Welcome to Fully Baked, our Sunday newsletter where we take one of our Half Baked ideas and validate it faster than Mythos broke into the NSA's classified systems 🔓

In today's edition:

  • 💡 An idea riding the hottest market in fintech

  • 🔬 We validated this idea - here's what we found

  • 🚀 The go-to-market playbook for this product

  • 🤑 What do the unit economics look like?

  • ⚔️ How the competitive landscape looks

  • ❓ Our verdict: is this a go or no-go idea

Let's goooo 🚀

🔮 Copy Trader for Prediction Markets

Propheteering

Available Domain: Copymarket.ai

👤 Source: Edition #483 - the one where we asked "who's the Nancy Pelosi of prediction markets, and why can't we copy their trades?"

Problem:

  • Prediction markets have gone from niche crypto experiment to genuine asset class in about 12 months. Combined monthly volume on Kalshi and Polymarket rocketed from under $5 billion in September 2025 to roughly $24 billion by April 2026, more than Americans wagered through legal sportsbooks.

  • And because Polymarket lives on-chain, every position the top wallets hold is public. Retail can literally see the seven-figure traders winning in real time, so why not build a way for people to copy the best traders on these platforms? Here's the idea.

Solution:

  • A social copy-trading layer that lets you auto-mirror the top predictors on Polymarket (and eventually Kalshi) in near-real time.

  • Connect your wallet, pick a vetted "Leader" with transparent on-chain P&L, accuracy and risk metrics, and the mirror engine replicates their positions proportionally in your account the moment they fill. Pause or unfollow anytime.

  • A live dashboard shows open positions, realised P&L and Leader activity, with risk gates (category filters, max position size, daily loss caps) so a single bad call can't nuke your account.

🧑‍💻 Prototyping: Google AI Studio demo | Remix this build

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🔬 Our Validation Process

🌐 Desktop Research

  • eToro built a 40M+ user, $18.5B-asset business with copy-trading as its headline feature, and the social-trading market is forecast to hit $3.51 billion by 2029. Layer that proven behaviour onto a fast-growing market and on paper it looks like a layup.

  • There are dozens of "how to find the best Polymarket wallets to copy" guides, and leaderboards now rank 500K+ wallets by P&L and ROI. People absolutely want to copy the smart money.

📋 Survey (184 responses via Prolific, screened for active prediction-market and crypto traders, ~$420 total)

  • People want in on copy trading. 71% said they'd copy a top prediction-market trader's positions if they could, so the core appetite is clearly there.

  • But they won't pay for it. 64% would happily use a product like this, yet roughly half of them wouldn't pay a cent for it. Free expectations are already baked in. Noted.

🚀 How to Acquire Customers

👥 Early Users

  • Crypto Twitter and Discord: Your users already live on Twitter and in Polymarket Discords. Verified-P&L screenshots and "I copied this whale for 30 days" clips are natural fuel. The catch: every competitor is fishing the exact same pond.

  • Leaderboard SEO: Own searches like "best Polymarket traders to copy" and "[wallet] Polymarket". The catch, again: Polycopy, Shadower and friends already rank for precisely those terms.

📈 Scaling Acquisition

  • Organic Content: run a format-testing engine on X and short-form video (copy-challenge threads, "I followed the #1 wallet for 30 days" breakdowns, live market-reaction clips) and let the data surface the two or three formats that actually drive signups.

  • Paid plus UGC: put paid spend behind the variants that already won organically, then hand those winning concepts to UGC creators to produce at volume, with the CaC caveat kept.

🤑 The Economics of This Business

🏷️ Pricing

  • Free Tier: Leaderboard, follow feed and manual copy. This is exactly what the incumbents already give away, so charging for it is a non-starter. It's your top of funnel, not your revenue.

  • Performance Fees: Make auto-copy free to switch on and take 10-15% of realised profit instead, with a high-water mark so you only ever charge on new gains. "We only make money when you do" is the line here.

  • Pay the Leaders: Rev-share roughly a third of that fee back to the traders being copied, or they won't opt in to having strangers erode their edge. It's eToro's Popular Investor model, which pays its stars up to 1.5% of assets-under-copy.

🧮 Unit Economics

  • Target CAC: realistically $30-80+. Organic content key to bring your blended CAC down.

  • LTV: likely some structural churn in this business. Copy-trading retention is low by nature, because the moment a strategy stops working people leave. You need to constantly be able to surface the top-performing traders as a business to prevent this churn.

⚔️ The Competitive Landscape

🏷️ Primary Competitors

  • Poly Syncer, PolyZig and Shadower: These are full non-custodial auto-mirror engines, latency-optimised fills, per-category risk caps. Very similar to this idea if we’re honest here.

  • Polycopy and PolySmartWallet: The intelligence layer, scoring 500K+ and 8,000+ wallets with backtests and a proprietary "Copy Score". They own the "who should you actually copy" question.

  • Polymarket's native leaderboard + open-source bots are competitors here too. There are lots of competition in this space, an important finding.

No-Go

The top of this idea is all green lights. Prediction markets are the hottest thing in fintech right now, and our survey backs up what we suspected: people genuinely want to copy the smart money.

It's everything underneath that stops us. Many competent tools already do this, the monetisation is a grind against free expectations, and worst of all you'd be building on rented land, because Polymarket or Kalshi could ship native copy-trading tomorrow and wipe you out overnight.

Genuinely cool product, but this is one we'd happily watch someone else take a swing at.

👋 That’s All Folks

Before you go, just a few public service announcements:

  • Have an idea you want feedback on? DM me to discuss it or book in for Office Hours here.

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See you soon,

Darragh, John, George, Connell & Dan | The Half Baked Team

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