In actively managed thematic funds, the largest holdings are not necessarily the purest plays on the theme. Portfolio managers combine thematic fit with momentum, meaning a company with a moderate thematic link but strong price momentum will be weighted more heavily than a pure-play stock with weak momentum.

Thematic investing is maturing beyond identifying big ideas and creating products. The new phase uses data and AI to systematically measure and track individual companies' exposure to themes in real-time, enabling a more dynamic, data-driven investment strategy.

To manage deal flow and build expertise, SV Angel maintains a highly focused, thematic investment strategy. They identify about six major themes (e.g., search, AI) and primarily evaluate companies that fit within them. This allows them to quickly pass on out-of-scope deals and go deeper on opportunities in their chosen sectors.

A true investment thesis isn't just a popular idea. It must be a specific, actionable, and testable hypothesis that outlines growth drivers, expected performance, and the conditions for holding or selling the asset.

Investors naturally focus on a theme's beneficiaries, but structural change also creates losers. A robust thematic framework is equally valuable for identifying companies facing disruption, margin pressure, or pricing challenges. This provides a critical tool for risk management and understanding a theme's full market impact.

To avoid getting swept up in hype, analyze investments through three distinct lenses. First, is the technology truly transformative? Second, does the specific company have a durable competitive advantage? Third, is the valuation disconnected from fundamental value?

To identify companies benefiting from a theme like deregulation, modern ETFs employ AI to screen earnings call transcripts. This data-driven approach quantifies how often company executives mention the theme, providing a more objective filter for stock selection than relying on sector analysis alone.

A portfolio can appear diversified across sectors and geographies but still hold a concentrated bet on a single underlying trend. Thematic mapping cuts horizontally across traditional verticals to expose these unintended concentrations, allowing investors to manage risk and build truly diversified portfolios.

An effective investment process, particularly with senior analysts, prioritizes depth over breadth. Instead of creating encyclopedic memos to be 'as complete as possible,' the focus should be on identifying and debating the five or six critical variables that will truly drive the investment's success or failure.