GraniteShares has filed paperwork with regulators for a new exchange-traded fund that would invest in companies building the physical backbone of next-generation computing — photonics and AI infrastructure. The Speed of Light AI ETF, as it's called, targets a corner of the tech world that aims to make data centers faster and more energy-efficient.
Why photonics matters now
The filing comes as the computing industry confronts a pair of problems. AI models are growing hungrier for processing power, but traditional electronics — chips that shuttle data using electrons — generate enormous heat and guzzle electricity. Photonics, which uses light instead of electricity to move information, can potentially move data at higher speeds while using less energy. GraniteShares is betting that companies developing photonic components and systems will see rising demand as AI workloads expand.
What the ETF will hold
The fund is designed to track companies involved in photonics — the science of generating, controlling and detecting light — as well as firms that build the infrastructure needed to support large-scale AI computing. That includes makers of optical interconnects, silicon photonics chips, lasers, modulators, and fiber-optic networking gear, along with companies that supply cooling systems, specialized power equipment, and data-center construction services. GraniteShares hasn't yet released a full list of holdings or the precise index the ETF will follow; those details typically come closer to the fund's launch date.
The push for sustainable computing
The filing explicitly ties the ETF's strategy to the need for more sustainable computing. Data centers already account for a significant slice of global electricity use, and the rapid rollout of generative AI is pushing that share higher. Photonics-based interconnects can reduce the power needed to move data between chips and across servers, a bottleneck that grows worse as AI models get larger. GraniteShares says the fund is meant to give investors a way to bet on the companies solving that efficiency problem.
Regulatory path ahead
The filing is an initial step. The SEC will review the prospectus, and the ETF can't begin trading until regulators give the green light. GraniteShares has not announced a target launch date. If approved, the Speed of Light AI ETF would join a growing roster of thematic tech ETFs, but it's one of the first to single out photonics as a standalone investment theme.
