COST 52-week position: the current reading and its track record
COST’s current 52-week position reading and what that signal has historically been followed by.
COST is currently at 57.5% of its 52-week range, as of 2026-10-16.
This page covers Costco (COST) — its current 52-week position reading and the measured historical record of what COST 52-week position extremes were followed by.
How to read this. These figures are measured only on instruments currently covered by this site — a set of companies that survived. Signals that appear to have ‘worked’ on the downside are conditioned on these names having recovered; a company that fell and never came back would not be here to measure. Read every number below as a property of this surviving sample, not a universal rule, and never as advice.
All figures are ‘excess’ returns — measured relative to each instrument’s own historical drift, not relative to the market. This is not alpha and not a market-beating claim; it isolates the signal from the instrument’s background trend. Measured from the first day each signal appeared (not its most extreme point), so it reflects what was knowable in real time.
Measured across COST’s 52-week position history from 1987 to 2026: 106 high-extreme episodes. High-extreme readings were followed by -0.51% excess at 5 sessions and -1.36% by 20.
On this signal, the most recent episode in which COST was at a high extreme began on 2026-05-18.
Outcomes are measured for episodes up to 2026-05-18, the most recent with enough later sessions to score. The current reading above is from a later date, 2026-10-16.
When COST was at a high extreme
Across 106 past episodes where COST was at a high extreme on this signal, the close 20 sessions later lagged COST’s own trailing drift by 1.36 percentage points on average (41% of episodes beat drift).
| horizon | excess vs own drift | beat-drift rate | episodes with a complete horizon |
|---|---|---|---|
| 1 session | >-0.01% | 51% | 106 |
| 5 sessions | -0.51% | 46% | 106 |
| 20 sessions | -1.36% | 41% | 106 |
When COST was at a low extreme
COST has only 16 past episodes on this signal — too few to characterise on their own. Showing the all-stocks pattern instead.
Across 1554 past episodes where a stock was at a low extreme on this signal, the 1552 with a complete 20-session forward window beat the stock’s own trailing drift by 0.30 percentage points on average (51% of those 1552 beat drift).
| horizon | excess vs own drift | beat-drift rate | episodes with a complete horizon |
|---|---|---|---|
| 1 session | +0.26% | 50% | 1554 |
| 5 sessions | +0.38% | 53% | 1554 |
| 20 sessions | +0.30% | 51% | 1552 |
← all instruments on 52-week position
See COST’s current price, RSI, moving averages and 52-week range →