Correlation Analysis
Costco Wholesale Corp vs Royal Caribbean Group
COST vs RCL
+0.906
Very strong positive
When one moves up, the other tends to follow.
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
Royal Caribbean Group
↗RCL
Royal Caribbean is the world's second-largest cruise company by revenues, operating 69 ships across five global and partner brands in the cruise vacation industry. Brands the company operates include Royal Caribbean International, Celebrity Cruises, and Silversea. The company also has a 50% investment in a joint venture that operates TUI Cruises and Hapag-Lloyd Cruises. The selection of brands in the portfolio allows Royal to compete on the basis of innovation, quality of ships and service, variety of itineraries, choice of destinations, and price. The company completed the divestiture of its Azamara brand in 2021, plans to launch its new Celebrity River Cruise brand in 2027, and is set to operate eight private destination locations by 2028 (up from three currently).
Market cap 74.6B · 108,000 employees
Time Series
Relative Performance
Who Moves First
COST leads RCL by 6 days
COST tends to move before RCL.
After testing 13 timing shifts, the strongest relationship was +0.908 (they moved in the same direction).
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
+0.638
14 periods · Return correlation when both series rose
Both Falling
+0.678
6 periods · Return correlation when both series fell
Diverging
-0.528
15 periods · Return correlation when series moved apart
R-Squared
82.2%
Share of variance in one series explained by the other.
Trend Agreement
58.8%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,254
Deep shared window — 1,254 usable pairs.
Significance
p < 0.001
95% CI: [0.896, 0.916]
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
Royal Caribbean Group
RCL
Market cap 74.6B · 108,000 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
0.3843
Linear regression slope.
Intercept
-118.1781
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-cost-vs-stock-rcl-daily