> For the complete documentation index, see [llms.txt](https://mentat-minds-doc.gitbook.io/mentat/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mentat-minds-doc.gitbook.io/mentat/invest/core.md).

# Core

#### **Mentat Sum of Mining Subnets**&#x20;

The Mentat Sum of Mining Subnets index allocates 100% of capital only into Bittensor subnets that are truly active on the network, based on on-chain burn efficiency metrics. This is the sum of subnets, excluding subnets that do not produce value: it represents the market of active subnets.&#x20;

* **Allocation:** 100% of capital is invested across the selected mining subnets.&#x20;
* **Selection:**&#x41; new “incentive burn rate” metric is calculated using different on-chain data. For each subnet, the median of this burn rate is computed. Only subnets with a sufficiently low burn rate are selected.&#x20;
* **Rebalancing:** When a new subnet meets the selection criteria, it is added to the index. Mentat is also responsible for selecting the best validators on each subnet to optimize APY.
* **Distribution:** Within the selected subnets, allocation is weighted using alphaPrice. Higher-priced subnets receive a larger share of the portfolio. The allocation share in each subnet is automatically adjusted according to changes in subnet prices.

#### Mentat SoS

**Mentat SoS** index allocates your capital in 100% of the allocated capital is invested in the Sum of Subnets.

* **Allocation**: 100% of of the allocated capital is invested in the Sum of Subnets (all active Bittensor subnets, except those in deregistration zone).
* **Rebalancing**: Subnets entering the deregistration zone are automatically removed from the index and added back once they exit this zone. Mentat is also responsible for selecting the best validators on each subnet to optimize APY.
* **Distribution:** The weight of each subnet in the index is proportional to its price.

#### Mentat 5

The **Mentat 5** index allocates your capital into the top 5 Bittensor subnets, selected and weighted based on trend-confirmation metrics.

* **Allocation**: 100% of of the allocated capital is invested across the top 5 subnets.
* **Selection**: The ranking of subnets is determined using an Exponential Moving Average on the marketcap. This ensures that only subnets with confirmed performance trends enter the index, avoiding short-term noise.
* **Rebalancing**: When a new subnet enters the EMA-based top 5, it is automatically added to the index, and the portfolio is reallocated. Mentat is also responsible for selecting the best validators on each subnet to optimize APY.
* **Distribution:** Within the top 5, allocation is weighted using an EMA applied to subnet prices. Higher-priced subnets receive a larger share of the portfolio. The allocation share in each subnet is automatically adjusted according to changes in their market cap.

#### **Mentat 15**&#x20;

The **Mentat 15** index allocates 100% of capital into the top 15 Bittensor subnets, selected and weighted based on trend-confirmation metrics.

* **Allocation**: 100% of capital is invested across the top 15 subnets.
* **Selection**: The ranking of subnets is determined using an Exponential Moving Average on the marketcap. This ensures that only subnets with confirmed performance trends enter the index, avoiding short-term noise.
* **Rebalancing**: When a new subnet enters the EMA-based top 15, it is automatically added to the index, and the portfolio is reallocated. Mentat is also responsible for selecting the best validators on each subnet to optimize APY.
* **Distribution:** Within the top 15, allocation is weighted using an EMA applied to subnet prices. Higher-priced subnets receive a larger share of the portfolio. The allocation share in each subnet is automatically adjusted according to changes in their market cap.&#x20;