AINEWS
The new fund bets on light based chip links (photonics) for AI data centers, but its 0.60% fee and zero track record put it head to head with cheaper semiconductor indexes like SMH.
Aura AI Photonics ETF (ticker PHOX) began trading on NYSE Arca on August 6, after NYSE Arca certified the listing the same day. The fund is a new series of Tidal Trust III, advised by Tidal Investments, and it charges a 0.60% annual expense ratio. Its bet is narrow: the optical interconnects that move data between chips, switches, and racks inside AI data centers.
Photonics is the wiring harness of the modern data center. Lasers, transceivers, and silicon photonics chips translate electrical signals on a GPU into pulses of light that travel farther and faster along fiber than copper. As hyperscalers scale toward gigawatt campuses, copper runs hit physical limits, and light becomes the cheaper way to keep GPUs fed. The fund's thesis is that the picks-and-shovels names in this chain deserve a dedicated vehicle, separate from the Magnificent 7 and broad semiconductor funds where their market caps are too small to move the index.
The prospectus describes an actively managed, equity-only strategy that targets optical interconnects, silicon photonics, laser-based transceivers, and laser diodes used in AI data center networking. The fund is growth-oriented, not income-oriented, and the prospectus dated July 29, 2026 carries the standard SEC registration references: 1933 Act File No. 333-221764 and 1940 Act File No. 811-23312.
PHOX charges 0.60%. The named comparison peers in source coverage of the launch are VanEck Semiconductor ETF (SMH) and iShares Semiconductor ETF (SOXX), plain semiconductor indexes that hold much of the same supply chain. PHOX costs more for a narrower slice of that chain, and it does so with no performance record to defend the premium.
"Too new to evaluate" is a constraint, not a hedge, and the prospectus acknowledges it directly. There is no distribution record, no tracking error, and no drawdown data to test against the prior chip cycle. A reader who buys PHOX on day one is taking the sponsor's word that the niche works as advertised, with no fund-level record to measure it. The fund is part of Tidal Trust III, a structure used for multiple niche ETF launches.
The structural bet is whether optical interconnects stay a separate trade, or get absorbed by NVIDIA, Broadcom, and TSMC as those companies extend down the stack. If the big three vertically integrate the photonics layer, the standalone sleeve collapses into the index, and SMH delivers the same exposure for less. If the niche outgrows the index first, the 0.60% fee earns its keep. The reader is paying for the option on the second outcome, without the data to handicap it.
Four questions sharpen the test for any new thematic AI fund. What does it own that the broad indexes do not? Photonics names are largely underweighted in SMH and SOXX, so the niche is real, but the prospectus has to be checked for the actual holdings list before the thesis is accepted. Is the fee justified by the niche? At 0.60% against the lower published fees on the broad semiconductor indexes, the premium is meaningful, and the narrower the strategy the harder the fee has to work. Is the track record long enough to evaluate? For PHOX, the answer today is no, and waiting for at least one full quarter of NAV history and one distribution cycle is the safer move. Is the underlying trade real exposure, or packaging? Optical interconnects are a real trade. Whether the fund is the cheapest or cleanest way to take it is a separate question, and one the broad semiconductor indexes already answer for many readers.
PHOX began trading on August 6 at 0.60% with no track record. The structural question for a reader is the same one every future thematic AI fund will force: whether the niche earns the fee before the index absorbs it.