Price: mark price · perpetual futures / vs. 24h earlier / / Saved / stale
Price-discovery chart
Solid line = the referenced cash market is in session / dotted line = outside the session (overnight and weekends); both show the same perpetual-futures reference value (line styles are not distinguished at narrow display widths). About the data
Saved open interest, contract count
Saved funding rate, per-hour decimal
An ETF of optics and photonics companies, listed on Cboe BZX.
Source: Hyperliquid · Last updated · Perpetual-futures reference value
Cash New York: 09:30–16:00. When closed: perpetual-futures reference. Hyperliquid xyz perpetual-futures reference.
How to read the chart
Reference chart of Hyperliquid perpetual-futures candles for Roundhill Photonics & Optics ETF, not the official cash-market chart.
Reference value and method
How the numbers and formulas on this page work: Symbol page guide.
Roundhill Photonics & Optics ETF is shown as a Hyperliquid perpetual-futures reference, and 24h compares against the previous-day reference for the same contract, not a cash price, official index, exchange close, or cash previous close.
Observed value at 2026-09-27 22:04 UTC
- Asset class
- U.S.-listed ETF reference
- Source
- Hyperliquid / xyz:LYTE
- Price unit
- USDC reference
- Reference value
- USDC 25.6005
- 24h
- +0.67%
- Method
- Use the mid price; use the mark price only when no mid price can be obtained
- Referenced contracts
- xyz:LYTE
- Observed time
- Saved observation
Ratio = 25.6005 / 25.431 − 1 = +0.67% (shown as a percentage, rounded to two decimal places).
Hyperliquid field names: mid price = midPx; mark price = markPx; previous-day reference = prevDayPx.
This site does not provide investment advice.
About this symbol
An actively managed ETF. It does not track an index; the manager selects the holdings. Its name is the Roundhill Photonics & Optics ETF.
The fund's investment objective is to provide capital appreciation. Sources: Roundhill, trade[XYZ] (contract issuer), Roundhill (filing on SEC EDGAR).
Covered activities include optical transceivers, laser light sources, silicon photonics, optical interconnects, and fibre-optic cabling. It also states that constituents may be small-, mid-, or large-cap companies. Distributions from net investment income are made at least annually, and realized net capital gains are distributed annually. All of the above is from Roundhill ETF Trust and Roundhill Financial Inc.
Sourced explanations (18)
Explanations may include summaries and translations. Follow the source links for the original text.
Composition and methodology
-
An actively managed ETF. It does not track an index; the manager selects the holdings. From the fund manager's page, retrieved 23 August 2026.
Source: Roundhill
-
Its name is the Roundhill Photonics & Optics ETF. Roundhill Financial Inc. serves as the investment adviser. From the fund manager's page, retrieved 23 August 2026.
Source: Roundhill
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It is listed on Cboe BZX under the ticker LYTE. From the fund manager's page, retrieved 23 August 2026.
Source: Roundhill
-
The fund launch date is 6 August 2026. From the fund manager's page, retrieved 23 August 2026.
Source: Roundhill
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This contract references the USD price of one share of the ETF, not the index itself. From the contract specification, retrieved 23 August 2026.
Source: trade[XYZ] (contract issuer)
-
The CUSIP is 77926X296 and the ISIN is US77926X2962. From the fund manager's page, retrieved 24 August 2026.
Source: Roundhill
Contract and trading hours
-
External pricing runs from Sunday 20:00 ET to Friday 20:00 ET. Internal pricing applies from Friday 20:00 ET to Sunday 20:00 ET. From the contract specification, retrieved 23 August 2026.
Source: trade[XYZ] (contract issuer)
Basic information
-
The fund is a series of the Roundhill ETF Trust, which was organized as a Delaware statutory trust on 2 May 2023 and is registered as an open-end management investment company under the Investment Company Act of 1940. From the prospectus, retrieved 24 August 2026.
Source: Roundhill (filing on SEC EDGAR)
-
Under normal circumstances the fund invests at least 80% of its net assets, plus borrowings for investment purposes, in equity securities or instruments that provide exposure to photonic and optical companies. Derivative contracts are valued at notional value for this test. From the summary prospectus, retrieved 24 August 2026.
Source: Roundhill (filing on SEC EDGAR)
-
The prospectus distinguishes photonics as the active side that creates light and optics as the passive side that guides it. From the summary prospectus filed 3 August 2026.
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Covered activities include optical transceivers, laser light sources, silicon photonics, and optical interconnects. Fibre-optic cabling is included as well. From the summary prospectus filed 3 August 2026.
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Reference thresholds for constituents are market capitalization of at least $1 billion and average daily trading value of at least $10 million. From the summary prospectus filed 3 August 2026.
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The prospectus states that, as of its date, the fund intends to invest a substantial portion in Asian issuers. From the summary prospectus filed 3 August 2026.
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The prospectus states that constituents may be small-, mid-, or large-cap companies. From the summary prospectus filed 3 August 2026.
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U.S. Bank is the custodian, Cohen & Company is the auditor, and Foreside Fund Services is the distributor. From the registration statement filed 3 August 2026.
