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Quantitative Finance · Glosario

¿Qué es Uptime requirement?

Definition 25.4 Markets III: Commodities, Energy and Crypto · Capítulo 25 — Getting Access: Crypto Venues

An uptime requirement is the minimum share of sampled moments, over a measurement period, at which a market maker’s quotes in an instrument must meet the programme’s conditions on both sides: a maximum spread and a minimum size within a band around the mid price.

Uptime of a quoting strategy against a programme requiring USD 50 000 a side, as a function of the maximum spread allowed. The strategy quotes 8 basis points in normal conditions, widening with volatility, halves its size in volatile moments and pulls its quotes above three times normal volatility. Keeping full size up to 2.25 times normal volatility instead of 2.0 lifts uptime from 87% to 91%, past a 90% requirement (dotted). Simulated minutes. Data: the chapter’s tutorial.
Figure 25.3. Uptime of a quoting strategy against a programme requiring USD 50 000 a side, as a function of the maximum spread allowed. The strategy quotes 8 basis points in normal conditions, widening with volatility, halves its size in volatile moments and pulls its quotes above three times normal volatility. Keeping full size up to 2.25 times normal volatility instead of 2.0 lifts uptime from 87% to 91%, past a 90% requirement (dotted). Simulated minutes. Data: the chapter’s tutorial.
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