HolderBook

THEMES ETF TR (NBIG)

Institutional ownership reported to the SEC as of Q2 2026, across 4 quarters.

14
Reporting holders
$79.1M
Reported value
44.4%
Calls
50.1%
Puts
+1
Holder change

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
CITADEL ADVISORS LLC$52.0M63,4600.00%3q+84.0%+$23.7M
JANE STREET GROUP, LLC$9.7Moptions only0.00%2qOPTIONS
SUSQUEHANNA INTERNATIONAL GROUP, LLP$7.0Moptions only0.00%newOPTIONS
SIMPLEX TRADING, LLC$5.4Moptions only0.00%4qOPTIONS
Belvedere Trading LLC$1.5Moptions only0.00%2qOPTIONS
GWN SECURITIES INC.$1.3M31,5400.21%2q-19.6%-$306.5K
GROUP ONE TRADING LLC$1.1Moptions only0.00%3qOPTIONS
IMC-Chicago, LLC$484.8Koptions only0.00%newOPTIONS
GTS SECURITIES LLC$269.2K6,7750.01%2q-60.9%-$418.7K
Strategic Investment Solutions, Inc. /IL$159.0K4,0000.04%2qHELD
Optiver Holding B.V.$89.5K2,2520.00%3q-91.5%-$959.2K
SBI Securities Co., Ltd.$82.9K2,0870.00%2q+595.7%+$71.0K
OSAIC HOLDINGS, INC.$4.4K1100.00%2qHELD
HOLLENCREST CAPITAL MANAGEMENT$31880.00%newNEW

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202614$79.1M110,23262394.5%
Q1 202613$7.2M131,083141185.2%
Q4 20256$1.5M159,347100029.5%
Q3 20252$525.2K0600100.0%