The takeaway
Guggenheim Taxable Municipal Managed Duration Trust shows a moderate seasonal pattern over 10 years of data — strongest in July (+2.4%) and softest in September (−2.1%).
Right now
In July, the stock has risen 90% of years, averaging +2.4% — essentially in line with the S&P 500.
The full picture
Guggenheim Taxable Municipal Managed Duration Trust's most dependable month has been July, higher in 9 of 10 years; September has been its least reliable, up just 20% of the time.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Win rate % | ||||||||||||
| Median return % | ||||||||||||
| 2025 | ||||||||||||
| 2024 | ||||||||||||
| 2023 | ||||||||||||
| 2022 | ||||||||||||
| 2021 | ||||||||||||
| 2020 | ||||||||||||
| 2019 | ||||||||||||
| 2018 | ||||||||||||
| 2017 | ||||||||||||
| 2016 |
Month by month
The stock's clearest edge over the S&P 500 lands in January (+1.8 pts); it has trailed the market most in October (−2.1 pts).
“vs S&P” is Guggenheim Taxable Municipal Managed Duration Trust’s average for a month minus the S&P 500’s average for that same month — isolating Guggenheim Taxable Municipal Managed Duration Trust’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, July has closed higher 100% of the time versus 90% across the last 10 years — the pattern is strengthening.
Figures are the typical (median) July return and how often it rose — the last 5 years versus the last 10(the heatmap’s default window). This verdict stays anchored to that 10-year window even if you zoom the chart, so it never disagrees with the badges above.
In plain English
The seasonal story is really one month's story — July. It has closed higher in 9 of 10 Julys, a concentration the rest of the calendar can't touch.
A typical July brings +1.3%, a shade under the +2.4% average. No month is steadier: July's returns vary by just 2.4% year to year, and even its worst July in 10 years lost only 0.7% — the gentlest downside anywhere on its calendar. Set against the S&P 500, mind, July is close to a wash — the gain mirrors the market more than it beats it. Few peers keep such company in July — the typical stock clears it just 61% of the time.
July anchors a run, too: the March-through-August window has been the stock's reliable season. At the other end of the calendar, September has been the soft spot — the weakest of 4 months that average a loss (−2.1%), and the edge isn't year-round — the stock has trailed the S&P 500 in October, September, and March. Its roughest month on record was a −11.6% September in 2022 — a reminder of how hard even a seasonal name can fall.
July has now closed higher 7 years running. If anything it has sharpened recently — the last five Julys run ahead of the earlier years.
For a stock this dependable in July, the sharper question is the rest of the year — outside its strong stretch, the calendar gives far less to lean on.
Short answers on the stock's best month (July), its worst (September), and whether it really trades seasonally.
Yes, to a moderate degree. Since 2016 its best month (July, +2.4%) has run well ahead of its worst (September, −2.1%) — the heatmap above shows how steady that gap has been year to year.
July has been the strongest, averaging +2.4% and closing higher in 9 of 10 years since 2016.
It's the weakest, averaging −2.1% — historically a soft spot, though it still varies from year to year.
Explore
These names have the strongest July track records on record — a starting point for comparison.
Before you trade