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AMPL vs BL

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Amplitude, Inc. Class A Common Stock and BlackLine, Inc. Common Stock

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Daily close · 2026-10-15

Price return

Both stocks start at 0% on the first shared trading day.

AMPL-71.74%
BL-75.27%
Price return: AMPL and BLHistorical recorded observations on the same scale. Missing metrics leave gaps.-101%-60%-19%22%63%202120222023202420252026

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Similarity
75.3%
5 shared / 6 total tags

How similar are their businesses?

The score compares business activities in annual filings released in 2025. Core activities receive four times the weight of material activities. Industries that fewer companies share carry more weight.

AnalyticsEnterprise SoftwareSaaSSoftwareTechnology
How we measure overlap ↗
The businesses behind the score

Industry overlap

Filing-derived business activity overlapCounts of retained positive business classifications. Circle sizes do not encode the counts or the weighted similarity score.AMPL only1Shared5BL only0

AMPL only · 1

Shared activities · 5

BL only · 0

No activities in this group.

Positive activities from the two selected annual filings. Up to six activities per group are shown here; every activity remains in the complete table. These are classification sets, not revenue shares. The weighted similarity score also accounts for exposure and how common each activity is.
Show business activity table · 6 rows, 3 columns

Core activities receive full weight; material activities receive one quarter. Select a tag to read the filing evidence.

Business activityAMPLBL
CoreMaterial
CoreCore
CoreCore
CoreCore
CoreCore
MaterialNot tagged

Analytics

AMPL Core

Annual filing released 2025-02-20 · GPT 6 Luna

Founded in 2012, Amplitude is driving the evolution of digital analytics as part of our mission to help companies build better products and digital experiences. We believe we were the first company to recognize that traditional analytics tools were built for websites and marketing campaigns, not for understanding how people engage with digital products. That’s why we believe we have built the industry’s first Digital Analytics Platform designed specifically to analyze behavioral data and provide real-time, actionable insights that drive business outcomes. Today, our platform goes far beyond standalone analytics. It unifies Analytics, Session Replay, Experimentation, Audience Activation, and Guides and Surveys, allowing teams to seamlessly move from data to insights to actions—all in one place.
•Amplitude Analytics: As mentioned, Amplitude Analytics is the cornerstone of the platform and provides real-time insights into user behavior. It combines advanced quantitative metrics with qualitative tools like funnel analysis and cohort tracking to help businesses understand what’s driving engagement, conversion, and retention. •Amplitude Session Replay: A critical tool for understanding user behavior, Amplitude Session Replay complements Amplitude Analytics and offers a qualitative perspective by reconstructing user journeys. Teams can see exactly how users interact with products, identify friction points, and develop targeted solutions. They then use these insights to get a better understanding of why users are doing what they are doing.
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BL Material

Annual filing released 2025-02-21 · GPT 6 Luna

The solution can be used as a cloud-based, controlled checklist that includes reporting and alerts to drive greater collaboration, accountability, and visibility; •Smart Close for SAP is a fully embedded, purpose-built solution to streamline and automate the close directly in SAP. Smart Close complements our cloud financial close management solutions to achieve end-to-end automation. Purpose-built automation allows customers to automate task and job scheduling, verify the correctness of closing transactions, and take action, like raising alerts, making corrections, or pushing the closing process to the next step with job scheduling; •Financial Reporting Analytics is a modern solution that enables analysis and validation of group level or consolidated financial data with direct, real-time visibility into the local or underlying details.
The historically manual work behind accounts receivable processes can lead to siloed work and a lack of end-to-end visibility. Team & Task Management provides full visibility into the accounts receivable process, monitors critical actions against the volume of work, and allocates resources based on team capacity to prioritize risk management and cash collection; •AR Intelligence automatically processes, analyzes, and surfaces critical information, such as sales and payment performance data, customer payment trends, and days sales outstanding. This solution unifies the data across BlackLine’s Invoice-to-Cash suite to provide data typically difficult to obtain in real-time; 7
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Enterprise Software

