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MIO

Pioneer Municipal High Income Opportunities Fund
MIO

Delisted

MIO was delisted on the 22nd of August, 2025.

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

MIO Hedge Fund Activity: Q4 2025 in Review

0 of the 8,226 institutional investors tracked by Wall St. Rank reported a position in Pioneer Municipal High Income Opportunities Fund (MIO) for Q4 2025, worth a combined $0 — down 100% from $12.1K a quarter earlier.

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

The largest seller was Osaic Holdings, exiting entirely with an estimated $12.1K sold.

  • 0 institutional investors held Pioneer Municipal High Income Opportunities Fund (MIO) as of Q4 2025, down from 1 in Q3 2025.
  • Funds reported $0 of Pioneer Municipal High Income Opportunities Fund stock for Q4 2025, down 100% quarter-over-quarter.
  • 0 funds opened new Pioneer Municipal High Income Opportunities Fund positions in Q4 2025 and 1 closed out, a net change of -1 holder.
  • The largest Pioneer Municipal High Income Opportunities Fund seller in Q4 2025 was Osaic Holdings, an estimated $12.1K sold.

Based on aggregated 13F filings for Q4 2025.