ROCK vs. COST
ROCK (Gibraltar Industries, Inc.) and COST (Costco Wholesale Corporation) are both stocks. ROCK operates in Building Products & Equipment (Industrials), while COST operates in Discount Stores (Consumer Defensive). Over the past 10 years, ROCK returned 2.02%/yr vs 22.34%/yr for COST. At a 0.21 correlation, their price movements are largely independent.
Performance
ROCK vs. COST - Performance Comparison
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Returns By Period
In the year-to-date period, ROCK achieves a -23.89% return, which is significantly lower than COST's 11.85% return. Over the past 10 years, ROCK has underperformed COST with an annualized return of 2.02%, while COST has yielded a comparatively higher 22.34% annualized return.
ROCK
- 1D
- -1.05%
- 1M
- 1.92%
- YTD
- -23.89%
- 6M
- -25.28%
- 1Y
- -36.38%
- 3Y*
- -12.81%
- 5Y*
- -13.10%
- 10Y*
- 2.02%
COST
- 1D
- 0.79%
- 1M
- -5.03%
- YTD
- 11.85%
- 6M
- 4.58%
- 1Y
- -8.37%
- 3Y*
- 25.00%
- 5Y*
- 21.24%
- 10Y*
- 22.34%
ROCK vs. COST - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ROCK Gibraltar Industries, Inc. | -23.89% | -16.06% | -25.42% | 72.14% | -31.19% | -7.31% | 42.62% | 41.73% | 7.85% | -20.77% |
COST Costco Wholesale Corporation | 11.85% | -5.39% | 39.62% | 49.00% | -19.05% | 51.82% | 32.67% | 45.70% | 10.60% | 22.37% |
Correlation
The correlation between ROCK and COST is -0.03, 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 | -0.03 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.14 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.23 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.23 |
Correlation (All Time) Calculated using the full available price history since Nov 8, 1993 | 0.21 |
The correlation between ROCK and COST shifts across timeframes, from -0.03 (1 year) to 0.23 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
ROCK:
$0.30
COST:
$26.51
ROCK:
125.32
COST:
36.29
ROCK:
10.12
COST:
2.84
ROCK:
0.94
COST:
1.09
ROCK:
$1.20B
COST:
$293.59B
ROCK:
$306.36M
COST:
$11.12B
ROCK:
$116.44M
COST:
$12.48B
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Return for Risk
ROCK vs. COST — Risk / Return Rank
ROCK
COST
ROCK vs. COST - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Gibraltar Industries, Inc. (ROCK) 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.
| ROCK | COST | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.31 | ||
| Sortino ratioReturn per unit of downside risk | -0.39 | ||
| Omega ratioGain probability vs. loss probability | 0.88 | 0.94 | -0.06 |
| Calmar ratioReturn relative to maximum drawdown | -0.67 | -0.44 | -0.22 |
| Martin ratioReturn relative to average drawdown | -1.22 | -0.88 | -0.34 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| ROCK | COST | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.75 | -0.44 | -0.31 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.33 | 0.94 | -1.27 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.05 | 1.02 | -0.97 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.11 | 0.59 | -0.48 |
Drawdowns
ROCK vs. COST - Drawdown Comparison
The maximum ROCK drawdown since its inception was -88.34%, which is greater than COST's maximum drawdown of -53.39%. Use the drawdown chart below to compare losses from any high point for ROCK and COST.
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Drawdown Indicators
| ROCK | COST | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -88.34% | -53.39% | -34.95% |
Max Drawdown (1Y)Largest decline over 1 year | -54.65% | -18.95% | -35.70% |
Max Drawdown (3Y)Largest decline over 3 years | -61.21% | -20.74% | -40.47% |
Max Drawdown (5Y)Largest decline over 5 years | -61.21% | -31.40% | -29.81% |
Max Drawdown (10Y)Largest decline over 10 years | -66.51% | -31.40% | -35.11% |
Current DrawdownCurrent decline from peak | -62.74% | -12.11% | -50.63% |
Average DrawdownAverage peak-to-trough decline | -32.25% | -13.36% | -18.89% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 29.90% | 9.86% | +20.04% |
Volatility
ROCK vs. COST - Volatility Comparison
Gibraltar Industries, Inc. (ROCK) has a higher volatility of 16.51% compared to Costco Wholesale Corporation (COST) at 8.05%. This indicates that ROCK'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.
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Volatility by Period
| ROCK | COST | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 16.51% | 8.05% | +8.46% |
Volatility (6M)Calculated over the trailing 6-month period | 34.97% | 14.83% | +20.14% |
Volatility (1Y)Calculated over the trailing 1-year period | 48.64% | 19.12% | +29.52% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 39.69% | 22.73% | +16.96% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 38.81% | 21.95% | +16.86% |
Dividends
ROCK vs. COST - Dividend Comparison
ROCK has not paid dividends to shareholders, while COST's dividend yield for the trailing twelve months is around 0.56%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
COST Costco Wholesale Corporation | 0.56% | 0.59% | 0.49% | 2.87% | 0.76% | 0.54% | 3.38% | 0.86% | 1.08% | 4.81% | 1.09% | 4.06% |
ROCK Gibraltar Industries, 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% |
Financials
ROCK vs. COST - Financials Comparison
This section allows you to compare key financial metrics between Gibraltar Industries, Inc. and Costco Wholesale Corporation. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
ROCK vs. COST - Profitability Comparison
ROCK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Gibraltar Industries, Inc. reported a gross profit of 78.87M and revenue of 356.29M. Therefore, the gross margin over that period was 22.1%.
COST - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Costco Wholesale Corporation reported a gross profit of -17.68B and revenue of 70.53B. Therefore, the gross margin over that period was -25.1%.
ROCK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Gibraltar Industries, Inc. reported an operating income of -4.46M and revenue of 356.29M, resulting in an operating margin of -1.3%.
COST - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Costco Wholesale Corporation reported an operating income of 2.82B and revenue of 70.53B, resulting in an operating margin of 4.0%.
ROCK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Gibraltar Industries, Inc. reported a net income of -67.47M and revenue of 356.29M, resulting in a net margin of -18.9%.
COST - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Costco Wholesale Corporation reported a net income of 2.19B and revenue of 70.53B, resulting in a net margin of 3.1%.
Frequently Asked Questions
ROCK and COST have a correlation of -0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ROCK has higher volatility (16.51%) compared to COST (8.05%). In terms of maximum drawdown, ROCK dropped -88.34% vs COST's -53.39%.
COST currently has the higher Sharpe Ratio (-0.44 vs -0.75), 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.
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