AMPL Core

Annual filing released 2025-02-20 · GPT 6 Luna

We generate revenue primarily by selling subscriptions to our Digital Analytics Platform, and reach customers through a direct sales motion, solution partners, and product-led growth initiatives. Our customers typically start out using Amplitude for a specific business use case. As they see the value of our data, insights, and actions to drive positive business outcomes, they frequently expand beyond that initial use case. Land •We believe that our Digital Analytics Platform is applicable to businesses across industries, company size, and stage of digital maturity. We offer product packages that meet companies where they are in their digital analytics journey. And we plan to invest to capture the significant market opportunity that is out there.
•Enterprise: Leverage trusted data at scale with enterprise-grade security features for larger companies with complex needs and controls. We realize that events are sometimes hard to predict, so all plans are now available based on monthly tracked users (MTUs). This makes it easier to predict usage and enable customers to pay according to their monthly unique users. For the year ended December 31, 2024, subscription revenue comprised 98% of our total revenue. Our aforementioned ability to expand within our customer base is also demonstrated by our dollar-based net retention rate. As of December 31, 2024 and 2023, our dollar-based net retention rate for the trailing twelve months (“TTM”) across paying customers was 97% and 101%, respectively. Technology 11
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BL Core

Annual filing released 2025-02-21 · GPT 6 Luna

Our solutions unify systems and data and work to drive accuracy, collaboration, efficiency, and control. Our solutions enable accounting and finance professionals to execute their work continuously, empowering real-time insights and business partnership. Products and Services Our products are comprised of financial close & consolidation, intercompany accounting, and invoice-to-cash. We also provide resources and services for implementation. Financial Close & Consolidation The collection of processes by which organizations reconcile, consolidate, and report their financial information at the end of each period is referred to as record-to-report. For organizations of any size, traditional processes are heavily manual and rely upon error-prone spreadsheets, increasing risk and threatening the accuracy of financial reporting.
We enable a proactive approach that prevents issues before they escalate, safeguarding financial integrity. By combining automation, real-time insights, embedded controls, and flexible and scalable design, our solutions ensure organizations can meet the increasing demands on the Office of the CFO, despite system complexity and evolving regulatory landscape. Our future-ready platform enables financial operations excellence and empowers the Office of the CFO to deliver strategic value to their organizations. Customers Our customers include multinational corporations, large enterprises, and mid-size companies across a broad array of industries. These businesses include publicly-listed entities and privately-owned enterprises, as well as non-profit entities. At December 31, 2024, we had 397,477 individual users across 4,443 customers, exclusive of on-premise software.
Read the annual filing ↗

SaaS

AMPL Core

Annual filing released 2025-02-20 · GPT 6 Luna

Description of Business Amplitude, Inc. (the “Company”) was incorporated in the state of Delaware in 2011 and is headquartered in San Francisco, California. The Company provides a Digital Analytics Platform that helps businesses understand how people are using their digital products so they can improve the digital experience provided by those digital products. The Company delivers its application over the Internet as a subscription service using a software-as-a-service (“SaaS”) model. The Company’s arrangements with customers do not provide the customer with the right to take possession of the software supporting the cloud-based application service at any time. The Company also offers customer support related to initial implementation setup, ongoing support services, and application training.
Revenue is recognized at the time the related performance obligation is satisfied by transferring the control of the promised service to a customer. For subscription services, revenue is recognized as the customer is given access to the core subscription service, in an amount that reflects the consideration that the Company expects to receive in exchange for access to the services. With respect to professional services, the Company recognizes revenue as services are delivered. The Company generates all its revenue from contracts with customers. Subscription revenue The Company generates revenue from subscription services including SaaS subscriptions and customer support services subject to contractual subscription terms. SaaS subscriptions enable customers to access and send event volume data to the Company’s cloud-based platform.
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BL Core

