Tribe Capital data: US customers trading on Coinbase dropped 80% from December 2017 through September 2018, as cryptocurrencies experienced sharp declines
Buy and hodl—that's been the mantra of cryptocurrency investors since a devotee first made the typo in a Bitcoin forum in 2013.
Context & Ripple Effects
Tribe Capital's dataset captures the first full drawdown of the post-2017 retail mania: US customers trading on Coinbase fell 80% between December 2017 and September 2018 as crypto prices collapsed. It matters because it quantified, early, how much of Coinbase's business is a lever on Bitcoin's price cycle rather than a secular growth curve.
That lever has kept working. The same ~80% figure reappears in Coinbase's 2022 stock decline, and by late 2025 the company was reporting Q4 revenue down 22% with transaction revenue off 37% — the 2018 data point is the template for every subsequent cycle.
First-order effects
- Coinbase's core fee income takes the hit directly: with US customer trading down 80% over nine months, the transaction revenue line that funds the exchange shrinks almost one-for-one with retail activity.
- Retail holders shift from active trading to passive holding — the 'hodl' behavior the article describes — which cuts trade frequency even for customers who keep balances on the platform.
Second-order effects
- Rival exchanges face the same volume cliff, so competition shifts from winning share of a growing pie to fighting over a shrinking one — a dynamic later visible when Kaiko measured Gemini's trading falling far faster than Coinbase's (Gemini volumes down ~50% YoY).
- Institutional and product teams at exchanges respond by chasing revenue less tied to spot trading fees, since the Tribe Capital data shows retail flow cannot be relied on across a bear market.
Third-order effects
- If the pattern holds, crypto exchanges are structurally cyclical businesses whose earnings track asset prices, forcing repeated diversification pushes after each drawdown — and making their public-market valuations swing with sentiment, as Coinbase's later quarterly losses and stock declines show.
- A decade of these cycles builds the case for regulators and investors treating exchange revenue quality — how much comes from speculative trading versus other services — as the key diligence question for the sector.
The trend: Crypto exchange economics remain hostage to asset-price cycles, with retail trading volume contracting sharply in every major downturn since 2017 and each recovery resetting the same dependence.