Correlation Analysis
Costco Wholesale Corp vs Occidental Petroleum Corporation
COST vs OXY
-0.016
Near-zero inverse
When one moves up, the other tends to move down.
Costco Wholesale Corp
↗COST
Founded in 1983, Costco Wholesale now operates a global chain of membership-based warehouse clubs, delivering high-quality goods and services at consistently low prices. As of its most recent fiscal year, Costco operated approximately 910 warehouses, serving more than 80 million members across its three geographic segments: Costco US (approximately 73% of total revenue), Costco Canada (13%), and Costco International (14%).Costco's core value proposition—quality products at unbeatable prices—has yielded consistently strong member renewal rates (93% in the US and Canada and nearly 90% internationally). About 55% of Costco's fiscal 2025 revenue came from its grocery offerings, and another 25% from general merchandise.
Market cap 451.9B
Occidental Petroleum Corporation
↗OXY
Occidental Petroleum is an independent exploration and production company with operations in the United States, Latin America, and the Middle East. At the end of 2024, the company reported net proved reserves of 4.6 billion barrels of oil equivalent. Net production averaged 1.326 million barrels of oil equivalent per day in 2024 at a ratio of roughly 52% oil and natural gas liquids and 48% natural gas.
Market cap 62.4B · 10,412 employees
Time Series
Relative Performance
Who Moves First
COST leads OXY by 6 days
COST tends to move before OXY.
After testing 13 timing shifts, the strongest relationship was -0.030 (they moved in opposite directions).
Do They Crash Together?
Correlation by Market Regime
How these series behave when markets are rising, falling, or diverging. A correlation that holds in drawdowns is very different from one that only works in rallies.
Both Rising
-0.058
13 periods · Return correlation when both series rose
Both Falling
+0.514
7 periods · Return correlation when both series fell
Diverging
-0.765
15 periods · Return correlation when series moved apart
R-Squared
0.0%
Share of variance in one series explained by the other.
Trend Agreement
52.1%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,254
Deep shared window — 1,254 usable pairs.
Significance
n.s.
95% CI: [-0.071, 0.039]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired data points survived the daily window.
Raw input
1,254
1,254
Normalized
1,254
1,254
Prepared
1,254
1,254
Aligned
1,254
1,254
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
Costco Wholesale Corp
COST
Market cap 451.9B
Stock · 1,254 raw → 1,254 prepared
Series B
Occidental Petroleum Corporation
OXY
Market cap 62.4B · 10,412 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
-0.0010
Linear regression slope.
Intercept
52.1579
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
COST
Costco Wholesale Corp
Highest
+0.977
Republic Services Inc.
RSG · 1,254 data points
Lowest
-0.912
Fiserv, Inc. Common Stock
FISV · 644 data points
OXY
Occidental Petroleum Corporation
Highest
+0.593
Exxon Mobil Corporation
XOM · 1,254 data points
Lowest
-0.478
Amazon.Com Inc
AMZN · 1,254 data points
Saved 7 hours ago · ID: stock-cost-vs-stock-oxy-daily