At BlackSpark Finance, we want to empower TSP investors with data-driven insights to make informed decisions about their portfolios.
First a Few Disclaimers
- We are not financial advisors.
We strongly recommend consulting a financial advisor before making any investment decisions.
- Disclaimer: By viewing our products, you implicitly agree that we cannot be held liable for any use of them.

We are not a certified financial institution yet.
- We are not affiliated with the Thrift Savings Plan (TSP).
BlackSpark Finance operates as an independent entity.
What We Offer
We aim to specialize in providing monthly visualizations of TSP fund performance. Our insights focus on:
- Comparing expected performance for each pair of TSP funds.
- Evaluating data covariance, a measure of variability or risk, to highlight potential trade-offs.
- Looking back a historical window of approximately three years, ensuring depth and reliability in our analyses.
Our goal is to provide a clear picture of how TSP funds interact, helping you find the balance between risk and return.
How It Works
Our visualizations are built on a robust and transparent methodology:
- Data Collection:
We gather historical data for all major TSP funds, including G, F, C, S, and I funds. - Statistical Analysis:
Each month, we calculate the expected performance (average return) and covariance (variability) for fund pairs to help you understand the risk versus reward. - Visualization Creation:
We produce intuitive, easy-to-read charts that compare fund pairs, delivering actionable insights at a glance. - Monthly Updates:
The charts are refreshed monthly to reflect the latest data, ensuring you have access to the most relevant information.
By focusing on fund pairs, we aim to highlight complementary investment strategies within TSP to help you optimize your portfolio.