Business and products
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Photonic and optical companies are defined as companies with at least 50% of revenues attributable to optical and photonic technologies, including optical transceivers, silicon photonics integrated circuits, optical interconnect systems, lasers and fiber optic connectivity. From the fund manager's page, retrieved 24 August 2026.
Source: Roundhill
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Eligible companies derive at least 50% of revenue from optical or optoelectronic technologies. From the summary prospectus filed 3 August 2026.
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Distributions from net investment income are made at least annually. Realized net capital gains are distributed annually. From the registration statement filed 3 August 2026.
Market observations Retrieved: 2026-09-27 22:04 UTC
24h volume Retrieved: 2026-09-27 22:04 UTC
- Notional (USDC)
- 7,318.05
- Contracts
- 286.340
- Nominal / quantity
- 25.557211Notional ÷ contracts, using the values before rounding; rounded to six decimal places
Open interest (OI) Retrieved: 2026-09-27 22:04 UTC
- Open interest (contracts)
- 17,226.840
- Mark price
- 25.597
- Notional (contracts × mark price)
- 440,955.42Contracts × mark price, using the values before rounding; USDC, rounded to two decimal places
Funding rate Retrieved: 2026-09-27 22:04 UTC
Funding: Hourly 0.00000625 = 0.000625% (shown as a percentage); ×24 (daily conversion) = 0.015%; ×24×365 (365-day conversion) = 5.475% (simple multiplications, not accrued amounts). The marker in the diagram shows the sign only (this value is positive).
- Hourly
- 0.00000625As a percentage: 0.000625%
- ×24 (daily conversion)
- 0.015%
- ×24×365 (365-day conversion)
- 5.475%
Hyperliquid field names and values before rounding: notional = dayNtlVlm 7318.05191 USDC; contracts = dayBaseVlm 286.34; open interest = openInterest 17226.84 contracts; mark price = 25.597; hourly funding rate = funding 0.00000625.
Daily observation log (67 saved daily records) Latest: 2026-10-17 22:04:59.595 UTC
Latest: 2026-10-17 22:04:59.595 UTC · Records with missing fields: 0/67 · Missing dates: 4
Show 67 saved daily records
Hyperliquid field names: Mid price = midPx; Previous-day reference = prevDayPx; Open interest = openInterest; 24h notional volume (USDC) = dayNtlVlm. vs previous-day reference = midPx / prevDayPx - 1.
Scroll horizontally to see all columns.
| Observed at (UTC) | Mid price | Previous-day reference | vs previous-day reference | Open interest | 24h notional volume (USDC) |
|---|---|---|---|---|---|
| 27.357 | 26.713 | +2.41% | 52365.76 | 304014.9356499999 | |
| 27.633 | 27.42 | +0.78% | 78498.8 | 627942.9096700002 | |
| 24.4525 | 27.655 | -11.58% | 121791.4 | 3920139.5497899996 | |
| 24.8905 | 24.526 | +1.49% | 114991.44 | 528751.5662099996 | |
| 26.7255 | 24.892 | +7.37% | 64814.58 | 2136785.7855100012 | |
| 26.2815 | 26.721 | -1.64% | 50298.12 | 1146660.93144 | |
| 26.887 | 26.369 | +1.96% | 42761.98 | 602550.7589099997 | |
| 26.9165 | 26.92 | -0.01% | 41967.9 | 138673.2819 | |
| 28.5555 | 26.929 | +6.04% | 40681.36 | 965865.4864199996 | |
| 26.0935 | 28.546 | -8.59% | 41339.82 | 886450.2839499998 | |
| 25.3085 | 26.102 | -3.04% | 41126.2 | 872585.6045900002 | |
| 25.32 | 25.03 | +1.16% | 41816.16 | 516755.4441900001 | |
| 25.608 | 25.306 | +1.19% | 39543.18 | 489011.0103800002 | |
| 24.5085 | 25.587 | -4.22% | 39644.28 | 144944.69555 | |
| 24.7405 | 24.516 | +0.92% | 41442.36 | 264610.8526400001 | |
| 23.94 | 24.729 | -3.19% | 38616.0 | 481783.0863999999 | |
| 24.8125 | 23.934 | +3.67% | 53126.18 | 377513.1493 | |
| 25.5335 | 24.696 | +3.39% | 51883.22 | 144651.09827 | |
| 25.137 | 25.528 | -1.53% | 55022.16 | 462497.66176 | |
| 24.5275 | 25.13 | -2.40% | 42122.28 | 683900.2044300002 | |
| 24.028 | 24.644 | -2.50% | 45572.9 | 152347.37111 | |
| 24.204 | 24.007 | +0.82% | 45147.52 | 17225.82564 | |
| 24.616 | 24.162 | +1.88% | 40471.9 | 395684.0528699998 | |
| 23.821 | 24.656 | -3.39% | 40456.64 | 104919.94798 | |
