Monday, July 06, 2026
Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust (GBAB)
By Century Financial in 'Investment Insights'
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GBAB is a municipal bond ETF with a 10.71% dividend yield. Assuming a 3-year holding period, according to Bloomberg, a cash flow return of 24% in a no-leverage scenario, 29% in a 1x leverage scenario and 33% in a 2x leverage scenario is expected.
| Leverage Scenario | Return % |
|---|---|
| No Leverage | 24.21% |
| 1x Leverage | 28.66% |
| 2x Leverage | 33.10% |
About the Instrument
GBAB is a US-listed ETF that holds investment-grade Build America Bonds and has a dividend yield of 10.71%. GBAB's position as a taxable municipal bond vehicle with investment-grade quality makes it suitable for income-focused investors seeking regular monthly distributions and modest capital appreciation.
The fund holds a diversified portfolio across sectors, including healthcare, education, housing, and transportation. According to the ETF's fact sheet, credit ratings remain predominantly investment-grade, with selective exposure to high yield. The portfolio structure has 63% municipal bonds, 47% corporate debt, and 16% mortgage-backed securities, ensuring broad diversification. Note that the ETF uses leverage, which is why the holdings sum to more than 100%. This leverage is achieved through borrowings and is used to magnify the fund's income yield, supporting an annualised distribution rate.
Effective portfolio duration is 7.20 years, positioning the fund for intermediate-term interest-rate exposure. The expense ratio of 1.27% reflects active management costs typical for municipal credit expertise.
3-Year Cash Flow Projections
Below we have assumed 3 cases: no leverage, 1x leverage and 2x leverage. The calculations have been done assuming a $100,000 investment, and the following have been included:
- Net Dividend: The ETF has maintained a dividend of $0.12573 per share per month since 2016; the same has been assumed over the next three years as well. Furthermore, a withholding tax of 30% has been applied. These have then been reinvested every year back into GBAB.
- Cost of Borrowing: A cost of borrowing of 6.12% has been assumed per annum. Note that the calculations below have assumed that the yield changes the same.
| Line item (USD) | Year 1 | Year 2 | Year 3 | Total | Cash Flow Return % |
|---|---|---|---|---|---|
| No Leverage | |||||
| Dividend Earned | 7,496 | 8,057 | 8,661 | 24,214 | 24.21% |
| Interest on loan | - | - | - | - | |
| Net income | 7,496 | 8,057 | 8,661 | 24,214 | |
| Closing Equity | 107,496 | 115,553 | 124,214 | ||
| 1x Leverage | |||||
| Dividend Earned | 14,991 | 15,656 | 16,371 | 47,018 | 28.66% |
| Interest on loan | -6,120 | -6,120 | -6,120 | -18,360 | |
| Net income | 8,871 | 9,536 | 10,251 | 28,658 | |
| Closing Position | 108,871 | 118,407 | 128,658 | ||
| 2x Leverage | |||||
| Dividend Earned | 22,487 | 23,255 | 24,081 | 69,822 | 33.10% |
| Interest on loan | -12,240 | -12,240 | -12,240 | -36,720 | |
| Net income | 10,247 | 11,015 | 11,841 | 33,102 | |
| Closing Equity | 110,247 | 121,262 | 133,102 | ||
Scenario Analysis
Bond prices are affected by yield movements. To capture this relationship, we have used regression analysis to examine the relationship between GBAB's price and 10-year US yields. The regression equation is as follows: log(Y)= 1.68 - 0.81*log(X). The standard deviation of error is 0.08, and the study assumes a 90% confidence interval.
| Possible Scenarios | |||
|---|---|---|---|
| Change in Yield | Estimated US 10-Year Government Bond Yield (%) | Estimated GBAB Approx. Price ($) | Estimated % Change in GBAB |
| Current Levels | 4.50 | 14.29 | - |
| Decreases by 50 bps | 4.00 | 15.72 | 10.0% |
| Decreases by 100 bps | 3.50 | 17.51 | 22.5% |
| Increases by 50 bps | 5.00 | 13.13 | -8.2% |
| Increases by 100 bps | 5.50 | 12.16 | -15.0% |
According to the regression analysis, a 50-bps increase in yields would decrease GBAB's price by 8%, while a 100-bps increase would decrease it by 15%. On the flip side, a 50-bps decrease in yields can cause a 10% price appreciation, while a 100-bps decrease can result in a 23% price appreciation.
Position Analysis
In addition to the cash flow analysis, capital gains and losses from yield movements are shown below (using the results from the regression analysis). In the case where there is no change in yields, the net PnL would be the same as the return presented above.
| Scenario | Position Value ($) | Quantity | Dividend ($) | Capital Gain /(Loss) $ | Cost of Borrowing $ | PnL ($) | PnL (%) |
|---|---|---|---|---|---|---|---|
| No Leverage | |||||||
| Decreases by 50 bps | 100,000 | 7,097 | 24,214 | 9,976 | - | 34,190 | 34.19% |
| Decreases by 100 bps | 22,496 | 46,711 | 46.71% | ||||
| Increases by 50 bps | -8,154 | 16,061 | 16.06% | ||||
| Increases by 100 bps | -14,955 | 9,260 | 9.26% | ||||
| 1x Leverage | |||||||
| Decreases by 50 bps | 200,000 | 14,194 | 47,018 | 19,952 | -18,360 | 48,610 | 48.61% |
| Decreases by 100 bps | 44,992 | 73,651 | 73.65% | ||||
| Increases by 50 bps | -16,307 | 12,351 | 12.35% | ||||
| Increases by 100 bps | -29,909 | -1,251 | -1.25% | ||||
| 2x Leverage | |||||||
| Decreases by 50 bps | 300,000 | 21,292 | 69,822 | 29,928 | -36,720 | 63,030 | 63.03% |
| Decreases by 100 bps | 67,489 | 100,591 | 100.59% | ||||
| Increases by 50 bps | -24,461 | 8,641 | 8.64% | ||||
| Increases by 100 bps | -44,864 | -11,762 | -11.76% | ||||
If there is a 50-bps increase in yields, the PnL would be about 16%, under a no-leverage scenario. Note that despite the capital loss, the PnL is positive due to the dividends received. On the contrary, for a 50-bps decrease in yields, the PnL would be about 34%. This return is much higher, as you are receiving about 10% capital appreciation and about 24% dividend yield.
The analysis assumes a maximum increase of 100-basis points in yields over the next three years. While such a scenario may result in mark-to-market unrealised losses under 1x and 2x leverage scenarios, these losses would not necessarily need to be realised, provided the investment is held through the period of elevated yields. As interest rates normalise over time, bond prices are expected to recover, thereby mitigating the impact of any temporary capital depreciation.
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