We are live on ! Find out more
WEEK

Roundhill Weekly T-Bill ETF
WEEK

6 hedge funds and large institutions have $89.3M invested in Roundhill Weekly T-Bill ETF in 2025 Q4 according to their latest regulatory filings, with 0 funds opening new positions, 3 increasing their positions, 2 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

50% more repeat investments, than reductions

Existing positions increased: 3 | Existing positions reduced: 2

2% less capital invested

Capital invested by funds: $91.5M → $89.3M (-$2.18M)

4.36% less ownership

Funds ownership: 66.75% → 62.39% (-4.4%)

14% less funds holding

Funds holding: 7 → 6 (-1)

100% less first-time investments, than exits

New positions opened: 0 | Existing positions closed: 1

Holders
6
Holders Change
-1
Holders Change %
-14.29%
% of All Funds
0.07%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
–
Increased
3
Reduced
2
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
GS
GTS Securities
Florida
+$390K
2
OCM
One Capital Management
California
+$132K
3
Citadel Advisors
Citadel Advisors
Florida
+$41.5K

Top Sellers

Rank Fund Capital Flow
1
Jane Street
Jane Street
New York
-$2.56M
2
PWM
Prosperity Wealth Management
California
-$216K
3
OMC
Old Mission Capital
Illinois
-$15.8K

WEEK Hedge Fund Activity: Q4 2025 in Review

6 of the 8,270 institutional investors tracked by Wall St. Rank reported a position in Roundhill Weekly T-Bill ETF (WEEK) for Q4 2025, worth a combined $89.3M — down 2.4% from $91.5M a quarter earlier.

Sellers outnumbered buyers: 1 fund closed out of WEEK and 0 opened new positions — a net loss of 1 holder — while 2 trimmed existing stakes and 3 added.

The largest buyer was GTS Securities, adding an estimated $390K. The largest seller was Jane Street, cutting an estimated $2.56M.

  • 6 institutional investors held Roundhill Weekly T-Bill ETF (WEEK) as of Q4 2025, down from 7 in Q3 2025.
  • Funds reported $89.3M of Roundhill Weekly T-Bill ETF stock for Q4 2025, down 2.4% quarter-over-quarter.
  • 0 funds opened new Roundhill Weekly T-Bill ETF positions in Q4 2025 and 1 closed out, a net change of -1 holder.
  • The largest Roundhill Weekly T-Bill ETF buyer in Q4 2025 was GTS Securities, an estimated $390K added.
  • The largest Roundhill Weekly T-Bill ETF seller in Q4 2025 was Jane Street, an estimated $2.56M sold.

Based on aggregated 13F filings for Q4 2025.