Innospec Inc. (IOSP) Key Metrics

NASDAQ: IOSPValuation, returns, debt and efficiency ratios over 10 years.

IOSP valuation today

Trailing 12 months · as of October 18, 2026
Market cap
$2.38B
Enterprise value
$2.17B
P/E (TTM)
19.8
10-yr median 22.5
Forward P/E
15.0
PEG ratio
0.66
Price / sales
1.3
10-yr median 1.5
Price / book
1.8
10-yr median 2.3
EV / EBITDA
11.4
10-yr median 11.8
Dividend yield
1.85%
$1.79 a year
Beta
0.89

IOSP key metrics, 2016–2025

Fiscal year ended December 31, 2025 · U.S. dollars

IOSP valuation Price multiples at each fiscal year-end price.

P/E ratio−78.9%
16.4
2025 · hover or tap a bar for each year
2016: 20.6 (+84.1%)2017: 28.0 (+35.8%)2018: 17.9 (−36.1%)2019: 22.8 (+27.5%)2020: 78.3 (+243.6%)2021: 24.1 (−69.2%)2022: 19.3 (−19.9%)2023: 22.2 (+14.7%)2024: 77.7 (+250.3%)2025: 16.4 (−78.9%)
20162025
Price / sales−28.2%
1.1
2025 · hover or tap a bar for each year
2016: 1.9 (+43.5%)2017: 1.3 (−30.2%)2018: 1.0 (−22.2%)2019: 1.7 (+64.3%)2020: 1.9 (+11.5%)2021: 1.5 (−19.7%)2022: 1.3 (−13.5%)2023: 1.6 (+20.9%)2024: 1.5 (−5.3%)2025: 1.1 (−28.2%)
20162025
Price / book−36.8%
1.4
2025 · hover or tap a bar for each year
2016: 2.6 (+16.0%)2017: 2.2 (−15.0%)2018: 1.8 (−15.4%)2019: 2.8 (+51.3%)2020: 2.4 (−14.5%)2021: 2.2 (−8.6%)2022: 2.5 (+13.8%)2023: 2.7 (+8.6%)2024: 2.3 (−15.1%)2025: 1.4 (−36.8%)
20162025
EV / EBITDA−17.9%
9.2
2025 · hover or tap a bar for each year
2016: 12.8 (+50.5%)2017: 9.7 (−24.3%)2018: 8.3 (−14.7%)2019: 12.5 (+50.9%)2020: 25.0 (+99.9%)2021: 12.4 (−50.5%)2022: 10.9 (−11.6%)2023: 13.7 (+25.2%)2024: 11.2 (−18.0%)2025: 9.2 (−17.9%)
20162025
Price / free cash flow+12.5%
21.7
2025 · hover or tap a bar for each year
2016: 19.0 (+30.2%)2017: 34.2 (+79.9%)2018: 20.3 (−40.7%)2019: 19.6 (−3.6%)2020: 19.3 (−1.2%)2021: 41.5 (+114.5%)2022: 65.2 (+57.1%)2023: 21.2 (−67.4%)2024: 19.3 (−9.0%)2025: 21.7 (+12.5%)
20162025
Free cash flow yield−0.6 pts
4.6%
2025 · hover or tap a bar for each year
2016: 5.3% (−1.6 pts)2017: 2.9% (−2.3 pts)2018: 4.9% (+2.0 pts)2019: 5.1% (+0.2 pts)2020: 5.2% (+0.1 pts)2021: 2.4% (−2.8 pts)2022: 1.5% (−0.9 pts)2023: 4.7% (+3.2 pts)2024: 5.2% (+0.5 pts)2025: 4.6% (−0.6 pts)
20162025

IOSP valuation history

Fiscal year-endToday10-year median

IOSP returns on capital

ROEROICROA

Net income (ROE, ROA) or after-tax operating income (ROIC) divided by the average of the opening and closing balance.

IOSP debt vs cash

Total debtCash & short-term investments

Debt includes short- and long-term borrowings and, where reported, lease liabilities.

IOSP cash returned to shareholders

DividendsBuybacksFree cash flow

IOSP price vs earnings per share

Share price at year-endEPS (right axis)

