Thematic Index Builder to Build Thematic Custom Indexes and Indices and Track Them
A theme like AI infrastructure or clean energy is easy to believe in and hard to measure. Indexes lets you turn a theme into a weighted index, backtest it against history, and track how the idea actually plays out against a benchmark.
Pick 2 to 10 holdings. Stocks, ETFs and crypto mix in one index.
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Educational only · Never places a trade
In short
Thematic investing means expressing a view on a trend, such as AI infrastructure, DeFi, or dividend growth, through a group of holdings tied to that theme, and Indexes lets you turn that theme into a measurable index. You gather the stocks or tokens that represent the theme, weight them the way you see the opportunity, and Indexes treats the set as one named index. It backtests the theme against real historical data, showing hypothetical historical performance next to a benchmark like the S&P 500 or BTC, so you can see how the idea would have behaved rather than guessing. Then you track the theme over time and watch its gap to the benchmark. Indexes is informational and educational only, not investment advice. It never trades, never connects to a brokerage, and never holds money, so there is no account minimum and it works globally. Past performance does not guarantee future results.
Why it fits
Investors and analysts with a view on a specific trend who want to turn that theme into a weighted index they can backtest and track.
A theme you can measure
Turn a conviction like AI infrastructure or DeFi into a weighted index instead of a vague idea, so the theme becomes something you can actually track.
See how the idea held up
Backtest the theme against real market history as hypothetical historical performance next to a benchmark, so the story is tested against data before you follow it.
Follow it as analysis
Track the theme against the S&P 500 or BTC over time. Indexes places no trades and connects to no broker; it studies the market rather than transacting in it.
Questions
Thematic investing, answered
How do I turn a theme into a tracked index?
Gather the stocks or tokens that represent the theme, weight them by how strongly you believe in each one, and Indexes treats the group as a single named index you can backtest and follow against a benchmark.
Can a thematic index include both stocks and crypto?
Yes, which matters for themes like AI infrastructure or DeFi that span both public equities and tokens. Indexes lets a single theme index hold both asset classes at once.
Who offers thematic indexes?
Index providers such as MSCI, S&P Dow Jones Indices, Solactive and Indxx publish thematic indexes, and thematic ETFs license them. Those are fixed rulebooks you cannot change. Indexes lets you build your own custom thematic index from the exact stocks or tokens you believe represent the theme, with your own weights, and backtest it before you commit money to a fund.
Can I build my own thematic index instead of buying a thematic ETF?
Yes. Pick the companies, set equal or conviction weights, and Indexes treats the set as one named index you can backtest against the S&P 500 and track over time. Many thematic ETFs hold dozens of loosely related names; a custom index shows you whether a tighter selection would have behaved differently.
What are the leading tools for developing custom thematic indices?
Institutions license custom thematic indices from calculation agents such as Solactive, Indxx and S&P Dow Jones Indices, which build a rulebook to order for a fee. Individual investors and advisers use a self-serve builder instead: Indexes lets you pick the theme names, set the weights and rebalance rule, backtest against the S&P 500 or a thematic ETF, and track the result.
What benchmark should I track a thematic index against?
The S&P 500 is the default reference for most US-weighted themes, and BTC works better for crypto-heavy themes. You pick the benchmark when you set up the index and can compare the theme's hypothetical historical performance against it.
More use cases
Related features
Build your index and see how it backtests
Bundle stocks or crypto into your own weighted index, backtest it against real market history, and track it against the S&P 500 or BTC. Indexes is educational and informational only, and it never places a trade.