LUMAvsCHATETF Comparison
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KraneShares Photonic and Optical ETF (LUMA) and Roundhill Generative AI & Technology ETF (CHAT) belong to the same industry segment: Disruptive Technology. LUMA's top 3 sector exposures are Technology, Consumer Cyclicals and Non-Energy Materials. LUMA is more expensive with a Total Expense Ratio (TER) of 1%, versus 0.75% for CHAT. Run a side-by-side ETF comparison of LUMA and CHAT below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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LUMA vs CHAT performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 08/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | LUMA CHAT | +17.52%+11.93% | n/a-8.65% | n/a+48.26% | n/a+64.85% | n/a+222.85% | n/an/a |
| Flows | LUMA CHAT | +$7M-$32M | -+$39M | -+$351M | -+$805M | -+$1.11B | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | LUMA CHAT | n/a+50.95% | n/a+35.70% | n/a+29.51% | n/an/a |
| Max drawdown | LUMA CHAT | n/a-28.10% | n/a-28.10% | n/a-30.22% | n/an/a |
| Max drawdown duration | LUMA CHAT | n/a67d | n/a67d | n/a133d | n/an/a |
Trading data
LUMA | CHAT | |
Last sale 8/31/2026 at 1:30 PM | $24.16 | $87.41 |
| Previous close 08/28/2026 | $23.80 | $87.04 |
| Consolidated volume 08/28/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 8/31/2026 at 1:30 PM
Live
Closed
LUMA | CHAT | |
|---|---|---|
| Last price | $24.16 | $87.41 |
| 1D performance | +1.49% | +0.43% |
| AuM | $9.58 M | $1.83 B |
| E/R | 1% | 0.75% |
Characteristics
LUMA | CHAT | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | KraneShares | Roundhill Investments |
| Benchmark | - | - |
| N° of holdings | 26 | - |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | July 15, 2026 | May 18, 2023 |
| ESG | No | No |
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Exposure
Countries
LUMA
USA
43.1%
Taiwan
14.22%
China
9.95%
Other
32.73%
CHAT
Data will be available soon
Sectors
LUMA
Technology
90.67%
Other
9.33%
CHAT
Data will be available soon
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Diversification
LUMA
Total weight of top 15 holdings out of 15
72.66%
CHAT
Data will be available soon
Top 15 holdings
Data as of July 31, 2026
LUMA
AXT, Inc.
6.54%
Lumentum Holdings, Inc.
6.38%
Coherent Corp.
5.95%
Soitec SA
5.59%
AIXTRON SE
5.25%
MACOM Technology Solutions Holdings, Inc.
5.24%
LandMark Optoelectronics Corp.
5.17%
Tower Semiconductor Ltd.
5.12%
Marvell Technology, Inc.
4.95%
Zhongji Innolight Co., Ltd.
4.35%
Eoptolink Technology Inc., Ltd.
4.09%
Nokia Oyj
3.91%
FormFactor, Inc.
3.47%
EZconn Corp.
3.33%
Sumitomo Electric Industries Ltd.
3.32%
CHAT
Data will be available soon
Frequently asked questions about LUMA and CHAT
Which ETF is bigger: LUMA or CHAT?
As of August 28, 2026, LUMA holds $9.58 M in assets under management (AUM), while CHAT manages $1.83 B.
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Latest news about LUMA & CHAT
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July 9, 2026
CHAT
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November 12, 2025
CHAT
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