Stock fact sheet · data as of
Thornburg Investment Income Builder Fund Class I (TIBIX): fair value, margin of safety and Wheel Score
Financial Services · Asset Management - Income · United States · High Yield Income
Is TIBIX undervalued?
TIBIX closed at 37.40 on 16 Oct 2026, more than 30% above the GLS average fair value of 4.27. Only 0 of the 8 models that produced a value sit above the price. By our models the shares are priced well beyond what the filed earnings, cash flow and book value support; the Sunday Scan drops names like this at the "below fair value" rule.
The 8 models disagree widely: GLS Growth gives 0.0038 while DDM gives 29.18. A spread that wide means the average is sensitive to which methods you trust; the model table below shows where each one lands, and the Quote page lets you switch any of them off.
The nightly engine files TIBIX under High Yield Income: a dividend yield above 4%.
Nine valuation models for TIBIX
Each model turns the latest filed numbers into a value per share; the GLS fair value is the simple average of the ones that produce a positive number. The last two rows are shown for reference and never enter the average. The Quote page lets you switch any model off and add your own margin of safety.
| Model | Value | vs price | What it measures |
|---|---|---|---|
| DCF | - | - | Present value of the projected free cash flows, discounted at the cost of capital; no value tonight |
| Graham Number | 0.3019 | -99% | The most a defensive investor pays for the earnings and book value per share |
| Graham Growth | 0.0829 | -100% | Graham's growth formula: EPS × (8.5 + 2 × growth), adjusted for bond yields |
| Lynch | 0.0206 | -100% | EPS × the earnings growth rate (PEG of 1), growth capped at 25% |
| GLS Growth | 0.0038 | -100% | EPS compounded ten years at the blended growth rate, discounted back at 15% a year |
| 10 Cap | 4.27 | -89% | Owner's earnings (operating cash flow less maintenance capex) capitalised at 10% |
| Payback Time | 0.2183 | -99% | Eight years of compounded free cash flow: the price at which the business pays for itself |
| DDM | 29.18 | -22% | Dividend discount model: next year's dividend ÷ (10% − 3% growth); needs a dividend |
| EPV | 0.0571 | -100% | Earnings power value: current EPS capitalised at 9% with no growth |
| Zombie (liquidation) | -0.1675 | -100% | Current assets less all liabilities, per share: the balance-sheet floor. Not in the average |
| Wall St target | 0.0000 | -100% | Analysts' average 12-month price target. Not in the average |
Quality and financial health
Financial health is average - TIBIX passes 6 of the nine Piotroski tests, which passes the Sunday Scan's "6 or more" rule. The Financials tab on the Quote page shows which tests fail. The GLS Moat score is low at 3.3 out of 10, which says the ten-year record of revenue, earnings, margins and returns on capital has been inconsistent - growth and shocks rather than steady compounding.
Returns on capital are thin or negative - ROIC 0.6%, ROE 0.7%, ROA 0.5% - with debt at 0.10 times equity and a free-cash-flow yield of 0.6%.
The dividend yield is high at 5.30% (payout ratio 1497%) - a payout above 100% of earnings, which is not covered by profits. A yield this size is often the market's way of pricing a risk to the payout, so the health score and cash flow matter more than usual.
Institutional ownership scores 3/10, insider activity 5/10 and Congressional trading 5/10 on the GLS smart-money scales.
| Piotroski F-score | 6 / 9 | ROIC | 0.6% |
|---|---|---|---|
| GLS Moat | 3.3 / 10 | ROE | 0.7% |
| Debt / equity | 0.10 | ROA | 0.5% |
| Free-cash-flow yield | 0.6% | Payout ratio | 1497% |
| Institutions | 3 / 10 | Insiders · Congress | 5 · 5 / 10 |
Wheel Score 30: No options
TIBIX has no listed options in the nightly snapshot, so there is nothing to sell and the stock cannot be wheeled however good the business; the Wheel Score is capped at 39 and shown as "No options" (30 here). The valuation and quality numbers still apply to owning the shares outright.
