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IBDSF vs GBDC: Dividend Comparison 2026

IBDSF yields 3.21% · GBDC yields 11.86%● Live data

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After 10 years · $10,000 invested · DRIP enabled
🏆 IBDSF wins by $557.92M in total portfolio value· pulled ahead in Year 7
10 years
IBDSF
IBDSF
● Live price
3.21%
Share price
$22.65
Annual div
$0.73
5Y div CAGR
100%
Payout ratio
50%
After 10 yrs · $10,000 · DRIP
Portfolio value
$578.77M
Annual income
$546,074,786.48
Full IBDSF calculator →
GBDC
GBDC
● Live price
11.86%
Share price
$12.65
Annual div
$1.50
5Y div CAGR
51.1%
Payout ratio
50%
After 10 yrs · $10,000 · DRIP
Portfolio value
$20.85M
Annual income
$16,450,733.83
Full GBDC calculator →

Portfolio growth — IBDSF vs GBDC

📍 IBDSF pulled ahead of the other in Year 7

Annual dividend income

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Recession Test — Did They Cut Dividends?

How each stock treated shareholders during the 3 biggest crises of the last 20 years

Crisis PeriodIBDSFGBDC
2008–2009
GFC
— No data— No data
2020 Q1–Q2
COVID
— No data— No data
2022 Q4
Rate Hike
— No data— No data
Based on dividend payment history. "Increased" = dividend grew during crisis. "Maintained" = held within 3%. "Cut" = reduced by more than 3%.
📅

Dividend Calendar Overlap

Combined, IBDSF + GBDC cover 0 of 12 monthsgood coverage

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
IBDSF pays
GBDC pays
Both pay
Neither
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Tax Bracket Optimizer

Which stock is actually better after tax? Adjust your rate to find out.

IBDSF
Annual income on $10K today (after 15% tax)
$272.69/yr
After 10yr DRIP, annual income (after tax)
$464,163,568.51/yr
GBDC
Annual income on $10K today (after 15% tax)
$1,007.91/yr
After 10yr DRIP, annual income (after tax)
$13,983,123.76/yr
At 15% tax rate, IBDSF beats the other by $450,180,444.75/year in after-tax income after 10 years on $10,000
⚖️

Lazy Portfolio Split Optimizer

What's the optimal mix of IBDSF + GBDC for your $10,000?

IBDSF: 50%GBDC: 50%
100% GBDC50/50100% IBDSF
Portfolio after 10yr
$299.81M
Annual income
$281,262,760.16/yr
Blended yield
93.81%
📊

Analyst Conviction Gap

Where Wall Street is most bullish on GBDC right now

IBDSF
Analyst Ratings
2
Buy
1
Hold
Consensus: Buy
Altman Z
1.3
Piotroski
5/9
GBDC
Analyst Ratings
6
Buy
5
Hold
Consensus: Buy
Price Target
$14.00
+10.7% upside vs current
Range: $13.00 — $15.00
Altman Z
0.6
Piotroski
6/9
Analyst ratings via FMP. Altman Z-Score: >3.0 safe, 1.81–3.0 grey zone, <1.81 distress. Piotroski: 7–9 strong, 0–3 weak.
🏛️

Copy Congress — What Are Politicians Buying?

Senate & House STOCK Act disclosures (last 90 days)

IBDSF buys
0
GBDC buys
0
No recent congressional trades found for IBDSF or GBDC in the last 90 days.
STOCK Act mandates disclosure within 45 days of transaction. Data via FMP.Full tracker →
MetricIBDSFGBDC
Forward yield3.21%11.86%
Annual dividend / share$0.73$1.50
Payout ratio50%50%
1-year div growth0%0%
5-year div CAGR100%51.1%
Portfolio after 10y$578.77M$20.85M
Annual income after 10y$546,074,786.48$16,450,733.83
Total dividends collected$576.37M$20.43M
Payment frequencyquarterlyquarterly
SectorStockBDC
Analyst consensusBuyBuy

Year-by-year: IBDSF vs GBDC ($10,000, DRIP)

YearIBDSF PortfolioIBDSF Income/yrGBDC PortfolioGBDC Income/yrGap
1$11,342$641.63$12,492$1,791.70$1.1KGBDC
2$13,496$1,360.22$16,527$3,160.58$3.0KGBDC
3$17,466$3,025.36$23,588$5,904.90$6.1KGBDC
4$26,007$7,318.38$37,141$11,901.65$11.1KGBDC
5$48,196$20,368.51$66,205$26,463.38$18.0KGBDC
6$122,124$70,554.93$137,452$66,612.65$15.3KGBDC
7← crossover$464,843$334,169.62$342,372$195,298.53+$122.5KIBDSF
8$2,874,861$2,377,478.92$1,053,292$686,954.33+$1.82MIBDSF
9$30,559,701$27,483,599.71$4,111,439$2,984,416.95+$26.45MIBDSF
10$578,773,666$546,074,786.48$20,849,974$16,450,733.83+$557.92MIBDSF

IBDSF vs GBDC: Complete Analysis 2026

IBDSFStock

Iberdrola, S.A. engages in the generation, transmission, distribution, and supply of electricity in Spain and internationally. It generates and markets electrical power using renewable sources, such as onshore and offshore wind, hydro, solar photovoltaic, combined cycle gas, nuclear, and biomass, as well as through installation of batteries. The company is also involved in the purchase and sale of electricity and gas on wholesale markets; development of green hydrogen projects; and distribution and sale of gas. It has a total installed capacity of 58,320 MW, including 38,138 MW of renewable installed capacity; and operates 1.2 million kilometers of electricity transmission and distribution lines, as well as serves 36.11 million consumers. In addition, the company offers energy storage, heat pumps, self-consumption, and electric vehicles for residential customers; and management of energy facilities, as well as supplies green H2, industrial heat, etc. to industrial customers. Iberdrola, S.A. was founded in 1840 and is headquartered in Bilbao, Spain.

Full IBDSF Calculator →

GBDCBDC

Golub Capital BDC, Inc. (GBDC) is a business development company and operates as an externally managed closed-end non-diversified management investment company. It invests in debt and minority equity investments in middle-market companies that are, in most cases, sponsored by private equity investors. It typically invests in diversified consumer services, automobiles, healthcare technology, insurance, health care equipment and supplies, hotels, restaurants and leisure, healthcare providers and services, IT services and specialty retails. It seeks to invest in the United States. It primarily invests in first lien traditional senior debt, first lien one stop, junior debt and equity, senior secured, one stop, unitranche, second lien, subordinated and mezzanine loans of middle-market companies, and warrants.

Full GBDC Calculator →
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⚠️ Educational purposes only. Not financial advice. Congressional trades sourced from SEC STOCK Act filings via FMP. Past performance does not guarantee future results.