Jane Street’s Roundhill Weekly T-Bill ETF WEEK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$316K Sell
3,164
-5,663
-64% -$567K ﹤0.01% 9104
2026
Q1
$883K Buy
8,827
+1,956
+28% +$196K ﹤0.01% 6793
2025
Q4
$688K Sell
6,871
-25,545
-79% -$2.56M ﹤0.01% 7008
2025
Q3
$3.24M Buy
32,416
+28,998
+848% +$2.9M ﹤0.01% 4095
2025
Q2
$342K Sell
3,418
-14,347
-81% -$1.44M ﹤0.01% 7628
2025
Q1
$1.78M Buy
+17,765
New +$1.78M ﹤0.01% 4560

Other funds holding WEEK

Jane Street's WEEK Position: Q2 2026 in Review

Jane Street reduced its Roundhill Weekly T-Bill ETF (WEEK) stake by 64% in Q2 2026, selling an estimated $567K and leaving 3,164 shares worth $316K. The position accounts for ﹤0.01% of the portfolio, ranked #9104.

Jane Street first reported a position in WEEK in Q1 2025 and has held it in 6 quarters since. The position peaked at $3.24M in Q3 2025. 5 funds tracked by Wall St. Rank hold WEEK as of Q2 2026.

  • Jane Street held 3,164 shares of Roundhill Weekly T-Bill ETF worth $316K as of Q2 2026.
  • Jane Street sold 5,663 Roundhill Weekly T-Bill ETF shares in Q2 2026, an estimated $567K.
  • Roundhill Weekly T-Bill ETF made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #9104 holding.
  • Jane Street first reported a position in Roundhill Weekly T-Bill ETF in Q1 2025 and has held it in 6 quarters since.
  • Jane Street's Roundhill Weekly T-Bill ETF position peaked at $3.24M in Q3 2025.
  • 5 funds tracked by Wall St. Rank held Roundhill Weekly T-Bill ETF as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.