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Spirent Communications plcLSE:SPT Stock Report

Market Cap UK£1.2b
Share Price
UK£1.99
UK£2
0.7% undervalued intrinsic discount
1Y13.8%
7D0.2%
Portfolio Value
View

Spirent Communications plc

LSE:SPT Stock Report

Market Cap: UK£1.2b

This company listing is no longer active

This company may still be operating, however this listing is no longer active. Find out why through their latest events.

Spirent Communications (SPT) Stock Overview

As of October 15, 2025, operates as a subsidiary of Keysight Technologies, Inc.. More details

SPT fundamental analysis
Snowflake Score
Valuation2/6
Future Growth4/6
Past Performance0/6
Financial Health6/6
Dividends0/6

SPT Community Fair Values

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Spirent Communications plc Competitors

Price History & Performance

Summary of share price highs, lows and changes for Spirent Communications
Historical stock prices
Current Share PriceUK£1.99
52 Week HighUK£2.00
52 Week LowUK£1.65
Beta0.49
1 Month Change1.53%
3 Month Change1.74%
1 Year Change13.80%
3 Year Change-20.73%
5 Year Change-32.27%
Change since IPO1,910.33%

Recent News & Updates

Recent updates

Analysis Article Mar 14

There May Be Reason For Hope In Spirent Communications' (LON:SPT) Disappointing Earnings

The market for Spirent Communications plc's ( LON:SPT ) shares didn't move much after it posted weak earnings recently...
Analysis Article Mar 06

Why Investors Shouldn't Be Surprised By Spirent Communications plc's (LON:SPT) 51% Share Price Surge

Spirent Communications plc ( LON:SPT ) shares have continued their recent momentum with a 51% gain in the last month...
Analysis Article Jan 17

Spirent Communications plc's (LON:SPT) Shareholders Might Be Looking For Exit

There wouldn't be many who think Spirent Communications plc's ( LON:SPT ) price-to-earnings (or "P/E") ratio of 13.1x...
Analysis Article Dec 15

Investors Shouldn't Overlook Spirent Communications' (LON:SPT) Impressive Returns On Capital

What trends should we look for it we want to identify stocks that can multiply in value over the long term? Ideally, a...
Analysis Article Oct 17

News Flash: 5 Analysts Think Spirent Communications plc (LON:SPT) Earnings Are Under Threat

One thing we could say about the analysts on Spirent Communications plc ( LON:SPT ) - they aren't optimistic, having...
Analysis Article Sep 07

Are Investors Undervaluing Spirent Communications plc (LON:SPT) By 34%?

Key Insights The projected fair value for Spirent Communications is UK£2.24 based on 2 Stage Free Cash Flow to Equity...
Analysis Article Apr 26

Why The 23% Return On Capital At Spirent Communications (LON:SPT) Should Have Your Attention

What are the early trends we should look for to identify a stock that could multiply in value over the long term? One...
Analysis Article Mar 10

Spirent Communications' (LON:SPT) Shareholders Will Receive A Bigger Dividend Than Last Year

Spirent Communications plc's ( LON:SPT ) dividend will be increasing from last year's payment of the same period to...
Analysis Article Mar 08

Estimating The Fair Value Of Spirent Communications plc (LON:SPT)

Key Insights Spirent Communications' estimated fair value is UK£2.24 based on 2 Stage Free Cash Flow to Equity Spirent...
Analysis Article Jan 16

Here's Why Spirent Communications (LON:SPT) Has Caught The Eye Of Investors

The excitement of investing in a company that can reverse its fortunes is a big draw for some speculators, so even...
Analysis Article Dec 03

Calculating The Intrinsic Value Of Spirent Communications plc (LON:SPT)

Today we will run through one way of estimating the intrinsic value of Spirent Communications plc ( LON:SPT ) by...
Analysis Article Oct 26

Investors Should Be Encouraged By Spirent Communications' (LON:SPT) Returns On Capital

Did you know there are some financial metrics that can provide clues of a potential multi-bagger? Ideally, a business...
Analysis Article Oct 07

Do Spirent Communications' (LON:SPT) Earnings Warrant Your Attention?

For beginners, it can seem like a good idea (and an exciting prospect) to buy a company that tells a good story to...
Analysis Article Aug 27

Is There An Opportunity With Spirent Communications plc's (LON:SPT) 24% Undervaluation?

Today we'll do a simple run through of a valuation method used to estimate the attractiveness of Spirent Communications...
Analysis Article Aug 07

Spirent Communications' (LON:SPT) Shareholders Will Receive A Bigger Dividend Than Last Year

Spirent Communications plc ( LON:SPT ) has announced that it will be increasing its dividend from last year's...
Analysis Article May 24

Calculating The Fair Value Of Spirent Communications plc (LON:SPT)

Does the May share price for Spirent Communications plc ( LON:SPT ) reflect what it's really worth? Today, we will...
Analysis Article May 02

Spirent Communications (LON:SPT) Is Investing Its Capital With Increasing Efficiency

To find a multi-bagger stock, what are the underlying trends we should look for in a business? Firstly, we'll want to...

Shareholder Returns

SPTGB CommunicationsGB Market
7D0.2%18.8%2.4%
1Y13.8%100.6%21.7%

Return vs Industry: SPT underperformed the UK Communications industry which returned 23.2% over the past year.

Return vs Market: SPT exceeded the UK Market which returned 12.2% over the past year.

Price Volatility

Is SPT's price volatile compared to industry and market?
SPT volatility
SPT Average Weekly Movement0.8%
Communications Industry Average Movement8.1%
Market Average Movement5.7%
10% most volatile stocks in GB Market11.5%
10% least volatile stocks in GB Market3.1%

Stable Share Price: SPT has not had significant price volatility in the past 3 months compared to the UK market.

Volatility Over Time: SPT's weekly volatility (1%) has been stable over the past year.

About the Company

FoundedEmployeesCEOWebsite
19361,490Eric Updykecorporate.spirent.com

As of October 15, 2025, operates as a subsidiary of Keysight Technologies, Inc..

Spirent Communications plc Fundamentals Summary

How do Spirent Communications's earnings and revenue compare to its market cap?
SPT fundamental statistics
Market capUK£1.17b
Earnings (TTM)UK£5.36m
Revenue (TTM)UK£350.60m
218.7x
P/E Ratio
3.3x
P/S Ratio

Earnings & Revenue

Key profitability statistics from the latest earnings report (TTM)
SPT income statement (TTM)
RevenueUS$471.00m
Cost of RevenueUS$129.30m
Gross ProfitUS$341.70m
Other ExpensesUS$334.50m
EarningsUS$7.20m

Last Reported Earnings

Jun 30, 2025

Next Earnings Date

n/a

Earnings per share (EPS)0.012
Gross Margin72.55%
Net Profit Margin1.53%
Debt/Equity Ratio0%

How did SPT perform over the long term?

See historical performance and comparison

Dividends

1.8%
Current Dividend Yield
0%
Payout Ratio

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/10/17 21:18
End of Day Share Price 2025/10/15 00:00
Earnings2025/06/30
Annual Earnings2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Spirent Communications plc is covered by 17 analysts. 2 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Alban CousinArete Research Services LLP
Gerardus VosBarclays
Stuart JeffreyBarclays