Volume runs at - a day on a market cap of $21.7B, with a beta of 0.77 - a low beta, so day-to-day moves are smaller than the market's; the Stability part of the Wheel Score gives that 12 of 20.
| Part | Points | From | |
|---|---|---|---|
| Value | 0 / 25 | -776% margin of safety | |
| Health | 13 / 20 | Piotroski 6/9 | |
| Moat | 5 / 15 | moat 3.3/10 | |
| Premium | 0 / 20 | no option data | |
| Stability | 12 / 20 | 0k shares/day, $21.7B cap, beta 0.77 |
The Wheel Score ranks ~7,400 US stocks for selling cash-secured puts and covered calls; it is updated nightly and is not a recommendation. The walkthrough lesson shows how the score fits into a trade, start to finish.
Upcoming events
No upcoming earnings date is recorded for TIBIX in the nightly calendar.
Earnings, dividend, IPO, split and economic calendars for the whole market, filterable to your watchlists.
Similar stocks in Asset Management - Income
The 12 companies below are the closest to Thornburg Investment Income Builder Fund Class I by market cap within the Asset Management - Income industry, each with its own fact sheet; the Compare page puts up to eight of them side by side.
| Stock | Close | Fair value | MoS | Wheel | Mkt cap |
|---|---|---|---|---|---|
| AHTFX American Funds High-Income Trust Cl F-1 Shs | 9.45 | 4.58 | -106% | 29No options | $28.5B |
| ACEIX Invesco Equity and Income Fund Class A | 11.65 | 5.55 | -110% | 26No options | $12.6B |
| HBLRX The Hartford Balanced Income Fund Class R3 | 14.85 | 7.87 | -89% | 23No options | $10.6B |
| PDI PIMCO Dynamic Income Fund | 13.98 | 45.60 | +69% | 39No options | $6.7B |
| TWEIX American Century Equity Income Investor Class | 9.29 | 12.98 | +28% | 39No options | $6.3B |
| AEUDX American Century Equity Income Fund R6 Class | 9.41 | 13.43 | +30% | 39No options | $5.9B |
| DNP DNP Select Income Fund Inc. | 9.83 | 41.48 | +76% | 39No options | $3.7B |
| CBHAX Victory Market Neutral Income Fund - Class A | 9.30 | 4.56 | -104% | 21No options | $3.7B |
| AMECX American Funds The Income Fund of America Class A | 27.63 | 38.21 | +28% | 39No options | $143.8B |
| IFAFX The Income Fund of America, Class F-1 Shares | 27.51 | 37.92 | +27% | 39No options | $144.0B |
| NEA Nuveen AMT-Free Quality Municipal Income Fund | 10.04 | 18.90 | +47% | 39No options | $3.0B |
| JPC Nuveen Preferred & Income Opportunities Fund | 6.80 | 14.89 | +54% | 39No options | $2.6B |
⚖ Compare TIBIX with 7 of them All Financial Services stocks →
Screen the whole market the same way
A free GLS Equity account gets you nightly fair value and the Wheel Score on ~7,400 US stocks, a watchlist, the scanner preview and the Sunday Scan - the same eight-rule screen, emailed every week. Pro adds the full put and call scanners, unlimited watchlists with alerts and the trade journal.
Start free See the Sunday ScanQuestions about TIBIX
Is TIBIX undervalued right now?
No: at 37.40 the stock trades 776% above the GLS average fair value of 4.27 (data as of 16 Oct 2026), well beyond what trailing earnings, cash flow and book value support.
What is the Wheel Score of TIBIX and what does it mean?
TIBIX has no listed options in our nightly snapshot, so it cannot be wheeled; its Wheel Score is capped at 39 and shown as "No options".
What is the GLS fair value for TIBIX?
4.27 per share as of 16 Oct 2026 - the simple average of the 8 valuation models (out of nine: DCF, Graham Number, Graham Growth, Lynch, GLS Growth, 10 Cap, Payback Time, DDM and EPV) that produced a positive value. The models run every night on the latest filings; the Quote page lets you switch any of them off and add a margin of safety of your own.
When does Thornburg Investment Income Builder Fund Class I report earnings next?
No upcoming earnings date is recorded for TIBIX in our calendar as of 16 Oct 2026; the Calendars page is refreshed every morning.
Does TIBIX have listed options, and how liquid are they?
No. The nightly options snapshot found no listed contracts on TIBIX, so the wheel strategy cannot be run on it and the Wheel Score is capped at 39.