AMZNVSCOST• Today (Normalized)
AMZN vs COST (Amazon.com Inc. vs Costco Wholesale Corporation)
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
AMZN Performance $258.51
-0.15%
Amazon.com Inc.
Normalized Baseline0.00%
COST Performance $915.74
-1.04%
Costco Wholesale Corporation
Normalized Baseline0.00%
Alpha Spread Margin AMZN LEADS
+0.89%
AMZN outperforming by 0.89%
AMZNCOST
Spread TrajectoryToday (Normalized)
Cumulative Performance Trajectory
Interactive divergence comparison normalized at 0.00% on start date.
AMZN COST
Comparative Historical Ledger
Daily closing prices, normalized percentages, and relative spread divergence.
Historical Quotes & Breakdown(2 dates)
| Date | AMZN Price | AMZN Gain (%) | COST Price | COST Gain (%) | Spread |
|---|---|---|---|---|---|
| Sep 03, 2026 | $258.90 | +0.00% | $925.41 | +0.00% | +0.00% |
| Sep 04, 2026 | $258.51 | -0.15% | $915.74 | -1.04% | +0.89% |