IREN vs. COST

Last updated Jun 13, 2026

IREN (IREN Limited) and COST (Costco Wholesale Corporation) are both stocks. IREN operates in Capital Markets (Financial Services), while COST operates in Discount Stores (Consumer Defensive). Over the past 3 years, IREN returned 155.58%/yr vs 25.12%/yr for COST. At a 0.17 correlation, their price movements are largely independent.

Performance

IREN vs. COST - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in IREN Limited (IREN) and Costco Wholesale Corporation (COST). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IREN achieves a 58.25% return, which is significantly higher than COST's 14.24% return.

IREN

• 1D: 5.40%
• 1M: 8.34%
• YTD: 58.25%
• 6M: 48.94%
• 1Y: 487.71%
• 3Y*: 155.58%
• 5Y*: —
• 10Y*: —

COST

• 1D: 0.68%
• 1M: -4.91%
• YTD: 14.24%
• 6M: 11.38%
• 1Y: -1.48%
• 3Y*: 25.12%
• 5Y*: 22.12%
• 10Y*: 22.27%

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

IREN vs. COST - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
IREN IREN Limited	58.25%	284.62%	37.34%	472.00%	-92.27%	-42.25%
COST Costco Wholesale Corporation	14.24%	-5.39%	39.62%	49.00%	-19.05%	7.78%

Correlation

The correlation between IREN and COST is -0.04, 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	-0.04
Correlation (3Y) Calculated over the trailing 3-year period	0.13
Correlation (All Time) Calculated using the full available price history since Nov 17, 2021	0.17

The correlation between IREN and COST shifts across timeframes, from -0.04 (1 year) to 0.17 (all time), reflecting how their relationship changes across market environments.

Fundamentals

EPS IREN : $0.45 COST : $26.51
PE Ratio IREN : 131.80 COST : 37.06
PS Ratio IREN : 13.39 COST : 1.12
Total Revenue (TTM) IREN : $757.07M COST : $293.59B
Gross Profit (TTM) IREN : $433.88M COST : $11.12B
EBITDA (TTM) IREN : -$173.05M COST : $12.48B

Return for Risk

IREN vs. COST — Risk / Return Rank

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

IREN

IREN Risk / Return Rank: 95
IREN Sharpe Ratio Rank: 99
IREN Sortino Ratio Rank: 94
IREN Omega Ratio Rank: 91
IREN Calmar Ratio Rank: 97
IREN Martin Ratio Rank: 94

COST

COST Risk / Return Rank: 37
COST Sharpe Ratio Rank: 40
COST Sortino Ratio Rank: 32
COST Omega Ratio Rank: 32
COST Calmar Ratio Rank: 40
COST 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.

IREN vs. COST - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for IREN Limited (IREN) and Costco Wholesale Corporation (COST). 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.

	IREN	COST	Difference
Sharpe ratio: Return per unit of total volatility	4.76	-0.08	+4.84
Sortino ratio: Return per unit of downside risk	3.66	0.02	+3.64
Omega ratio: Gain probability vs. loss probability	1.42	1.00	+0.42
Calmar ratio: Return relative to maximum drawdown	8.39	-0.10	+8.49
Martin ratio: Return relative to average drawdown	15.97	-0.22	+16.19

IREN vs. COST - Sharpe Ratio Comparison

The current IREN Sharpe Ratio is 4.76, which is higher than the COST Sharpe Ratio of -0.08. The chart below compares the historical Sharpe Ratios of IREN and COST, 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

IREN vs. COST - Drawdown Comparison

The maximum IREN drawdown since its inception was -96.21%, which is greater than COST's maximum drawdown of -53.39%. Use the drawdown chart below to compare losses from any high point for IREN and COST.

Drawdown Indicators

	IREN	COST	Difference
Max Drawdown Largest peak-to-trough decline	-96.21%	-53.39%	-42.82%
Max Drawdown (1Y) Largest decline over 1 year	-58.62%	-15.14%	-43.48%
Max Drawdown (3Y) Largest decline over 3 years	-65.56%	-20.74%	-44.82%
Max Drawdown (5Y) Largest decline over 5 years	—	-31.40%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-31.40%	—
Current Drawdown Current decline from peak	-21.78%	-10.23%	-11.55%
Average Drawdown Average peak-to-trough decline	-65.42%	-13.36%	-52.06%
Ulcer Index Depth and duration of drawdowns from previous peaks	30.74%	6.67%	+24.07%

Volatility

IREN vs. COST - Volatility Comparison

IREN Limited (IREN) has a higher volatility of 34.10% compared to Costco Wholesale Corporation (COST) at 7.44%. This indicates that IREN's price experiences larger fluctuations and is considered to be riskier than COST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IREN	COST	Difference
Volatility (1M) Calculated over the trailing 1-month period	34.10%	7.44%	+26.66%
Volatility (6M) Calculated over the trailing 6-month period	75.79%	14.53%	+61.26%
Volatility (1Y) Calculated over the trailing 1-year period	103.25%	18.80%	+84.45%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	118.61%	22.72%	+95.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	118.61%	21.95%	+96.66%

Dividends

IREN vs. COST - Dividend Comparison

IREN has not paid dividends to shareholders, while COST's dividend yield for the trailing twelve months is around 0.55%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COST Costco Wholesale Corporation	0.55%	0.59%	0.49%	2.87%	0.76%	0.54%	3.38%	0.86%	1.08%	4.81%	1.09%	4.06%
IREN IREN Limited	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both IREN and COST in my portfolio?

IREN and COST have a correlation of -0.04, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IREN or COST?

IREN has higher volatility (34.10%) compared to COST (7.44%). In terms of maximum drawdown, IREN dropped -96.21% vs COST's -53.39%.

Which has better risk-adjusted returns?

IREN currently has the higher Sharpe Ratio (4.76 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.