Bonding Curves Explained: How Pump.fun Prices Memes

Quick Take: Every pump.fun token runs on the same pricing math — get the bonding curve, and you can tell a fair shot from a rug in progress.

Forget presales and VC allocations. On pump.fun, a token's price isn't set by a team or an order book — it's set by a bonding curve, a fixed math formula baked into the contract. Buy in, and the price ticks up along the curve. Sell, and it slides back down. There's no floor propped up by a market maker and no ceiling set by a whitepaper — just supply, demand, and the shape of the curve itself.

Here's the mechanic that matters: pump.fun curves are steep early and get steeper as more SOL flows in. The first buyers into a fresh launch get tokens at the cheapest point on the curve, which is exactly why degens race to ape into brand-new tickers within seconds of deployment. As the pool fills, each additional buy costs more than the last. Once the curve collects enough SOL, the token "graduates" — its liquidity migrates to Raydium, LP gets burned or locked, and the coin starts trading like a normal DEX pair instead of a curve.

The catch is that a bonding curve has no depth beyond itself. Early on, a handful of large sells can crater a token's price just as fast as buys pumped it, because there's no resting liquidity absorbing the move. That's the real risk in the pre-graduation window — not just that a coin might not moon, but that a single wallet dumping can wipe out an entire curve in one transaction.

The practical read: track a token's progress toward graduation, not just its price. A curve filling fast with distributed buyers looks very different from one pumped by two or three wallets. The former has a shot at surviving Raydium. The latter is usually a chart you'll see crash the moment those wallets cash out.

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