# TICCS Contributions

**TICCS contributions to QoQ total return**

For a given TICCS pillar (e.g. business model) the contribution of a TICCS category within it (e.g. contracted), at time t is computed as:

where:

is the weight of asset i at time t,

is the QoQ total returns of asset i at time t,

n is the number of constituents in that TICCS category

**TICCS contributions to YoY total return**

Just like the QoQ index total returns are compounded over 4 quarters to get to the YoY index total returns, the QoQ contribution for a given TICCS category are compounded using the index QoQ index total returns to get to the YoY contributions.

where:

is the QoQ total returns of the index at time t

**Contributions expressed as percentages**

The analytics described above are in absolute terms. Adding all the contributions across the categories of a TICCS pillar results in the index total returns. However, they can also be expressed in percentage terms like so:

The same can be done with YoY contribution.