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WEEK

Roundhill Weekly T-Bill ETF
WEEK

5 hedge funds and large institutions have $84.5M invested in Roundhill Weekly T-Bill ETF in 2026 Q2 according to their latest regulatory filings, with 3 funds opening new positions, 0 increasing their positions, 2 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more first-time investments, than exits

New positions opened: 3 | Existing positions closed: 1

67% more funds holding

Funds holding: 3 → 5 (+2)

4% less capital invested

Capital invested by funds: $87.7M → $84.5M (-$3.19M)

8.18% less ownership

Funds ownership: 57.31% → 49.14% (-8.2%)

100% less repeat investments, than reductions

Existing positions increased: 0 | Existing positions reduced: 2

Holders
5
Holders Change
+2
Holders Change %
+66.67%
% of All Funds
0.06%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
–
Reduced
2
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$1.17M
2
TRCT
Tower Research Capital (TRC)
New York
+$343K
3
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$1K

Top Sellers

Rank Fund Capital Flow
1
ETC
Exchange Traded Concepts
Oklahoma
-$3.6M
2
Jane Street
Jane Street
New York
-$567K
3
Citadel Advisors
Citadel Advisors
Florida
-$525K

WEEK Hedge Fund Activity: Q2 2026 in Review

5 of the 8,282 institutional investors tracked by Wall St. Rank reported a position in Roundhill Weekly T-Bill ETF (WEEK) for Q2 2026, worth a combined $84.5M — down 3.6% from $87.7M a quarter earlier.

Buyers outnumbered sellers: 3 funds opened new WEEK positions and 1 closed out — a net gain of 2 holders — while 0 added to existing stakes and 2 trimmed.

The largest buyer was Susquehanna International Group, opening a new position worth an estimated $1.17M. The largest seller was Exchange Traded Concepts, cutting an estimated $3.6M.

  • 5 institutional investors held Roundhill Weekly T-Bill ETF (WEEK) as of Q2 2026, up from 3 in Q1 2026.
  • Funds reported $84.5M of Roundhill Weekly T-Bill ETF stock for Q2 2026, down 3.6% quarter-over-quarter.
  • 3 funds opened new Roundhill Weekly T-Bill ETF positions in Q2 2026 and 1 closed out, a net change of +2 holders.
  • The largest Roundhill Weekly T-Bill ETF buyer in Q2 2026 was Susquehanna International Group, an estimated $1.17M added.
  • The largest Roundhill Weekly T-Bill ETF seller in Q2 2026 was Exchange Traded Concepts, an estimated $3.6M sold.

Based on aggregated 13F filings for Q2 2026.