Sector Sentiment · Materials (Discourse)

## What this measures

Mean `sentiment_score` across S&P 500 companies in the GICS Materials sector, trailing 90 days, one document per company per calendar quarter.

## Why it matters

Sector tone diverges long before sector earnings do. Read against the cross-sector mean (`discourse.sentiment`).

## How to read it

A rise means management language across Materials companies has grown more positive over the trailing 90 days; a fall means it has turned more cautious or negative. Compare the series to the cross-sector mean to see whether Materials sentiment is leading or lagging the broader market. Because the window is 90 days and documents arrive quarterly, moves reflect the shifting mix of reports as much as changes in tone within any single company.

## What it does not say

The score does not measure earnings, guidance or analyst expectations. It reflects only the language managers chose in their most recent filings, not the underlying financial performance or forward prospects of the sector.

## Source

Palanor derives this series from sentiment scores of quarterly disclosure documents filed by S&P 500 companies in the GICS Materials sector. One document per company per quarter is included in the trailing 90-day window.

## Revision — 2026-09-26

Universe updated to current S&P 500 constituents (8 out, 3 in). Out: Builders FirstSource, Molson Coors and The Trade Desk, which left the index on 21 September 2026; Electronic Arts, which was taken private and left on 5 August 2026; and MongoDB, Cloudflare, Snowflake and Zoom, which were never members and had been included in error since May 2026. In: Bloom Energy, Everpure and Illumina, which joined on 21 September 2026. Membership now comes from a dated constituent list refreshed monthly. The corrected list applies from 26 September 2026. Readings before that date are unchanged.