| 23.631 | 23.807 | -0.74% | 42764.8 | 133522.58276 | |
| 23.2025 | 23.638 | -1.84% | 29569.28 | 490405.1501000001 | |
| 23.631 | 23.174 | +1.97% | 29742.48 | 246276.28872 | |
| 23.6675 | 23.63 | +0.16% | 29576.02 | 12651.2864 | |
| 23.7085 | 23.663 | +0.19% | 29251.18 | 20469.74803 | |
| 25.367 | 25.448 | -0.32% | 26500.92 | 85668.36076 | |
| 24.6155 | 25.296 | -2.69% | 25336.16 | 93852.65777 | |
| 25.2195 | 24.587 | +2.57% | 24783.78 | 35939.64392 | |
| 24.942 | 25.224 | -1.12% | 24717.58 | 6572.68704 | |
| 23.5145 | 24.62 | -4.49% | 20469.94 | 204287.1864899998 | |
| 23.691 | 23.495 | +0.83% | 19897.24 | 29271.03836 | |
| 24.957 | 23.68 | +5.39% | 19625.14 | 172847.65425 | |
| 25.299 | 25.02 | +1.12% | 18892.64 | 54857.78521 | |
| 26.0215 | 25.277 | +2.95% | 20122.74 | 64206.47599 | |
| 26.374 | 26.202 | +0.66% | 20084.56 | 8315.06308 | |
| 26.112 | 26.341 | -0.87% | 20260.98 | 91090.08201 | |
| 26.7935 | 26.189 | +2.31% | 19716.7 | 75467.0899 | |
| 26.4445 | 26.848 | -1.50% | 19671.32 | 23070.58745 | |
| 25.6755 | 26.423 | -2.83% | 17868.78 | 48199.34373 | |
| 25.367 | 25.712 | -1.34% | 17252.54 | 25414.59145 | |
| 25.614 | 25.343 | +1.07% | 17300.86 | 19235.20566 | |
| 25.444 | 25.59 | -0.57% | 17177.52 | 8541.73293 | |
| 25.6005 | 25.431 | +0.67% | 17226.84 | 7318.05191 | |
| 23.913 | 25.574 | -6.49% | 18418.92 | 104167.34476 | |
| 24.701 | 23.932 | +3.21% | 17266.24 | 53233.66403 | |
| 24.247 | 24.681 | -1.76% | 17552.8 | 66598.64733 | |
| 25.1075 | 24.226 | +3.64% | 17774.06 | 43254.27234 | |
| 26.005 | 25.141 | +3.44% | 17530.66 | 51652.62241 | |
| 25.9595 | 25.976 | -0.06% | 17314.58 | 16247.11569 | |
| 26.0475 | 25.938 | +0.42% | 17235.36 | 6677.05656 | |
| 25.881 | 25.977 | -0.37% | 17086.68 | 18751.17612 | |
| 26.7475 | 25.894 | +3.30% | 17016.8 | 24969.79018 | |
| 26.4235 | 26.716 | -1.09% | 16444.46 | 43228.29179 | |
| 24.626 | 26.444 | -6.87% | 21539.1 | 246949.17443 | |
| 24.952 | 24.598 | +1.44% | 20921.16 | 97225.56776 | |
| 24.9545 | 24.994 | -0.16% | 20862.9 | 1489.85706 | |
| 24.898 | 24.932 | -0.14% | 20571.64 | 16626.07996 | |
| 23.1435 | 24.913 | -7.10% | 18107.94 | 158361.15577 | |
| 23.4475 | 23.162 | +1.23% | 21088.36 | 261611.9719099999 | |
| 21.4015 | 23.464 | -8.79% | 24664.36 | 164397.93143 | |
| 20.9565 | 21.388 | -2.02% | 24916.38 | 182139.28323 | |
| 19.8095 | 20.981 | -5.58% | 25420.92 | 63885.50559 | |
| 19.832 | 19.79 | +0.21% | 25087.2 | 29420.42311 |
Dates without a saved record in the displayed period: 2026-08-16, 2026-09-07, 2026-09-08, 2026-09-13.
Period range (67 records with a mid price)
Period range over 67 daily log rows: first mid price 27.357; last mid price 19.832; highest mid price in the period 28.5555; lowest mid price in the period 19.8095.
- First mid price2026-08-08 22:05:00.098 UTC
- 27.357
- Last mid price2026-10-17 22:04:59.595 UTC
- 19.832
- Highest mid price in the period2026-08-17 22:05:03.010 UTC
- 28.5555
- Lowest mid price in the period2026-10-16 22:04:53.055 UTC
- 19.8095
Market hours
| Trading hours | New York time 09:30-16:00 |
|---|---|
| Days | Weekdays. Check the related venue calendar for holidays. |
Other symbols in this group
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Frequently asked questions
Is this net asset value (NAV)?
No. It references the USD price of one ETF share. It is neither net asset value nor net assets.
Which index does it track?
For an index-tracking fund, “About this symbol” gives the tracking-index name confirmed in the fund manager’s materials. An actively managed fund has no tracking index, and the section states that instead.
Why are the expense ratio and holdings not shown?
The page does not show figures without a way to keep them updated. It includes only information confirmed in the fund manager’s materials that does not change frequently.
What is the price when the U.S. market is closed?
The external price is available from Sunday at 20:00 ET through Friday at 20:00 ET. Outside that period, and outside cash-market trading hours, an internal price is used.