# Ornn A100 index

> The Ornn Compute Price Index for the A100 SXM4: a volume-weighted average of the prices A100 rentals actually cleared at, settled daily, shown for the trailing three months with Ornn’s permission.

Updated 2026-09-06. Canonical: https://gpuquant.com/docs/market-data/ornn-a100-index

## What it measures

The Ornn Compute Price Index for the A100 SXM4: a volume-weighted, winsorized average of the prices A100 rentals actually cleared at, normalized across configuration, provider and region, in US dollars per GPU-hour, settled once a day by 20:00 UTC. The A100 is the part furthest into its life on the site, so this is where the transacted price of ageing capacity can be read.

## How it is built

By Ornn, from the prices GPU rentals actually cleared at. In Ornn's own words the index is a volume-weighted, winsorized average of transacted GPU rental prices, normalized across configuration, provider and region, and settled once a day. Winsorizing clips the extreme observations rather than dropping them, so a single outlying deal cannot move the day's figure. Ornn publish the method at [data.ornn.com/methodology](https://data.ornn.com/methodology).

It is the transacted view of the same market that GPUQuant's references describe from the price list and Silicon Data's indices describe from a model; how the three kinds of number differ is on [Price indices, compared](https://gpuquant.com/docs/price-indices).

## Publication

**Source**

Ornn

**Unit**

USD / GPU-hour

**Frequency**

Daily, settled by 20:00 UTC

**Ticker**

OCPI, on the Bloomberg Terminal

## What GPUQuant shows

The trailing **92 days**, which is what Ornn's public endpoint serves without a key, read at each regeneration of the page and never stored, with Ornn's written permission and Ornn named as the source on the chart. Nothing is redistributed and no derived index is built from it.

On [Market Data](https://gpuquant.com/market-data) as Transacted · Ornn under A100.

## Reading it beside the others

-   [A100 reference price](https://gpuquant.com/docs/market-data/a100-reference-price): The hyperscaler list price of one A100-hour, the ceiling of the market.
-   [Silicon Data A100 index](https://gpuquant.com/docs/market-data/silicon-data-a100-index): Silicon Data's modelled figure, which counts negotiated and committed-use deals and sits below any list price.
-   [A100 residual value](https://gpuquant.com/docs/market-data/a100-residual-value): What one A100 is still worth, from that curve.

## Sources

-   [data.ornn.com](https://data.ornn.com), Ornn's site, and [the method](https://data.ornn.com/methodology).
-   [Price indices, compared](https://gpuquant.com/docs/price-indices), the transacted figure beside the list price and the modelled index.