SeriesMagCorrOverlapThrough
These move opposite each other about 53% 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
Shopify offers an e-commerce platform primarily to small and medium-size businesses. The firm has two segments. The subscription solutions segment allows Shopify merchants to conduct e-commerce on a variety of platforms, including the company's website, physical stores, pop-up stores, kiosks, social networks (Facebook), and Amazon. The merchant solutions segment offers add-on products for the platform that facilitate e-commerce and include Shopify Payments, Shopify Shipping, and Shopify Capital.
What to Watch
Holds across regimes
Correlation is similar when markets rise (-0%) and fall (+8%) — 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
-65%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with Shopify Inc. Class A subordinate voting shares 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
-65%
Pearson correlation
95% CI
-68% → -61%
Likely range
R²
41.9%
Variance explained
Trend agreement
52.9%
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 165.8B · 7,600 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
-0%
77 periods · Return correlation when both series rose
Both Falling
+8%
79 periods · Return correlation when both series fell
Diverging
-45%
93 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
Shopify Inc. Class A subordinate voting shares
SHOP
Market cap 165.8B · 7,600 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
16
Estimated crossover points between normalized spreads.
Slope
-0.3094
Linear regression slope.
Intercept
232.5439
Linear regression intercept.
Saved 58 minutes ago · ID: stock-shop_stock-unh_5y
SHOP
Shopify Inc. Class A subordinate voting shares
Strongest positive