> For the complete documentation index, see [llms.txt](https://docs.blockhorizon.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blockhorizon.io/chart-tutorials/spend-outputs/sts-sopr.md).

# STS SOPR

STS SOPR (Short-Term Supply Spent Output Profit Ratio) tracks whether STS coins are being spent at a profit or loss by comparing their spent value to their realized acquisition value.

$$
\text{SOPR}*{\text{STS}} = \frac{\text{Spent Value}*{\text{STS}}}{\text{Realized Value}\_{\text{STS}}}
$$


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