HomeCompareIOSP vs MRK

IOSP vs MRK: Dividend Comparison 2026

IOSP yields 4.00% · MRK yields 3.25% · See full DRIP projection below

vsEnter any two US tickers
After 10 years · $10,000 invested · DRIP enabled
🏆 MRK wins by $2.7K in total portfolio value
10 years
IOSP
IOSP
4.00%
Share price
$50.00
Annual div
$2.00
5Y div CAGR
5%
Payout ratio
50%
After 10 yrs · $10,000 · DRIP
Portfolio value
$28.0K
Annual income
$899.19
Full IOSP calculator →
MRK
Merck & Co. Inc.
3.25%
Share price
$94.80
Annual div
$3.08
5Y div CAGR
8.2%
Payout ratio
42%
After 10 yrs · $10,000 · DRIP
Portfolio value
$30.7K
Annual income
$950.29
Full MRK calculator →

Portfolio growth — IOSP vs MRK

Annual dividend income

MetricIOSPMRK
Forward yield4.00%3.25%
Annual dividend / share$2.00$3.08
Payout ratio50%42%
1-year div growth5%5.5%
5-year div CAGR5%8.2%
Portfolio after 10y$28.0K$30.7K
Annual income after 10y$899.19$950.29
Total dividends collected$6.4K$6.1K
Payment frequencyquarterlyquarterly
SectorStockHealthcare

Year-by-year: IOSP vs MRK ($10,000, DRIP)

YearIOSP PortfolioIOSP Income/yrMRK PortfolioMRK Income/yrGap
1$11,120$420.00$11,192$351.54$72.00MRK
2$12,357$458.31$12,524$392.70$167.00MRK
3$13,721$499.76$14,015$438.65$294.00MRK
4$15,227$544.58$15,682$489.96$455.00MRK
5$16,885$593.02$17,547$547.23$662.00MRK
6$18,713$645.34$19,632$611.16$919.00MRK
7$20,724$701.81$21,963$682.53$1.2KMRK
8$22,938$762.73$24,571$762.18$1.6KMRK
9$25,372$828.41$27,486$851.08$2.1KMRK
10$28,047$899.19$30,745$950.29$2.7KMRK

IOSP vs MRK: Complete Analysis 2026

IOSPStock

IOSP is a dividend-paying stock. Use this calculator to estimate your future dividend income, DRIP compounding returns, and passive income potential from investing in IOSP shares.

Full IOSP Calculator →

MRKHealthcare

Merck is a Dividend Aristocrat with 14+ consecutive years of increases. Keytruda (pembrolizumab) is the world's best-selling cancer drug and drives exceptional cash generation. The company's oncology and vaccines pipeline provides long-term growth visibility beyond the Keytruda patent cliff in the 2030s.

Full MRK Calculator →

Frequently Asked Questions

Is IOSP or MRK better for dividend income in 2026?
IOSP currently offers a 4.00% yield (2.00/share/year) while MRK offers 3.25% (3.08/share/year). IOSP provides higher current income. However, MRK has grown its dividend faster (8.2% 5Y CAGR), which may lead to better long-term income through compounding.
How much would $10,000 in IOSP vs MRK earn per year?
With $10,000 invested today: IOSP pays approximately $400/year. MRK pays approximately $325/year. With DRIP reinvestment over 10 years, these grow to $899/year (IOSP) and $950/year (MRK).
Does IOSP or MRK pay monthly dividends?
IOSP pays quarterly dividends. MRK pays quarterly dividends. Neither pay monthly — both use a quarterly schedule, which is preferred by investors who need regular cash flow.
📬

Get this IOSP vs MRK comparison by email

Save your analysis + get weekly dividend insights. Free forever.

More comparisons

IOSP vs SCHDIOSP vs JEPIIOSP vs OIOSP vs KOIOSP vs MAINIOSP vs JNJIOSP vs ABBVIOSP vs PFEMRK vs JNJMRK vs ABBVMRK vs PFEMRK vs BMY

⚠️ Educational purposes only. Not financial advice. All projections use historical data; actual results will vary.