These move opposite each other about 52% of the time
Moderate inverse
A real but noisy link — useful as context, risky as a standalone signal.
UnitedHealth Group is one of the largest private health insurers and provides medical benefits to about 51 million members globally, including 1 million outside the US as of December 2025. As a leader in employer-sponsored, self-directed, and government-backed insurance plans, UnitedHealth has obtained massive scale in medical insurance. Along with its insurance assets, UnitedHealth's Optum franchises help create a healthcare services colossus that spans everything from pharmaceutical benefits to providing outpatient care and analytics to affiliates and third parties.
Market cap 333.1B · 390,000 employees
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 o
What to Watch
Holds across regimes
Correlation is similar when markets rise (+15%) and fall (+6%) — reliable in both directions.
Regime-dependent
The correlation has flipped sign across time windows — not reliable as a standalone signal.
Time Series
Time-Shifted Correlation
See how correlation changes when one series is offset in time. A taller bar at a non-zero shift means the two move together better when one leads the other — that's a potential lead/lag signal.
Correlation by shift
Click a bar to inspect. Range: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
-60%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with Royal Caribbean Group at original dates
Indexed to 100 at start
Deep Dive
Stability
How the correlation evolves over time. A stable line means the relationship is reliable; large swings signal regime-dependent behavior.
Corr
-60%
Pearson correlation
95% CI
-63% → -56%
Likely range
R²
35.7%
Variance explained
Trend agreement
52.2%
Same-direction moves
Significance
p < 0.001
Statistical confidence
Data points
1,255
Deep
Pipeline
Pipeline Summary
1,255 paired data points survived the daily window.
Raw input
1,255
1,255
Normalized
1,255
1,255
Prepared
1,255
1,255
Aligned
1,255
1,255
Invalid removed
Explore
The strongest positive and inverse pairs we’ve saved for each side of this comparison — good jumping-off points if this result raised a question.
UNH
UNITEDHEALTH GROUP INCORPORATED (Delaware)
Strongest inverse
Market cap 69.4B · 108,000 employees
Do They Crash Together?
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
+15%
82 periods · Return correlation when both series rose
Both Falling
+6%
73 periods · Return correlation when both series fell
Diverging
-38%
94 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
UNITEDHEALTH GROUP INCORPORATED (Delaware)
UNH
Market cap 333.1B · 390,000 employees
Stock · 1,255 raw → 1,255 prepared
Series B
Royal Caribbean Group
RCL
Market cap 69.4B · 108,000 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
17
Estimated crossover points between normalized spreads.
Slope
-0.6333
Linear regression slope.
Intercept
439.4577
Linear regression intercept.
Saved 58 minutes ago · ID: stock-rcl_stock-unh_5y
RCL
Royal Caribbean Group
Strongest positive