Run the Numbers cover art

Run the Numbers

Run the Numbers

By: CJ Gustafson
Listen for free

About this listen

 Run the Numbers is a twice-weekly podcast about financial metrics and business models, designed for ambitious people operating tech startups. It's a collection of things host CJ Gustafson (CFO at Partstech and writer of Mostly Metrics) has learned and thought about in the trenches as a tech CFO. This show is meant to serve as a playbook of sorts for the stuff CJ wishes he knew earlier in his career, both from experience and from copying people smarter than himself. Topics frequently touch upon Startup SaaS Metrics, Annual Budgeting, Financial Forecasting, Headcount, Equity, Dilution, and Fundraising – and how all of these drive business performance and growth.CJ Gustafson Economics Management Management & Leadership
Episodes
  • The Anatomy of Financial Bubbles | Lessons From 200 Years of Market Panic

    The Anatomy of Financial Bubbles | Lessons From 200 Years of Market Panic
    Mar 19 2026
    In this episode of Run the Numbers, CJ sits down with financial historian and PayPal Mafia member Aman Varejee to explore the recurring patterns behind economic bubbles. Drawing on research from his upcoming book “A Brief History of Financial Bubbles”, Aman explains what defines a bubble, the psychology that fuels speculative manias, and why major technological shifts—from railways to the internet to AI—often coincide with periods of extreme market speculation.—SPONSORS:RightRev is an automated revenue recognition platform built for modern pricing models like usage-based pricing, bundles, and mid-cycle upgrades. RightRev lets companies scale monetization without slowing down close or compliance. For RevRec that keeps growth moving, visit https://www.rightrev.comRillet is an AI-native ERP built for modern finance teams that want to close faster without fighting legacy systems. Designed to support complex revenue recognition, multi-entity operations, and real-time reporting, Rillet helps teams achieve a true zero-day close—with some customers closing in hours, not days. If you’re scaling on an ERP that wasn’t built in the 90s, book a demo at https://www.rillet.com/cjTabs is an AI-native revenue platform that unifies billing, collections, and revenue recognition for companies running usage-based or complex contracts. By bringing together ERP, CRM, and real product usage data into a single system of record, Tabs eliminates manual reconciliations and speeds up close and cash collection. Companies like Cortex, Statsig, and Cursor trust Tabs to scale revenue efficiently. Learn more at https://www.tabs.com/runAbacum is a modern FP&A platform built by former CFOs to replace slow, consultant-heavy planning tools. With self-service integrations and AI-powered workflows for forecasting, variance analysis, and scenario modeling, Abacum helps finance teams scale without becoming software admins. Trusted by teams at Strava, Replit, and JG Wentworth—learn more at https://www.abacum.aiBrex is an intelligent finance platform that combines corporate cards, built-in expense management, and AI agents to eliminate manual finance work. By automating expense reviews and reconciliations, Brex gives CFOs more time for the high-impact work that drives growth. Join 35,000+ companies like Anthropic, Coinbase, and DoorDash at https://www.brex.com/metricsMetronome is real-time billing built for modern software companies. Metronome turns raw usage events into accurate invoices, gives customers bills they actually understand, and keeps finance, product, and engineering perfectly in sync. That’s why category-defining companies like OpenAI and Anthropic trust Metronome to power usage-based pricing and enterprise contracts at scale. Focus on your product — not your billing. Learn more and get started at https://www.metronome.com—LINKS: Mostly Talent: https://mostlymetrics.typeform.com/to/cLTxtAsNAman: https://www.linkedin.com/in/aman-verjee/https://practicalvc.com/Aman’s book: https://bigbubbletrouble.com/CJ: https://www.linkedin.com/in/cj-gustafson-13140948/Mostly metrics: https://www.mostlymetrics.com—TIMESTAMPS:0:00 Preview and intro1:38 Welcome and guest intro3:48 Defining a bubble6:03 Cognitive biases behind bubbles10:27 Sponsors — RightRev | Rillet | Tabs13:56 Do bubbles produce breakthroughs?14:35 Dot-com bubble — winners and losers16:00 UK railway bubble21:24 Bubble warning signs25:30 Sponsors — Abacum | Brex | Metronome28:47 Do bubbles attract grifters?31:11 Role of government in bubbles35:59 Bubble duration vs. severity37:32 2008 — roots go back to 199240:27 Are bubbles connected through time?43:38 Are we in an AI bubble?45:06 Nvidia vs. Cisco valuation comparison46:52 Circular finance in AI49:16 FP&A at PayPal under Thiel and Musk52:02 PayPal's referral campaign and LTV/CAC54:40 Book plug55:09 Credits#RunTheNumbersPodcast #Fintech #EconomicBubbles #FinanceHistory #CFO
    Show More Show Less
    56 mins
  • Marketplace Economics | Faire CFO Jason Lee