Annual filing released 2025-02-21 · GPT 6 Luna

As described in Note 2 to the consolidated financial statements, customers pay subscription and support fees for access to the Company’s software as a service (SaaS) platform. The Company's subscription contracts have initial terms of one year to three years with renewal options. Fees are based on a number of factors, including the solutions subscribed for by the customer and the number of users having access to the solutions. Subscription services, which includes support, is recognized on a straight-line basis over the non-cancellable contractual term of the arrangement, generally beginning on the date that the Company’s service is made available to the customer. The Company’s subscription and support revenue for the year ended December 31, 2024 was $619.3 million, of which a majority pertains to certain of the Company’s subscription and support revenue.
Note 3 – Segment Information Management has determined that the Company has one operating and reportable segment. The Company provides subscription and support services that consist of a cloud-based platform designed to unify, automate, and streamline accounting and finance operations, and also provides professional services that consist of implementation and consulting services. The technology used in the subscription and support services is based on a single software platform that is deployed to and implemented by customers. The Company manages the business activities on a consolidated basis, and operating segments have not been aggregated.
Read the annual filing ↗

Software

AMPL Core

Annual filing released 2025-02-20 · GPT 6 Luna

Description of Business Amplitude, Inc. (the “Company”) was incorporated in the state of Delaware in 2011 and is headquartered in San Francisco, California. The Company provides a Digital Analytics Platform that helps businesses understand how people are using their digital products so they can improve the digital experience provided by those digital products. The Company delivers its application over the Internet as a subscription service using a software-as-a-service (“SaaS”) model. The Company’s arrangements with customers do not provide the customer with the right to take possession of the software supporting the cloud-based application service at any time. The Company also offers customer support related to initial implementation setup, ongoing support services, and application training.
Segment Information The Company has a single operating and reportable segment. The software segment provides a Digital Analytics Platform to customers using a SaaS model. The Company derives revenue primarily in the United States and manages the business activities on a consolidated basis. The accounting policies of the software segment are the same as those described in the summary of significant accounting policies. The chief operating decision maker, who, in the Company’s case, is the Chief Executive Officer (“CEO”), assesses performance for the software segment and decides how to allocate resources based on functional expenses exclusive of stock-based compensation, amortization of acquired intangible assets, non-recurring charges such as restructuring and other related charges as well as related tax impacts of these items.
Read the annual filing ↗

BL Core

Annual filing released 2025-02-21 · GPT 6 Luna

Our solutions unify systems and data and work to drive accuracy, collaboration, efficiency, and control. Our solutions enable accounting and finance professionals to execute their work continuously, empowering real-time insights and business partnership. Products and Services Our products are comprised of financial close & consolidation, intercompany accounting, and invoice-to-cash. We also provide resources and services for implementation. Financial Close & Consolidation The collection of processes by which organizations reconcile, consolidate, and report their financial information at the end of each period is referred to as record-to-report. For organizations of any size, traditional processes are heavily manual and rely upon error-prone spreadsheets, increasing risk and threatening the accuracy of financial reporting.
Note 3 – Segment Information Management has determined that the Company has one operating and reportable segment. The Company provides subscription and support services that consist of a cloud-based platform designed to unify, automate, and streamline accounting and finance operations, and also provides professional services that consist of implementation and consulting services. The technology used in the subscription and support services is based on a single software platform that is deployed to and implemented by customers. The Company manages the business activities on a consolidated basis, and operating segments have not been aggregated.
Read the annual filing ↗

