# MarketSignalIndex

> B2B market intelligence for enterprise hardware. Observed market signals — OEM premium, compatible discount, spread, liquidity — for server memory, CPUs, and storage. Used by hardware resellers, secondary market brokers, and IT procurement teams to benchmark quotes before transacting.

MarketSignalIndex is not a marketplace or price comparison site. It publishes market signals derived from observed seller listings. Exact prices require a Pro subscription. All public signals are observations from available data — not procurement advice.

## What this site covers

- **Server memory** — DDR4/DDR5 RDIMM and LRDIMM market classes, enterprise and data center grade
- **Server CPUs** — Intel Xeon (Platinum, Gold) and AMD EPYC (Milan, Genoa) market classes
- **Enterprise HDDs** — Seagate Exos and WD Ultrastar series
- Individual SKU pages for 78+ part numbers with seller availability and market context

## Market signal pages (canonical pages)

Each canonical page covers one market class and shows:
- OEM premium % vs original
- Compatible discount % vs original
- Market spread % (volatility indicator)
- Liquidity score (high / medium / low)
- Risk and compatibility indicators
- Which sellers are active in that market
- Data freshness date

Public signals are free. Exact observed prices, historical trends, and clearing ranges require Pro access.

## Key entry points

- /memory — Server memory market signals (DDR4/DDR5)
- /cpu — Server CPU market signals (Intel Xeon, AMD EPYC)
- /hdd — Enterprise HDD market signals (Seagate, WD)
- /memory/[slug] — Individual memory market class (e.g. /memory/ddr4-rdimm-32gb)
- /cpu/[slug] — Individual CPU market class (e.g. /cpu/intel-xeon-gold-6444y)
- /hdd/[slug] — Individual HDD market class (e.g. /hdd/seagate-exos-x18-18tb-sata)
- /sku/[slug] — Individual part number page with seller availability

## Seller information

Verified contributors have a formal data relationship with MarketSignalIndex and appear with a Verified badge on market pages. Other sellers are observed from public listings and have no affiliation with MarketSignalIndex.

## Data notes

Prices observed from public seller listings (ask prices). All signals are indicative — see /disclaimer for full terms. Data as-of dates shown on each page.

## Contact

sales@marketsignalindex.com — Pro access, contributor inquiries, data corrections.