CIVSCOST• 28 Days (Normalized)
CI vs COST (The Cigna Group vs Costco Wholesale Corporation)
Showing Closing Date Range from Sep 10 to Oct 8, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
CI Performance $281.03
+0.04%
The Cigna Group
Normalized Baseline0.00%
COST Performance $947.92
+5.05%
Costco Wholesale Corporation
Normalized Baseline0.00%
Alpha Spread Margin COST LEADS
-5.01 pts
COST outperforming by 5.01 percentage points
CICOST
Spread Trajectory28 Days (Normalized)
Cumulative Performance Trajectory
Interactive divergence comparison normalized at 0.00% on start date.
CI COST
Comparative Historical Ledger
Daily closing prices, normalized percentages, and relative spread divergence.
Historical Quotes & Breakdown(19 dates)
| Date | CI Price | CI Gain (%) | COST Price | COST Gain (%) | Spread |
|---|---|---|---|---|---|
| Oct 08, 2026 | $281.03 | +0.04% | $947.92 | +5.05% | -5.01% |
| Oct 07, 2026 | $278.51 | -0.85% | $942.25 | +4.42% | -5.27% |
| Oct 06, 2026 | $274.37 | -2.33% | $935.68 | +3.69% | -6.02% |
| Oct 05, 2026 | $271.29 | -3.42% | $923.52 | +2.34% | -5.76% |
| Oct 02, 2026 | $270.53 | -3.70% | $920.65 | +2.02% | -5.72% |
| Oct 01, 2026 | $267.96 | -4.61% | $- | - | |
| Sep 30, 2026 | $271.83 | -3.23% | $- | - | |
| Sep 29, 2026 | $275.26 | -2.01% | $- | - | |
| Sep 24, 2026 | $265.50 | -5.49% | $896.48 | -0.65% | -4.84% |
| Sep 23, 2026 | $268.27 | -4.50% | $904.70 | +0.26% | -4.76% |
| Sep 22, 2026 | $273.74 | -2.55% | $899.41 | -0.33% | -2.22% |
| Sep 21, 2026 | $274.47 | -2.29% | $898.48 | -0.43% | -1.86% |
| Sep 18, 2026 | $275.28 | -2.00% | $895.31 | -0.78% | -1.22% |
| Sep 17, 2026 | $276.00 | -1.75% | $893.93 | -0.94% | -0.81% |
| Sep 16, 2026 | $280.45 | -0.16% | $893.74 | -0.96% | +0.80% |
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