Correlation Analysis
Costco Wholesale Corp vs Verizon Communications
COST vs VZ
-0.257
Light inverse
When one moves up, the other tends to move down.
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
Verizon Communications
↗VZ
Wireless services account for 75% of Verizon Communications' total service revenue and nearly all of its operating income. The firm serves about 94 million postpaid and 20 million prepaid phone customers via its nationwide network, making it the largest US wireless carrier. Fixed-line telecom operations include local networks in the Northeast that reach about 30 million homes and businesses, including about 20 million served by the Fios fiber-optic network. Verizon closed its acquisition of Frontier Communications in January, adding networks that reach another 15 million locations, including 9 million with fiber. These networks serve about 11 million broadband customers. Verizon also provides telecom services nationwide to enterprise customers, using a mix of its own and other networks.
Market cap 207.3B
Time Series
Relative Performance
Who Moves First
VZ leads COST by 6 days
VZ tends to move before COST.
After testing 13 timing shifts, the strongest relationship was -0.267 (they moved in opposite directions).
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
+0.522
10 periods · Return correlation when both series rose
Both Falling
+0.049
6 periods · Return correlation when both series fell
Diverging
-0.432
19 periods · Return correlation when series moved apart
R-Squared
6.6%
Share of variance in one series explained by the other.
Trend Agreement
54.9%
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: [-0.308, -0.204]
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
Verizon Communications
VZ
Market cap 207.3B
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
-0.0081
Linear regression slope.
Intercept
49.2871
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-cost-vs-stock-vz-daily