Technology

AMPL Core

Annual filing released 2025-02-20 · GPT 6 Luna

Founded in 2012, Amplitude is driving the evolution of digital analytics as part of our mission to help companies build better products and digital experiences. We believe we were the first company to recognize that traditional analytics tools were built for websites and marketing campaigns, not for understanding how people engage with digital products. That’s why we believe we have built the industry’s first Digital Analytics Platform designed specifically to analyze behavioral data and provide real-time, actionable insights that drive business outcomes. Today, our platform goes far beyond standalone analytics. It unifies Analytics, Session Replay, Experimentation, Audience Activation, and Guides and Surveys, allowing teams to seamlessly move from data to insights to actions—all in one place.
Description of Business Amplitude, Inc. (the “Company”) was incorporated in the state of Delaware in 2011 and is headquartered in San Francisco, California. The Company provides a Digital Analytics Platform that helps businesses understand how people are using their digital products so they can improve the digital experience provided by those digital products. The Company delivers its application over the Internet as a subscription service using a software-as-a-service (“SaaS”) model. The Company’s arrangements with customers do not provide the customer with the right to take possession of the software supporting the cloud-based application service at any time. The Company also offers customer support related to initial implementation setup, ongoing support services, and application training.
Read the annual filing ↗

BL Core

Annual filing released 2025-02-21 · GPT 6 Luna

Item 1. Business Overview The Office of the Chief Financial Officer (“CFO”) is relied upon to deliver timely and accurate financial reporting and business insights. Yet finance and accounting teams are facing unprecedented system and process complexity, growing data volumes, and evolving regulatory requirements, coupled with expanding roles and responsibilities. As a result, digital transformation has become a top priority for CFOs, as they require powerful technology to meet these demands. At BlackLine, our mission is to inspire, power, and guide digital finance transformation for the Office of the CFO.
Our secure, flexible, and scalable cloud-based platform empowers finance and accounting teams to achieve future-ready financial operations, modernizing processes for mid-size and enterprise organizations across all industries. For many organizations, enterprise resource planning (“ERP”) systems manage general ledger activities but do not address end-to-end processes performed across other systems and outside those systems in spreadsheets, impeding organizations’ ability to provide reliable data and insights. Our platform connects data and processes at their origin, enhancing financial reporting integrity, streamlining activities, and delivering faster insights.
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Customer Experience Software

AMPL Material

Annual filing released 2025-02-20 · GPT 6 Luna

On a day-to-day basis that means our mission is to help companies build better products and digital experiences. To make that possible, we believe we have built the industry’s first unified Digital Analytics Platform—a deeply integrated system where each product builds off of the next. Our platform brings together Analytics, Session Replay, Feature Experimentation, Web Experimentation, Audience Activation, and Guides & Surveys. It is fully self-service, and is designed to enable and activate everyone in an organization to own and drive growth. The platform works in concert to help organizations understand what features and experiences users love, where they’re getting stuck, and what keeps them coming back. And we get to the heart of what users are thinking and doing and why. This provides teams with the tools they need to improve experiences and grow their business.
•Take Action to Improve the Product Experience: We don't just help companies understand their customers. We empower them to create better digital experiences. Whether you need to test the impact of a new feature with a cohort of users, personalize your website to drive better conversion, create a product tour to improve your onboarding experience, or add an in-product survey to gather qualitative feedback, Amplitude helps teams take data-based actions quickly. •Foster Cross-Functional Collaboration: By eliminating data silos, our platform creates a shared understanding of customer behavior across teams. Out-of-the-box dashboards and customizable analytics reports bring product, marketing, engineering, and executive teams together. This shared visibility fosters alignment, enables individuals to work toward the same goals, and encourages data-driven collaboration.
Read the annual filing ↗

BL Not tagged

Annual filing released 2025-02-21 · GPT 6 Luna

This activity has no positive tag in the selected filing snapshot.

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What each company does

Compare the businesses

Amplitude, Inc. Class A Common Stock

AMPL · XNAS

Amplitude, Inc., together with its subsidiaries, provides a digital analytics platform that analyzes customer behavior in the United States and internationally. It offers Amplitude Analytics, which provides real-time insights into user behavior; Amplitude Session Replay, a tool that offers a qualitative perspective by reconstructing user journeys; Amplitude Feature Experimentation, which enables product, data, and engineering teams to build experiments; Amplitude Web Experimentation, a solution that reduces the need for engineering support and accelerates testing; Amplitude Activation, which resolves identity conflicts, streamlines data integration, and facilitates organizations to personalize and activate campaigns and experiences to segments of users in a few simple clicks; and Amplitude Guides and Surveys that helps companies to deploy in-product guides, tours, and surveys using the power of behavioral insights to fuel great results. The company also provides customer support related to initial implementation setup, ongoing support services, and application training. It delivers its application over the Internet as a subscription service using a software-as-a-service model. The company was formerly known as Sonalight, Inc. and changed its name to Amplitude, Inc. in December 2014. Amplitude, Inc. was incorporated in 2011 and is headquartered in San Francisco, California.

