Event-Driven Stocks

Pioneer Municipal High Income Opportunities Fund, Inc.

MIO

Other · MD · SEC filings ↗ · Compare ⊕

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Financials

SEC XBRL · annual

No structured XBRL financials available (common for pre-2009 filers, foreign issuers, or companies that never reported as a US public company).

5%+ owners

SEC Schedule 13D / 13G · last 3 yrs

Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.

Short interest

FINRA · bi-monthly
SettlementShares shortDays to coverΔ vs prior
Aug 15, 202516,1521.0-7.8%
Jul 31, 202517,5191.0-8.2%
Jul 15, 202519,0911.0+75.0%
Jun 30, 202510,9111.0+85.2%
Jun 13, 20255,8931.0-14.2%

Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.

Material events

SEC Form 8-K · most recent

Events the company reported on Form 8-K, labelled by the SEC item code it filed under — its own classification, not our interpretation.

Recent SEC filings

All filings ↗

Event-driven situations (1)