IOSP key metrics

2016–2025
Innospec Inc. key metrics by fiscal year
2025202420232022202120202019201820172016
Valuation
Market capitalization$1.91B$2.76B$3.08B$2.57B$2.25B$2.25B$2.56B$1.52B$1.73B$1.67B
Enterprise value$1.67B$2.52B$2.93B$2.47B$2.14B$2.18B$2.57B$1.61B$1.86B$1.85B
P/E ratio16.477.722.219.324.178.322.817.928.020.6
Price / sales1.11.51.61.31.51.91.71.01.31.9
Price / book1.42.32.72.52.22.42.81.82.22.6
Price / free cash flow21.719.321.265.241.519.319.620.334.219.0
Price / operating cash flow13.815.014.931.524.115.415.814.520.916.0
EV / sales0.91.41.51.31.41.81.71.11.42.1
EV / EBITDA9.211.213.710.912.425.012.58.39.712.8
EV / free cash flow19.017.620.162.639.518.819.721.536.921.0
Earnings yield6.1%1.3%4.5%5.2%4.1%1.3%4.4%5.6%3.6%4.9%
Free cash flow yield4.6%5.2%4.7%1.5%2.4%5.2%5.1%4.9%2.9%5.3%
Dividend yield2.2%1.4%1.1%1.2%1.3%1.1%1.0%1.4%1.1%0.9%
Shareholder yield (dividends + buybacks)3.5%1.4%1.2%1.5%1.3%1.2%1.1%1.5%1.1%1.5%
Share price at fiscal year-end$76.54$110.06$123.24$102.86$90.34$90.73$103.44$61.76$70.60$68.50
Per share
Revenue per share$71.14$73.47$77.88$78.60$59.68$48.15$61.20$60.03$53.37$36.14
Earnings per share$4.67$1.42$5.56$5.32$3.75$1.16$4.54$3.45$2.52$3.33
Operating cash flow per share$5.53$7.35$8.28$3.27$3.75$5.89$6.54$4.26$3.38$4.28
Free cash flow per share$3.52$5.70$5.80$1.58$2.18$4.69$5.28$3.04$2.06$3.60
Cash per share$11.70$11.51$8.14$5.89$5.71$4.25$3.06$5.00$3.68$4.17
Book value per share$53.06$48.22$45.84$41.55$41.54$38.11$37.14$33.55$32.44$26.75
Tangible book value per share$34.39$30.39$27.60$25.39$24.57$20.09$17.87$13.18$10.99$5.51
Dividends per share$1.70$1.54$1.40$1.27$1.16$1.03$1.01$0.88$0.76$0.65
Capex per share$2.01$1.65$2.48$1.69$1.57$1.20$1.25$1.22$1.32$0.68
Debt per share$2.11$1.79$1.81$1.81$1.43$1.65$3.74$8.57$9.16$11.18
Shares outstanding25.0M25.1M25.0M25.0M24.9M24.8M24.7M24.6M24.5M24.4M
Change in shares outstanding−0.5%+0.4%+0.2%+0.5%+0.3%+0.2%+0.5%+0.5%+0.2%−0.7%
Returns & profitability
Return on equity (ROE)9.2%3.0%12.7%12.8%9.4%3.1%12.9%10.5%8.5%12.9%
Return on invested capital (ROIC)12.9%15.7%13.4%14.5%10.1%2.7%12.1%9.4%7.4%11.7%
Return on assets (ROA)6.5%2.1%8.4%8.4%6.3%2.0%7.6%5.9%4.8%7.4%
Return on tangible assets8.5%2.8%11.1%11.1%8.1%3.0%11.3%8.7%7.0%12.3%
Free cash flow margin4.9%7.8%7.5%2.0%3.6%9.7%8.6%5.1%3.9%10.0%
Income quality (OCF / net income)1.195.181.490.611.005.081.441.231.341.29
Financial health
Total debt$52.7M$44.9M$45.2M$45.3M$35.6M$40.8M$92.6M$210.9M$224.3M$273.3M
Cash & short-term investments$292.5M$289.2M$203.7M$147.1M$141.8M$105.3M$75.7M$123.1M$90.2M$101.9M
Net debt−$239.8M−$244.3M−$158.5M−$101.8M−$106.2M−$64.5M$16.9M$87.8M$134.1M$171.4M
Debt / equity0.040.040.040.040.030.040.100.260.280.42
Debt / assets0.030.030.030.030.020.030.060.140.160.23
Net debt / EBITDA−1.32−1.09−0.74−0.45−0.61−0.740.080.450.701.19
Current ratio2.792.582.382.152.162.242.082.242.152.41
Quick ratio1.881.771.581.231.341.371.271.401.341.46
Interest coverage——70.3170.388.118.731.219.315.832.9
Working capital$644.5M$585.2M$514.2M$466.8M$391.5M$313.8M$326.8M$367.3M$299.9M$258.0M
Invested capital$1.09B$966.9M$988.6M$936.2M$926.2M$879.9M$935.4M$913.3M$928.4M$825.2M
Tangible asset value$866.2M$768.2M$693.0M$636.6M$611.2M$498.4M$442.4M$324.3M$269.2M$134.6M
Net current asset value$505.1M$438.0M$327.9M$309.3M$190.2M$113.7M$80.4M$16.0M−$54.4M−$86.5M
Graham number$74.63$39.21$75.72$70.55$59.17$31.52$61.58$51.07$42.92$44.74
Graham net-net per share$8.58$7.06$2.63$0.85−$1.77−$2.87−$5.37−$7.76−$9.70−$9.12
Capital allocation
Dividends paid$42.4M$38.8M$35.1M$31.7M$28.8M$25.6M$25.0M$21.7M$18.6M$15.9M
Share buybacks (net)$23.9M$700,000$1.1M$5.9M$800,000$2.1M$2.4M$1.4M$1.1M$8.4M
Dividend payout ratio36.4%109.0%25.2%23.8%30.9%89.2%22.3%25.5%30.1%19.6%
Dividends + buybacks / free cash flow75.3%27.6%24.9%95.4%54.7%23.8%21.0%30.9%39.0%27.6%
Capex / revenue2.8%2.2%3.2%2.2%2.6%2.5%2.0%2.0%2.5%1.9%
Capex / operating cash flow36.4%22.4%30.0%51.8%42.0%20.4%19.2%28.7%38.9%15.8%
Capex / depreciation1.150.951.581.050.920.650.650.610.640.43
Stock-based compensation / revenue0.5%0.5%0.4%0.3%0.3%0.5%0.4%0.3%0.3%0.4%
R&D / revenue2.9%2.6%2.1%2.0%2.5%2.6%2.3%2.3%2.4%2.9%
SG&A / revenue16.0%17.0%19.6%18.4%18.0%19.9%17.3%16.1%16.9%22.3%
Efficiency
Days sales outstanding70.269.465.057.562.278.568.964.855.760.3
Days of inventory on hand89.584.290.586.286.699.785.980.277.5110.5
Days payables outstanding48.145.944.241.643.147.443.442.935.937.0
Cash conversion cycle (days)111.6107.7111.3102.2105.8130.9111.4102.197.3133.8
Receivables turnover5.205.265.616.345.864.655.295.636.556.05
Payables turnover7.607.968.268.778.487.718.428.5210.189.86
Inventory turnover4.084.334.034.234.213.664.254.554.713.30
Asset turnover1.001.071.181.241.000.831.031.021.010.80
Average receivables$342.0M$350.8M$347.2M$309.6M$252.9M$256.7M$285.9M$262.1M$199.4M$145.9M
Average payables$169.2M$163.7M$164.4M$157.0M$123.7M$110.3M$124.4M$122.3M$88.8M$55.9M
Average inventory$315.1M$300.6M$336.6M$325.4M$248.8M$232.3M$246.3M$228.9M$191.8M$166.8M
Intangibles / total assets25.5%25.8%26.7%25.2%26.9%32.0%32.4%34.0%37.2%43.9%

