SWPI
Power
Nationwide LMP · Queue depth · Backlog growth · Lead-time · BLS PPI
Diffusion index — 5/5 components active
Index level
107.58
+2.0% MoM
as of 2026-09-04 · data thru 2026-09-04
12-point sparkline
oldest latest →
Component breakdown
What's inside the index.
| Component | Value | Comps | Weight | Source tier |
|---|---|---|---|---|
| lmp iso settlement price multi-source survey | 101.75 | n=1 | 10% | Tier 5 — Public infrastructure |
| queue depth infrastructure dataset multi-source survey | 98.86 | n=2630 | 30% | Tier 5 — Public infrastructure |
| backlog growth edgar filing signal multi-source survey | 153.66 | n=5 | 25% | Tier 3 — EDGAR filings |
| lead time edgar filing signal multi-source survey | 66.67 | n=14 | 20% | Tier 3 — EDGAR filings |
| ppi gov price index single authoritative feed | 106.69 | n=4 | 15% | Tier 1 — BLS PPI |
Total comps used: 2,654 · rebase window: 730 days
Source mix
How we source it.
Tier 1: 15.0%
Tier 3: 45.0%
Tier 5: 40.0%
Diagnostics
- Methodology
- diffusion
- Reading
- Value > 100 = grid more stressed than trailing 24-month baseline.
ISO LMP breakdown
ERCOT
$25.98/MWh
PJM
—
SPP
—
MISO
—
CAISO
—
NYISO
—
ISO_NE
—
Cite this index
SWPI = 107.58 (SpotWire, Vol I Issue 14, 2026-09-04). https://spotwire.ai/indices/swpi
All citation formats: /cite · Machine-readable: /data/indices.json (CC-BY-4.0)