    Marketplace Economics | Faire CFO Jason Lee
    Mar 16 2026
    In this episode of Run the Numbers, CJ sits down with Jason Lee, CFO of Faire, to unpack the economics of wholesale marketplaces. They break down how Faire connects independent brands with local retailers, the key metrics that matter in marketplace businesses, and ROI as a decision-making framework. Jason also shares lessons from scaling Square through its IPO and how finance leaders navigate valuation resets in private markets.—SPONSORS:Metronome is real-time billing built for modern software companies. Metronome turns raw usage events into accurate invoices, gives customers bills they actually understand, and keeps finance, product, and engineering perfectly in sync. That’s why category-defining companies like OpenAI and Anthropic trust Metronome to power usage-based pricing and enterprise contracts at scale. Focus on your product — not your billing. Learn more and get started at https://www.metronome.comRightRev is an automated revenue recognition platform built for modern pricing models like usage-based pricing, bundles, and mid-cycle upgrades. RightRev lets companies scale monetization without slowing down close or compliance. For RevRec that keeps growth moving, visit https://www.rightrev.comRillet is an AI-native ERP built for modern finance teams that want to close faster without fighting legacy systems. Designed to support complex revenue recognition, multi-entity operations, and real-time reporting, Rillet helps teams achieve a true zero-day close—with some customers closing in hours, not days. If you’re scaling on an ERP that wasn’t built in the 90s, book a demo at https://www.rillet.com/cjTabs is an AI-native revenue platform that unifies billing, collections, and revenue recognition for companies running usage-based or complex contracts. By bringing together ERP, CRM, and real product usage data into a single system of record, Tabs eliminates manual reconciliations and speeds up close and cash collection. Companies like Cortex, Statsig, and Cursor trust Tabs to scale revenue efficiently. Learn more at https://www.tabs.com/runAbacum is a modern FP&A platform built by former CFOs to replace slow, consultant-heavy planning tools. With self-service integrations and AI-powered workflows for forecasting, variance analysis, and scenario modeling, Abacum helps finance teams scale without becoming software admins. Trusted by teams at Strava, Replit, and JG Wentworth—learn more at https://www.abacum.aiBrex is an intelligent finance platform that combines corporate cards, built-in expense management, and AI agents to eliminate manual finance work. By automating expense reviews and reconciliations, Brex gives CFOs more time for the high-impact work that drives growth. Join 35,000+ companies like Anthropic, Coinbase, and DoorDash at https://www.brex.com/metrics—LINKS: Mostly Talent: https://mostlymetrics.typeform.com/to/cLTxtAsNJason: https://www.linkedin.com/in/jason-lee-11787020/Faire: https://www.faire.com/CJ: https://www.linkedin.com/in/cj-gustafson-13140948/Mostly metrics: https://www.mostlymetrics.com—TIMESTAMPS:0:00 Preview and intro3:01 How Faire serves retailers5:49 Revenue model and retention metrics8:21 Recurring vs. reoccurring revenue11:54 Sponsors — Metronome | RightRev | Rillet15:17 Input vs. output metrics17:13 The business equation19:08 Metric ownership22:07 Killing metrics: signal to noise23:21 800 metrics at Faire24:51 Customer count as a misleading metric26:04 Sponsors — Tabs | Abacum | Brex29:25 Planning cadences at Faire32:41 When to reallocate resources36:40 ROI as a framework40:25 Portfolio view of investments43:53 Discipline is knowing where to say yes47:11 Faire's valuation reset50:49 Tender offer mechanics55:33 Screwing up IR at Square IPO56:52 Advice to younger self58:44 AI at Faire59:32 Claude connected to data warehouse1:00:16 Tariff analysis with AI1:02:38 Credits#RunTheNumbersPodcast #Marketplace #CFO #SaaS #FinanceLeadership
    Show More Show Less
    1 hr and 3 mins
  • Blockchain.com CFO on How Crypto Exchanges Actually Make Money

    Blockchain.com CFO on How Crypto Exchanges Actually Make Money
    Mar 12 2026

    In this episode of Run the Numbers, CJ sits down with Mike Wilcox, CFO of Blockchain.com, to unpack the economics of crypto exchanges. They discuss how platforms serve both retail traders and institutional clients, the different ways exchanges generate revenue, and the tension between blockchain’s radical transparency and the valuable first-party data exchanges control.

