of 27.86%. This indicates that XLE experiences smaller price fluctuations and is considered to be less risky than OKLO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	XLE	OKLO	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.26%	27.86%	-20.60%
Volatility (6M) Calculated over the trailing 6-month period	16.79%	69.66%	-52.87%
Volatility (1Y) Calculated over the trailing 1-year period	20.57%	101.88%	-81.31%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.05%	85.88%	-59.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	29.58%	85.88%	-56.30%

Dividends

XLE vs. OKLO - Dividend Comparison

XLE's dividend yield for the trailing twelve months is around 2.59%, while OKLO has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
XLE State Street Energy Select Sector SPDR ETF	2.59%	3.28%	3.36%	3.55%	3.68%	4.21%	5.62%	6.72%	3.54%	3.03%	2.26%	3.39%

Frequently Asked Questions

Can I hold both XLE and OKLO in my portfolio?

XLE and OKLO have a correlation of -0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, XLE or OKLO?

OKLO has higher volatility (27.86%) compared to XLE (7.26%). In terms of maximum drawdown, XLE dropped -71.26% vs OKLO's -73.83%.

Which has better risk-adjusted returns?

XLE currently has the higher Sharpe Ratio (1.82 vs -0.11), 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.