Security Television Network
STN Critical Infra Snapshot 2026-08-19
Immutable 2026-08-19 constituent snapshot for STN Critical Infra.
Record details
- Identifier
- STN-CI
- Record modified
- 2026-08-19T00:00:00-07:00
- Documented membership count
- 4
- Weighting
- Equal weight
- Immutable effective date
- 2026-08-19T00:00:00-07:00
- Methodology version
- equal_weight_chain_linked_close_v1
STN Critical Infra immutable constituent snapshot
This is the fixed 2026-08 membership artifact, effective 2026-08-19T00:00:00-07:00. Its identity and membership remain historical, even when newer market batches are published.
The company registry is the census of recorded identities; the index is a separately governed selection and weighting. End-of-day index levels are not share prices.
Market publication for the immutable effective date
No accepted market level is available for the immutable effective date 2026-08-19; a current or interpolated quote has not been substituted.
STN Critical Infra immutable snapshot
4 constituent identities are documented for STN Critical Infra. Immutable period: 2026-08; effective 2026-08-19T00:00:00-07:00. These historical identities are not replaced with the current list.
Equal weights below describe this dated constituent artifact; no current quote is attached to the snapshot.
- Documented membership count
- 4
- Weighting
- Equal weight
- Immutable effective date
- 2026-08-19T00:00:00-07:00
| Constituent ticker | Equal weight | Register context |
|---|---|---|
| ORCL | 25% | 2026-08-19 |
| IBM | 25% | 2026-08-19 |
| LDOS | 25% | 2026-08-19 |
| LMT | 25% | 2026-08-19 |
Published calculation methodology
equal_weight_chain_linked_close_v1: the documented STN families use equal-weight, chain-linked closing index levels. The first accepted publication starts each family at 1,000 index points.
For each published family, the daily chain factor is the arithmetic mean of constituent current-close / prior accepted close ratios. The new level is the prior published level multiplied by that factor. A baseline observation with no prior accepted closes has a factor of one.
Source validation, dates, attribution and file integrity belong to the publication evidence. A company identity correction, follow, advertisement, affiliate offer or commercial claim does not select a constituent or change its weight. The public projection does not read unpublished rebalance or restricted decision stores.
1 documented family is in this page’s scope. Source-specific missing prices or unavailable history do not establish zero performance.
- Methodology version
- equal_weight_chain_linked_close_v1
Source, scope and publication evidence
Published reference values use IEX Exchange HIST T+1 historical data. They describe IEX Exchange executions only, not consolidated-market prices, real-time trading quotes or investment advice.
A validated, dated market publication is currently unavailable. Missing values remain unavailable; no sample or estimated level is substituted.
Related published record pages
Attribution: Security Television Network
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