# THEMES ETF TR (ONDG)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/ONDG/

- Reporting holders: 10
- Reported value: $1.8M
- Held through calls: 13.0%
- Held through puts: 41.2%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [CITADEL ADVISORS LLC](https://holderbook.com/funds/1423053-citadel-advisors-llc/) | $779.2K | 0 | 0.0% | 1 |
| [StoneX Group Inc.](https://holderbook.com/funds/913760-stonex-group-inc/) | $426.1K | 66,783 | 0.0% | 2 |
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $319.5K | 52,450 | 0.0% | 2 |
| [IMC-Chicago, LLC](https://holderbook.com/funds/1452861-imc-chicago-llc/) | $150.2K | 45,115 | 0.0% | 2 |
| [Belvedere Trading LLC](https://holderbook.com/funds/1632341-belvedere-trading-llc/) | $49.8K | 3,260 | 0.0% | 1 |
| [GTS SECURITIES LLC](https://holderbook.com/funds/1452765-gts-securities-llc/) | $33.3K | 10,008 | 0.0% | 1 |
| [SBI Securities Co., Ltd.](https://holderbook.com/funds/1851815-sbi-securities-co-ltd/) | $10.5K | 3,149 | 0.0% | 1 |
| [SIMPLEX TRADING, LLC](https://holderbook.com/funds/1488542-simplex-trading-llc/) | $4.3K | 1,286 | 0.0% | 1 |
| [Optiver Holding B.V.](https://holderbook.com/funds/1859606-optiver-holding-b-v/) | $3.7K | 1,107 | 0.0% | 2 |
| [GROUP ONE TRADING LLC](https://holderbook.com/funds/932540-group-one-trading-llc/) | $666 | 200 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 10 | $1.8M |
| Q1 2026 | 5 | $978.5K |