Fundraising for Marketplaces: Metrics Investors Want
Marketplace investors read your numbers differently from SaaS or retail investors. They want to know whether buyers and sellers actually find each other, whether they come back, and how much of each transaction you keep. This guide walks through the marketplace metrics investors want, how to calculate each one cleanly, and how to package them into a metrics page you can share this fall.
Key takeaways
- The core marketplace metrics investors ask about are gross merchandise value (GMV), take rate, liquidity (often measured as fill rate) and repeat rate.
- GMV shows scale, but net revenue, which is GMV multiplied by your take rate, is what actually pays the bills.
- Liquidity and repeat rate tell investors whether the marketplace works, which matters more than raw growth at an early stage.
- Write down a definition for every metric and keep it the same across your deck, your data pack and your calls.
- Show cohorts and trends, not single snapshots, and be upfront about any number that is still noisy.
If you run a marketplace, you already know the job is harder than it looks. You are building two businesses at once: one that attracts supply, like sellers, hosts, freelancers or drivers, and one that attracts demand, like the people who buy, book or hire. Investors know this too, so their questions zero in on whether those two sides are meeting often enough, and profitably enough, to grow without you pushing every transaction by hand.
September is a natural time to tidy up your numbers. Many founders start conversations after the summer slowdown, and a clean metrics story lets you spend your meetings on strategy instead of arguing about definitions. Let's go through what to measure, how to show it and the traps to avoid.
A quick note: this is general information about preparing for a raise, not legal, tax or investment advice. Talk to your lawyer and accountant about anything specific to your company.
Why marketplace metrics are different
A software company sells one product to one type of customer. A marketplace earns money by helping other people transact. That changes what "growth" means. If ten thousand sellers sign up but buyers cannot find what they want, the marketplace is not working, no matter how good the sign-up chart looks.
So investors usually look at three layers:
- Scale: how much value flows through the platform (GMV) and how much of it you keep (take rate and net revenue).
- Health: whether demand finds supply quickly and reliably (liquidity, fill rate, time to match).
- Durability: whether buyers and sellers come back without expensive nudging (repeat rate and cohort behavior).
The rest of this guide covers each layer in turn.
The four core metrics, defined
Write these definitions into a shared doc before you calculate anything. Most metric disputes in diligence are really definition disputes.
Gross merchandise value (GMV)
GMV is the total value of transactions completed on your marketplace in a period, before you take your cut. For a goods marketplace, that is the total order value. For a services marketplace, it is the total booked and completed job value.
Decide early whether your GMV includes shipping, taxes, tips, refunds and cancellations. A common, investor-friendly choice is to report GMV on completed transactions, net of refunds and cancellations, and to say clearly what is included. If you want to show gross booked value as well, label it as a separate line.
Take rate
Take rate is the share of GMV you keep as revenue. The basic formula is:
Take rate = marketplace revenue divided by GMV
Your revenue might include commissions, buyer service fees, seller subscription fees, listing fees, payment fees or advertising. Show the blended take rate and, if you can, break it down by revenue stream. Investors want to know which parts are durable and which depend on a promotion or a single large customer.
Liquidity and fill rate
Liquidity is the likelihood that a listing sells or a request gets matched. There is no single formula, so pick the version that fits your model and explain it:
- Fill rate: the share of buyer requests or jobs that get filled. For example, completed bookings divided by booking requests.
- Sell-through rate: the share of listings that sell within a set window, such as 30 days.
- Time to match: how long it takes for a request to be accepted or a listing to sell.
Liquidity is often measured per market, per category or per city, because a marketplace can be very liquid in one place and empty in another. Showing that breakdown is a strength, not a weakness.
Repeat rate
Repeat rate measures how many buyers, and ideally sellers, transact again. A simple version is the share of buyers in a cohort who make a second transaction within a set period, such as 90 days. You can also show the share of GMV coming from returning buyers.
Common mistake
Calling GMV "revenue." It is the single fastest way to lose credibility with a marketplace investor. Always show GMV and net revenue as separate lines, and make sure the take rate connects the two.
Supporting metrics that strengthen your story
The four core metrics carry most of the weight, but investors will ask follow-up questions. Having these ready shows you understand your own business.
Supply-side metrics
- Active sellers or providers: how many completed at least one transaction in the period, not just how many signed up.
- Seller concentration: the share of GMV from your top 10 or top 1% of sellers. Heavy concentration can be a risk.
- Seller retention: whether providers stay active month after month.
- Supply utilization: for services, how much of a provider's available time gets booked.
Demand-side metrics
- Active buyers: buyers who transacted in the period.
- Orders per buyer: how often an active buyer transacts.
- Average order value: GMV divided by number of orders.
- Buyer acquisition cost: what it costs to win a buyer who actually transacts, by channel.
Economics and quality metrics
- Contribution margin per order: net revenue minus variable costs such as payment processing, support, insurance and incentives.
- Incentive spend as a share of GMV: discounts, credits and subsidies you pay to drive transactions.
- Disputes, refunds and cancellations: trust issues show up here first.
- Organic share: the share of new buyers who arrive without paid acquisition.
Pro tip
If you subsidize transactions with discounts or seller bonuses, show GMV both with and without subsidized orders. Investors will try to work it out anyway, and offering it first builds trust.
How to build your marketplace metrics page
A metrics page is a one or two page summary you can share before or after a meeting. It sits alongside your deck and your data room, and it saves everyone time.
