Costco ATR: How Wilder Smoothing Remembers Ranges
Summary
Hollow Point Trading shares a short lesson on why two 14-period ATR readings can differ when their smoothing methods differ. The historical Costco IEX example uses completed five-minute bars from October 8, 2026, explaining how Wilder smoothing is seeded from the first 14 true ranges and updated recursively.
https://youtu.be/QYL8EaYWMxw
COST ATR: Wilder smoothing remembers earlier ranges #Shorts

Two fourteen period ATR readings can differ because their smoothing differs. This historical Costco IEX example uses completed five minute bars from October eighth, twenty twenty six. We seed Wilder smoothing with the first fourteen available true ranges, then update recursively. Before the highlighted bar, the smoothed range is approximately on...