SPIP: how its history is extended
SPIP returns from its first trading day; earlier history from TIP, then VIPSX. (represented by the tips asset chain before its own history)
Kind
Backfill chain
Extended from
2000-06-30
Through
2026-10-14
Sources
SPIP → TIP → VIPSX
Validation at each junction
| Real series | Stands in before it | Real data from | Overlap (years) | Monthly correlation | Return gap (pp/yr) | Gate |
|---|---|---|---|---|---|---|
| SPIP | TIP | 2007-05-30 | 19.38 | 0.9883 | 0.002 | pass (bars: corr ≥ 0.9, |gap| ≤ 1.0pp) |
| TIP | VIPSX | 2003-12-05 | 22.84 | 0.9921 | 0.202 | 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.