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ProShares Trust UltraShort Lehman 7-10 Year Treasury
PST

Fund managers haven’t disclosed any holdings of PST yet.

PST Hedge Fund Activity: Q1 2026 in Review

9 of the 8,134 institutional investors tracked by Wall St. Rank reported a position in ProShares Trust UltraShort Lehman 7-10 Year Treasury (PST) for Q1 2026, worth a combined $3.17M — up 55% from $2.04M a quarter earlier.

Fund positioning in PST was balanced in Q1 2026: 3 funds opened new positions, 3 closed out, 2 added to existing stakes and 2 trimmed.

The largest buyer was Jane Street, opening a new position worth an estimated $673K. The largest seller was Susquehanna International Group, cutting an estimated $388K.

  • 9 institutional investors held ProShares Trust UltraShort Lehman 7-10 Year Treasury (PST) as of Q1 2026, unchanged from Q4 2025.
  • Funds reported $3.17M of ProShares Trust UltraShort Lehman 7-10 Year Treasury stock for Q1 2026, up 55% quarter-over-quarter.
  • 3 funds opened new ProShares Trust UltraShort Lehman 7-10 Year Treasury positions in Q1 2026 and 3 closed out, a net change of 0 holders.
  • The largest ProShares Trust UltraShort Lehman 7-10 Year Treasury buyer in Q1 2026 was Jane Street, an estimated $673K added.
  • The largest ProShares Trust UltraShort Lehman 7-10 Year Treasury seller in Q1 2026 was Susquehanna International Group, an estimated $388K sold.

Based on aggregated 13F filings for Q1 2026.