- Agree on definitions. Write one sentence per metric, including what is excluded. Put this glossary at the bottom of the page.
- Pull monthly data for at least the last 12 months, if you have it. Younger companies can show weekly data for a shorter period. Trends matter more than a single month.
- Reconcile with your books. Net revenue on your metrics page should match the revenue in your accounts, or you should be able to explain the difference in one line.
- Build buyer cohorts. Group buyers by the month of their first transaction and track what share transact again in later months, and how much they spend.
- Break liquidity down by segment. Show your strongest and weakest cities or categories, and explain what you learned from the strong ones.
- Add a short narrative. Three to five sentences on what the numbers mean and what you will do with the money.
- Have someone outside the team check it. An advisor, an accountant or a friendly founder can spot confusing labels before an investor does.
Marketplace metrics template
Copy this table into a spreadsheet and add one row per month. The figures below are made-up examples for illustration only.
| Month | GMV (example) | Net revenue (example) | Take rate | Fill rate | 90-day repeat rate | Active sellers |
|---|---|---|---|---|---|---|
| Month 1 | $80,000 | $9,600 | 12% | 61% | 24% | 140 |
| Month 2 | $92,000 | $11,040 | 12% | 64% | 26% | 152 |
| Month 3 | $105,000 | $13,650 | 13% | 66% | 27% | 161 |
Net revenue divided by GMV gives the take rate, so a reader can check the math in seconds.
Example
Imagine Lena runs a marketplace that connects pet owners with local dog walkers. Her early deck showed only total sign-ups. Before her fall raise, she rebuilt the story around fill rate by neighborhood, the share of owners who booked again within 90 days, and walker utilization. Two neighborhoods had much higher fill rates, so she explained what she did there (recruiting walkers first, then marketing to owners) and how she planned to repeat it. Investors spent the meeting discussing expansion, not questioning her numbers. (Lena and her figures are made up for illustration.)
Presenting the numbers in meetings and diligence
Good metrics can still land badly if they are presented in a confusing way. A few habits help a lot.
Lead with the story, then the proof
Open with one or two sentences: what your marketplace does, where it works best and why. Then show the metrics that prove it. For example, "In our first three cities, most requests are filled within a day and about a quarter of buyers come back within 90 days." Then show the chart.
Use cohorts to answer the growth question
Investors worry that growth is being bought with ads or discounts. Cohort charts answer this directly. If newer buyer cohorts behave as well as or better than older ones, it suggests the product is improving. If they are getting worse, say so and explain what you are testing.
Be honest about seasonality
Many marketplaces are seasonal. Moving, gifting, travel, tutoring and home services all have busy and quiet months. With the holiday season ahead, a goods marketplace might be heading into its strongest weeks, while some service marketplaces slow down. Show year-over-year comparisons where you can, and point out seasonal patterns before an investor has to ask.
Common mistake
Showing a cumulative GMV chart as your main growth chart. Cumulative charts always go up and to the right, so investors tend to discount them. Show monthly or weekly GMV instead, and let the real trend speak for itself.
Stage matters: what to emphasize when
What investors care about shifts as you grow. Use this as a rough guide, not a rule.
- Pre-seed: evidence that buyers and sellers want this. Early fill rates, early repeat behavior, waitlists, and how you solved the cold start in one small market.
- Seed: liquidity in a defined niche or city, a clear take rate, early cohorts and a believable plan for the next markets.
- Series A and beyond: GMV growth, net revenue, contribution margin per order, cohort retention, acquisition efficiency and proof that new markets reach liquidity faster than the first ones.
At every stage, depth beats breadth. A few metrics that you understand deeply are worth more than a crowded dashboard you cannot explain.
Your marketplace metrics action plan
- Write one-sentence definitions for GMV, take rate, liquidity and repeat rate
- Decide what GMV includes and excludes, and apply it everywhere
- Pull at least 12 months of monthly data, or the longest history you have
- Reconcile net revenue with your accounting records
- Build buyer cohorts by month of first transaction
- Break fill rate down by city, category or segment
- Check seller concentration and incentive spend
- Draft a one-page metrics summary with a glossary
- Ask an outside reader to review it before you share it
Frequently asked questions
Is a higher take rate always better?
Not necessarily. A take rate that is too high can push buyers and sellers to transact off the platform. Investors want a take rate that reflects the value you add, and evidence that users accept it. Explain why your rate makes sense for your category and how it might change over time.
What if my GMV is small but my repeat rate is strong?
Lead with the repeat rate and cohort data. At an early stage, strong repeat behavior in a small market can be more convincing than large but unrepeated GMV, because it suggests the marketplace genuinely works for its users.
How should I measure liquidity if I am a goods marketplace?
Sell-through rate within a set window, such as 30 or 60 days, is a common choice. You can also show the share of searches that lead to a purchase. Pick one main measure, define it clearly and stick with it.
Do I need audited numbers to raise?
Early-stage investors usually do not require audited accounts, but they expect your numbers to match your books and bank records. Later rounds may involve more formal financial diligence. Ask your accountant what level of review makes sense for your stage.
Related reading
The bottom line
Fundraising for a marketplace comes down to proving three things: value flows through your platform, you keep a fair share of it, and buyers and sellers find each other often enough to come back. GMV, take rate, liquidity and repeat rate tell that story, as long as you define them clearly and back them with cohorts.
Spend a few focused hours this month building a clean metrics page. It will sharpen your own thinking, shorten your investor meetings and make diligence far less stressful when the right investor says yes.
