Morgan Stanley’s Pioneer Municipal High Income Opportunities Fund MIO Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q3 | – | Sell |
-586,927
| Closed | -$6.93M | – | 8288 |
|
|
2025
Q2 | $6.93M | Sell |
586,927
-107,555
| -15% | -$1.26M | ﹤0.01% | 3789 |
|
|
2025
Q1 | $8.19M | Sell |
694,482
-96,575
| -12% | -$1.16M | ﹤0.01% | 3527 |
|
|
2024
Q4 | $9.38M | Sell |
791,057
-52,519
| -6% | -$638K | ﹤0.01% | 3464 |
|
|
2024
Q3 | $10.5M | Sell |
843,576
-49,802
| -6% | -$603K | ﹤0.01% | 3398 |
|
|
2024
Q2 | $10.4M | Sell |
893,378
-48,654
| -5% | -$550K | ﹤0.01% | 3293 |
|
|
2024
Q1 | $10.7M | Sell |
942,032
-993,226
| -51% | -$10.9M | ﹤0.01% | 3300 |
|
|
2023
Q4 | $20.5M | Buy |
1,935,258
+409,117
| +27% | +$4.06M | ﹤0.01% | 3327 |
|
|
2023
Q3 | $14.6M | Buy |
1,526,141
+48,533
| +3% | +$508K | ﹤0.01% | 2771 |
|
|
2023
Q2 | $15.9M | Buy |
1,477,608
+1,878
| +0.1% | +$19.8K | ﹤0.01% | 2710 |
|
|
2023
Q1 | $16.1M | Buy |
1,475,730
+146,118
| +11% | +$1.62M | ﹤0.01% | 2659 |
|
|
2022
Q4 | $14.2M | Buy |
1,329,612
+274,448
| +26% | +$2.85M | ﹤0.01% | 2705 |
|
|
2022
Q3 | $10.7M | Buy |
1,055,164
+35,301
| +3% | +$427K | ﹤0.01% | 2898 |
|
|
2022
Q2 | $12.4M | Buy |
1,019,863
+559,183
| +121% | +$7.02M | ﹤0.01% | 2845 |
|
|
2022
Q1 | $6.86M | Sell |
460,680
-212,233
| -32% | -$3.46M | ﹤0.01% | 3338 |
|
|
2021
Q4 | $12.4M | Buy |
672,913
+327,949
| +95% | +$6.19M | ﹤0.01% | 2701 |
|
|
2021
Q3 | $7.03M | Buy |
+344,964
| New | +$6.93M | ﹤0.01% | 3323 |
|
Other funds holding MIO
Morgan Stanley's MIO Position: Q3 2025 in Review
Morgan Stanley sold out of Pioneer Municipal High Income Opportunities Fund (MIO) in Q3 2025, closing a stake of 586,927 shares — an estimated $6.93M sold.
Morgan Stanley first reported a position in MIO in Q3 2021 and held it in 16 quarters. The position peaked at $20.5M in Q4 2023. 1 fund tracked by Wall St. Rank holds MIO as of Q3 2025.
- Morgan Stanley reported no remaining Pioneer Municipal High Income Opportunities Fund position as of Q3 2025 after selling out during the quarter.
- Morgan Stanley sold 586,927 Pioneer Municipal High Income Opportunities Fund shares in Q3 2025, an estimated $6.93M.
- Morgan Stanley first reported a position in Pioneer Municipal High Income Opportunities Fund in Q3 2021 and held it in 16 quarters.
- Morgan Stanley's Pioneer Municipal High Income Opportunities Fund position peaked at $20.5M in Q4 2023.
- 1 fund tracked by Wall St. Rank held Pioneer Municipal High Income Opportunities Fund as of Q3 2025.
Based on Morgan Stanley's 13F filing for Q3 2025, filed 14 Nov 2025.