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YMAT

J-Star Holding Co
YMAT

4 hedge funds and large institutions have $35.3K invested in J-Star Holding Co in 2026 Q2 according to their latest regulatory filings, with 3 funds opening new positions, 1 increasing their positions, reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

247% more capital invested

Capital invested by funds: $10.2K → $35.3K (+$25.1K)

200% more first-time investments, than exits

New positions opened: 3 | Existing positions closed: 1

100% more funds holding

Funds holding: 2 → 4 (+2)

0.08% more ownership

Funds ownership: 0% → 0.08% (+0.08%)

Holders
4
Holders Change
+2
Holders Change %
+100%
% of All Funds
0.05%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
1
Reduced
–
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
TRCT
Tower Research Capital (TRC)
New York
+$8.07K
2
SG
StoneX Group
New York
+$7.3K
3
XT
XTX Topco
Cayman Islands
+$4.01K
4
UBS Group
UBS Group
Switzerland
+$3.56K

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$6.23K

YMAT Hedge Fund Activity: Q2 2026 in Review

4 of the 8,318 institutional investors tracked by Wall St. Rank reported a position in J-Star Holding Co (YMAT) for Q2 2026, worth a combined $35.3K — up 247% from $10.2K a quarter earlier.

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

The largest buyer was Tower Research Capital (TRC), opening a new position worth an estimated $8.07K. The largest seller was Citadel Advisors, exiting entirely with an estimated $6.23K sold.

  • 4 institutional investors held J-Star Holding Co (YMAT) as of Q2 2026, up from 2 in Q1 2026.
  • Funds reported $35.3K of J-Star Holding Co stock for Q2 2026, up 247% quarter-over-quarter.
  • 3 funds opened new J-Star Holding Co positions in Q2 2026 and 1 closed out, a net change of +2 holders.
  • The largest J-Star Holding Co buyer in Q2 2026 was Tower Research Capital (TRC), an estimated $8.07K added.
  • The largest J-Star Holding Co seller in Q2 2026 was Citadel Advisors, an estimated $6.23K sold.

Based on aggregated 13F filings for Q2 2026.