IXUS: how its history is extended
IXUS returns from its first trading day; earlier history from VXUS. (represented by the intl_total asset chain before its own history)
Kind
Backfill chain
Extended from
1990-06-20
Through
2026-10-09
Sources
IXUS → VXUS
Validation at each junction
| Real series | Stands in before it | Real data from | Overlap (years) | Monthly correlation | Return gap (pp/yr) | Gate |
|---|---|---|---|---|---|---|
| IXUS | VXUS | 2012-10-24 | 13.96 | 0.9986 | -0.07 | pass (bars: corr ≥ 0.9, |gap| ≤ 1.0pp) |
| VXUS | VGTSX | 2011-01-28 | 15.7 | 0.9987 | 0.082 | pass (bars: corr ≥ 0.9, |gap| ≤ 1.0pp) |
| VXUS | VXUS (synthetic) | 1996-04-30 | 30.44 | 0.9883 | -0.165 | pass (bars: corr ≥ 0.9, |gap| ≤ 1.0pp) |
Figures on this page are computed from the data store when the page renders; the gate is re-checked every time an extension is used. Method: the lab's tracking standard, lab.data.chains.