Bletchley provides a number of indexes which we feel are consistent and well-constructed. We list three Bletchley indexes today: the daily versions of the Bletchley 10, Bletchley 20, and Bletchley 40. These indexes track large-cap, mid-cap, and small-cap cryptoassets, respectively. These indexes together provide easy to understand insight into the day's cryptoasset price movements:
The Bletchley 10 is composed of 10 of the largest cryptoassets, weighted by marketcap. As such, it tends to track the 'large-caps'.
The Bletchley 20 is composed of 20 medium-capitalization cryptoassets.
The Bletchley 40 is composed of 40 small-capitalization cryptoassets.
Together, these indexes give good at-a-glance understanding of how large-caps are performing relative to medium/small-caps over the past 24 hours.
For further detail on Bletchley index construction, asset eligibility, rebalancing, and weightings, see the Bletchley Indexes methodology detail page