Correlation Analysis
Ameriprise Financial, Inc. vs Costco Wholesale Corp
AMP vs COST
+0.955
Very strong positive
When one moves up, the other tends to follow.
Ameriprise Financial, Inc.
↗AMP
Ameriprise Financial has evolved into a diversified financial services provider that generates roughly 65% of its operating income from advice and wealth management. With nearly $1.2 trillion in segment assets under management and advisory at year-end 2025, and with roughly 10,600 affiliated and employee advisors, Ameriprise is one of the larger US-based wealth managers. It also boasts a reasonably large asset management franchise in Columbia Threadneedle, which boasted $678 billion in assets under management at year-end 2025. The firm's third key segment is its retirement and protection services business, which sells insurance products to the firm's advisory clients. After eliminations, Ameriprise had $1.69 trillion in assets under management and advisory across segments at year-end 2025.
Market cap 39B · 13,600 employees
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
Time Series
Relative Performance
Who Moves First
AMP leads COST by 6 days
AMP tends to move before COST.
After testing 13 timing shifts, the strongest relationship was +0.956 (they moved in the same direction).
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
+0.114
14 periods · Return correlation when both series rose
Both Falling
+0.540
5 periods · Return correlation when both series fell
Diverging
-0.506
16 periods · Return correlation when series moved apart
R-Squared
91.1%
Share of variance in one series explained by the other.
Trend Agreement
61.5%
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: [0.949, 0.959]
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
Ameriprise Financial, Inc.
AMP
Market cap 39B · 13,600 employees
Stock · 1,254 raw → 1,254 prepared
Series B
Costco Wholesale Corp
COST
Market cap 451.9B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
15
Estimated crossover points between normalized spreads.
Slope
2.0786
Linear regression slope.
Intercept
-103.3572
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 4 hours ago · ID: stock-amp-vs-stock-cost-daily