    —

    SPONSORS:

    Brex is an intelligent finance platform that combines corporate cards, built-in expense management, and AI agents to eliminate manual finance work. By automating expense reviews and reconciliations, Brex gives CFOs more time for the high-impact work that drives growth. Join 35,000+ companies like Anthropic, Coinbase, and DoorDash at https://www.brex.com/metrics

    Metronome is real-time billing built for modern software companies. Metronome turns raw usage events into accurate invoices, gives customers bills they actually understand, and keeps finance, product, and engineering perfectly in sync. That’s why category-defining companies like OpenAI and Anthropic trust Metronome to power usage-based pricing and enterprise contracts at scale. Focus on your product — not your billing. Learn more and get started at https://www.metronome.com

    RightRev is an automated revenue recognition platform built for modern pricing models like usage-based pricing, bundles, and mid-cycle upgrades. RightRev lets companies scale monetization without slowing down close or compliance. For RevRec that keeps growth moving, visit https://www.rightrev.com

    Rillet is an AI-native ERP built for modern finance teams that want to close faster without fighting legacy systems. Designed to support complex revenue recognition, multi-entity operations, and real-time reporting, Rillet helps teams achieve a true zero-day close—with some customers closing in hours, not days. If you’re scaling on an ERP that wasn’t built in the 90s, book a demo at https://www.rillet.com/cj

    Tabs is an AI-native revenue platform that unifies billing, collections, and revenue recognition for companies running usage-based or complex contracts. By bringing together ERP, CRM, and real product usage data into a single system of record, Tabs eliminates manual reconciliations and speeds up close and cash collection. Companies like Cortex, Statsig, and Cursor trust Tabs to scale revenue efficiently. Learn more at https://www.tabs.com/run

    Abacum is a modern FP&A platform built by former CFOs to replace slow, consultant-heavy planning tools. With self-service integrations and AI-powered workflows for forecasting, variance analysis, and scenario modeling, Abacum helps finance teams scale without becoming software admins. Trusted by teams at Strava, Replit, and JG Wentworth—learn more at https://www.abacum.ai

    —

    LINKS:

    Mostly Talent: https://mostlymetrics.typeform.com/to/cLTxtAsN

    Mike: https://www.linkedin.com/in/mike-wilcox-65078a12/

    https://www.blockchain.com/

    CJ: https://www.linkedin.com/in/cj-gustafson-13140948/

    Mostly metrics: https://www.mostlymetrics.com

    —

    TIMESTAMPS:

    Here's the trimmed version:

    0:00 Preview and intro2:12 Tradfi to crypto transition3:49 Blockchain.com origin5:45 CFO as business partner6:01 Finance team backgrounds7:02 Banking relationships8:51 On ramps and off ramps8:51 Retail vs. institutional10:53 Sponsors — Brex | Metronome | RightRev14:09 B2C to B2B motion16:04 Shared infrastructure18:31 Go-to-market differences19:00 Brand equity and low CAC20:06 Education as top-of-funnel21:13 Institutional vs. retail volatility22:37 Exchange vs. brokerage model23:56 How brokerages make money24:06 Sponsors — Rillet | Tabs | Abacum27:31 Setting take rates29:13 Distribution flywheel30:13 Data as a moat31:13 Nigeria market playbook31:44 Crypto balance sheet33:25 Duration matching34:37 Transaction-level risk36:12 Latency arms race37:28 Stablecoins and CFOs38:13 Risk vectors40:01 Annual planning41:51 Lightning round43:00 Finance software stack43:31 Advice to younger self44:09 Credits
    Show More Show Less
    45 mins
No reviews yet
In the spirit of reconciliation, Audible acknowledges the Traditional Custodians of country throughout Australia and their connections to land, sea and community. We pay our respect to their elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.