VFITX: how its history is extended
VFITX returns from its first trading day; earlier history from DGS5.CM. (represented by the treas_int asset chain before its own history)
Kind
Backfill chain
Extended from
1962-01-03
Through
2026-10-09
Sources
VFITX → DGS5.CM
Validation at each junction
| Real series | Stands in before it | Real data from | Overlap (years) | Monthly correlation | Return gap (pp/yr) | Gate |
|---|---|---|---|---|---|---|
| VFITX | DGS5.CM | 1991-10-28 | 34.95 | 0.9711 | 0.663 | 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.