# Adjacent News

Adjacent is an indexing and benchmarking company for prediction markets and event contracts.

- Canonical URL: https://adjacent.markets/indices/presd
- Public data API (no auth, CORS-open, 15-min delayed): https://api.adjacent.markets/api/v1/public
- MCP server (Streamable HTTP): https://mcp.adjacent.markets/mcp (docs: https://docs.adjacent.markets/explore/mcp ; skill: /.well-known/agent-skills/use-mcp/SKILL.md)
- API docs (machine-readable, Mintlify): https://docs.adjacent.markets/llms.txt
- Agent skills index: https://adjacent.markets/.well-known/agent-skills/index.json
- API catalog: https://adjacent.markets/.well-known/api-catalog
- Sitemap: https://adjacent.markets/sitemap.xml

## Presidential (D) (presd)

> **Reading the value.** Probability-based Adjacent political indices publish on a **50–150 index scale**, not a 0–100 probability and not a dollar price. **100 is the neutral baseline** (the index party's aggregate win-probability across its tracked races is 50%). Each point above or below 100 is one percentage point of win-probability, so **value − 50 = implied win-probability %** (109 ≈ 59%, 95 ≈ 45%, 130 ≈ 80%). The scale runs 50 (0%) to 150 (100%), so an outcome is only "near-certain" as the value approaches 150 (or 50). **RED** tracks Republican strength and **BLUE** tracks Democratic strength; a value above 100 means that index's party is favored across its races.

- Latest value: **107.50** on the 50–150 scale (as of 2026-09-05)
- Daily history: /api/v1/public/indices/presd_kalshi/prices?interval=1day (90 points)
- Intraday series: /api/v1/public/indices/presd_kalshi/prices?interval={1min|5min|1hour|1day}
- Constituents: /api/v1/public/indices/presd_kalshi/constituents?expand=markets
- Auth: none, a public CORS-open snapshot tier.

### Expanded leaf-market constituents (1)

Constituent "Last price" is each market's Yes probability (0–100%), not the index's 50–150 value.

| Ticker | Weight | Last price |
|---|---:|---:|
| KXPRESPARTY-2028-D | 100.00% | 57.00% |

See skill: /.well-known/agent-skills/read-index/SKILL.md