# The largest photonics and optics ETFs

> The largest photonics and optics ETFs, ranked by net assets, as of Oct 20, 2026. 3 funds from ETFIQ’s own published figures.

Data as of Oct 20, 2026. Rebuilt every trading night.

As of Oct 20, 2026 . Rebuilt every trading night.

## The largest photonics and optics ETFs

See 3 funds ranked by net assets. Updated Oct 20, 2026. Every fund here is sold on photonics and optics. What each one holds, and how much of it the S&P 500 already holds for you, is the column beside the size.

| # | Ticker | Fund | Net assets | Weight in S&P 500 companies | Total return, 1Y | Fee | Source |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | LAZR | Tema Photonics & Optical ETF | $187m | 22.5% | too new | 0.75% | Issuer page, Oct 19, 2026 |
| 2 | LYTE | Roundhill Photonics & Optics ETF | $170m | not yet filed | too new | 0.65% | Issuer daily, Oct 20, 2026 |
| 3 | FOTO | Tuttle Capital Pure Play Photonics ETF | $167m | 14.2% | too new | 0.75% | SEC filing, Jun 30, 2026 |

### Method

The 3 ETFs in the photonics and optics theme, of which 3 publish net assets, ranked on the most recent figure for each. Across the funds listed here the weight held in S&P 500 companies runs from 14.2% to 22.5%. Size shows where the money is, not what a fund did. The list sorts one published figure, with no scoring or weighting. Every fund ETFIQ covers in this category is eligible, closed funds included.

### Where to next

### Where these figures came from

ETFIQ links to the documents behind every figure; a link is not an endorsement.

A ranking is not a recommendation or an opinion. ETFIQ is an independent publisher, not an adviser. Standards and sources

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Source: ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.
Cite: ETFIQ, The largest photonics and optics ETFs, ranked by net assets, data as of Oct 20, 2026. https://etfiq.com/rankings/themes-largest-photonics
Licence: https://etfiq.com/license/ Figures ETFIQ computes are free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.
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