SeriesMagCorrOverlapThrough
These move together about 54% of the time
Strong positive
Strong enough to use as a signal — read the stability and regime notes below before relying on it.
The wireless business contributes nearly 70% of AT&T's revenue. The company is the third-largest US wireless carrier, connecting 74 million postpaid and 17 million prepaid phone customers. Fixed-line enterprise services, which account for about 14% of revenue, include internet access, private networking, security, voice, and wholesale network capacity. Residential services, about 11% of revenue, primarily consist of in-home broadband internet access, serving 15 million customers. AT&T also has a sizable presence in Mexico, with 25 million wireless customers, but this business only accounts for 3% of revenue. The company recently sold its 70% equity stake in satellite television provider Dire
Market cap 181.1B · 133,030 employees
Alibaba is the world's largest online and mobile commerce company as measured by gross merchandise volume. It operates China's online marketplaces, including Taobao (consumer-to-consumer) and Tmall (business-to-consumer). The China retail e-commerce platform is the most valuable cash flow-generating business at Alibaba. Additional revenue sources include China wholesale e-commerce, international retail and wholesale e-commerce, local consumer services, travel services, cloud computing, digital media and entertainment, Cainiao logistics services, and other businesses.
What to Watch
Unusual right now
Recent correlation (-53%) is 3.1σ from the long-run average of +79% — pair is behaving differently than usual.
Holds across regimes
Correlation is similar when markets rise (+25%) and fall (+35%) — 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
+79%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with Alibaba Group Holding Limited American Depositary Shares, each represents eight Ordinary 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
+79%
Pearson correlation
95% CI
+77% → +81%
Likely range
R²
62.5%
Variance explained
Trend agreement
54.1%
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 317.9B · 128,197 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
+25%
75 periods · Return correlation when both series rose
Both Falling
+35%
69 periods · Return correlation when both series fell
Diverging
-64%
105 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
AT&T Inc.
T
Market cap 181.1B · 133,030 employees
Stock · 1,255 raw → 1,255 prepared
Series B
Alibaba Group Holding Limited American Depositary Shares, each represents eight Ordinary Shares
BABA
Market cap 317.9B · 128,197 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
50
Estimated crossover points between normalized spreads.
Slope
6.3625
Linear regression slope.
Intercept
-26.3247
Linear regression intercept.
Saved 1 hour ago · ID: stock-baba_stock-t_5y
BABA
Alibaba Group Holding Limited American Depositary Shares, each represents eight Ordinary Shares
Strongest positive