Computed from IOSP's annual financial statements (latest annual report filed February 18, 2026) and the closing share price on each fiscal year-end, adjusted for stock splits. Figures in U.S. dollars; data from EODHD. Averages use the opening and closing balance of each year.

IOSP valuation and financial ratios

At the end of fiscal 2025 (December 31, 2025), Innospec traded at 16.4 times earnings, against a 10-year median of 22.5. Based on the latest twelve months, the trailing P/E is 19.8 and the forward P/E is 15.0. Innospec earned a return on equity of 9.2% and a return on invested capital of 12.9% in fiscal 2025. It ended the year with $52.7 million of debt and $292.5 million in cash and short-term investments, a net cash position of $239.8 million. It returned $66.3 million to shareholders: $42.4 million in dividends and $23.9 million in share buybacks, 75% of free cash flow.

See the IOSP income statement, the IOSP chart for price history, or the IOSP stock overview for the latest quote and news.

IOSP key metrics FAQ

What is Innospec's P/E ratio?

Innospec's trailing P/E ratio is 19.8 based on the last twelve months of earnings (as of October 18, 2026), and its forward P/E is 15.0. At the end of fiscal 2025 it was 16.4, compared with a 10-year median of 22.5.

What is Innospec's EV/EBITDA?

Innospec's enterprise value was 9.2 times EBITDA at the end of fiscal 2025 (enterprise value $1.7 billion, EBITDA $181.7 million); the current EV/EBITDA is 11.4.

What is Innospec's return on equity?

Innospec's return on equity (ROE) was 9.2% in fiscal 2025: net income of $116.6 million on average shareholders' equity of $1.3 billion.

What is Innospec's ROIC?

Innospec's return on invested capital was 12.9% in fiscal 2025, using after-tax operating income divided by average debt plus equity minus cash.

How much debt does Innospec have?

Innospec had total debt of $52.7 million at the end of fiscal 2025, a debt-to-equity ratio of 0.04 and more cash than debt.

What is Innospec's dividend yield?

Innospec's forward dividend yield is 1.85%. Innospec paid $42.4 million in dividends in fiscal 2025 ($1.70 per share), a payout ratio of 36.4%.

Does Innospec buy back its shares?

Yes. Innospec spent $23.9 million on net share repurchases in fiscal 2025 Shares outstanding changed −0.5% over the year, to 25.0M..

What is Innospec's free cash flow yield?

Innospec generated $88.0 million of free cash flow in fiscal 2025, a free cash flow yield of 4.6% on its market value at year-end ($1.9 billion).

What is Innospec's current ratio?

Innospec's current ratio was 2.79 at the end of fiscal 2025: current assets were 2.79 times current liabilities.

Specialty Chemicals key metrics