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.
Since its founding in 1962, Walmart has become the world's largest retailer, operating over 10,700 stores globally (including 4,600 namesake locations on its home turf and another 600 Sam's Club outlets) and growing its e-commerce presence, attracting 270 million customers weekly. In aggregate, the firm posted more than $680 billion in fiscal 2025 sales. Its core operations span three reporting segments: Walmart US (68% of fiscal 2025 sales), Walmart International (18%), and Sam's Club (14%). Within the US, nearly 60% of its $465 billion in fiscal 2025 revenue came from its grocery offerings, with another quarter from general merchandise. Internationally, Walmart's operations are concentrate
Market cap 1T · 2,100,000 employees
SNDL Inc is a private-sector liquor and cannabis retailer in Canada with retail banners that include Ace Liquor, Wine and Beyond, Liquor Depot, Value Buds, and Spiritleaf. The principal activities of the company are the retailing of wines, beers, and spirits. It comprised four reportable segments: liquor retail, cannabis retail, cannabis operations, and investments. Liquor retail includes the sale of wines, beers, and spirits through owned liquor stores. The company generates maximum revenue from liquor retail.
What to Watch
Holds across regimes
Correlation is similar when markets rise (-21%) and fall (-7%) — 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
-44%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with Sundial Growers Inc. Common 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
-44%
Pearson correlation
95% CI
-48% → -39%
Likely range
R²
19.3%
Variance explained
Trend agreement
53.2%
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.
Market cap 367M · 2,604 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
-21%
68 periods · Return correlation when both series rose
Both Falling
-7%
75 periods · Return correlation when both series fell
Diverging
-13%
106 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
Walmart Inc. Common Stock
WMT
Market cap 1T · 2,100,000 employees
Stock · 1,255 raw → 1,255 prepared
Series B
Sundial Growers Inc. Common Shares
SNDL
Market cap 367M · 2,604 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
-0.0375
Linear regression slope.
Intercept
5.4973
Linear regression intercept.
Saved 1 hour ago · ID: stock-sndl_stock-wmt_5y
SNDL
Sundial Growers Inc. Common Shares
Strongest positive