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BlackLine, Inc. Common Stock

BL · XNAS

BlackLine, Inc. provides cloud-based solutions to automate and streamline accounting and finance operations in the United States and internationally. It offers financial close and consolidation solutions, such as account reconciliations that provides a centralized workspace for users to collaborate on account reconciliations; transaction matching, which analyzes and reconciles individual transactions; task management to create and manage processes and task lists; and financial reporting analytics that enables analysis and validation of financial data. The company also provides journal entry, which allows users to generate, review, and post manual journal entries; variance analysis that offers anomalous fluctuations in balance sheet and income statement account balances; compliance, an integrated solution that facilitates compliance-related initiatives, consolidates project management, and provides visibility over control self-assessments and testing; and smart close for SAP solution. In addition, it offers credit and risk, collection, dispute and deduction, and team and task management, as well as AR intelligence, electronic invoicing and payment, and cash application solutions. Further, the company provides intercompany create functionality that stores permissions and business logic exceptions by entity, service, and transaction type; intercompany balance and resolve, which records an organization's intercompany transactions; and netting and settlement that enables open intercompany transactions, which integrate with treasury systems. Additionally, it offers implementation, optimization, live and web-based training, and support services. The company sells its solutions primarily through direct sales force to multinational corporations, large domestic enterprises, and mid-market companies across various industries. BlackLine, Inc. was incorporated in 2001 and is headquartered in Woodland Hills, California.

Open BL dashboard ↗
Financial data

Fundamentals side by side

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Show fundamentals table · 11 rows, 3 columns
MetricAMPLBL
ExchangeXNASXNAS
SectorTechnologyTechnology
IndustrySoftware - ApplicationSoftware - Application
Market observation2026-10-152026-10-15
Closing price (USD)$15.83$30.51
Market cap (USD)$1.98B$1.77B
P/E (TTM)Unavailable50.99×
Latest annual period2025-12-312025-12-31
Revenue (annual, USD)$343.21M$700.43M
Net income (annual, USD)$-88.54M$24.52M
Gross margin (annual)73.99%75.25%

USD values from stored observations. Fiscal period endings and availability dates may differ.

AMPL period ended 2025-12-31 · available 2026-02-19 · SEC filing ↗BL period ended 2025-12-31 · available 2026-02-26 · SEC filing ↗

Related stock comparisons

Browse all AMPL comparisons ↗ · Browse all BL comparisons ↗

Behind the comparison

Sources and methodology

Price return uses split-adjusted daily closes and excludes dividends. Both stocks start on the first shared trading day within the selected window. Unavailable metrics leave gaps.

Financials use SEC canonical statements available by the displayed cutoff, retaining each company's fiscal period end. Annual and quarterly amounts are shown separately. P/E is unavailable when earnings do not support a positive ratio.

Business overlap uses industry tags from annual filings released in 2025. Each core activity receives full weight; each material activity receives one quarter of that weight. Rarer industries carry more weight. We sum the smaller exposure for each shared activity and divide it by the sum of the larger exposure for every activity in either company. This measures business overlap, rather than price correlation or expected returns.

Related comparisons require a shared specific core activity and at least 20% overlap. Broad categories alone do not establish a close peer relationship. Identical classifications can score 100% even when companies sell different products. We select up to ten leading peers per issuer for discovery, combine both directions, and require current common shares, public company profiles and stored price observations. Arbitrary stock pairs remain available.

Statements available through 2026-10-16. Industry snapshot: 2025-12-31 · 5,721 classified issuers.