The language of DEXes,
in plain English.

An airdrop is a token given out for free, frequently to reward early users, testers or points-program participants. Many of today's leading DEX tokens launched this way, and 'points' campaigns signal a likely future airdrop.

The dark side: fake airdrops. A surprise token in your wallet may be bait — interacting with it or its site can trigger a wallet drainer. Never approve or trade an unsolicited token.

An automated market maker replaces the order book with a liquidity pool and a math formula. The ratio of the two tokens in the pool sets the price, and every swap shifts that ratio. Uniswap pioneered the model.

It means there's always a price and instant settlement, with liquidity supplied by ordinary users rather than professional market makers. The cost is price impact on large trades and impermanent loss for the people supplying the pool.

APR (annual percentage rate) is the raw yearly rate without compounding; APY (annual percentage yield) assumes you reinvest, so it's higher for the same underlying rate. Protocols often advertise the bigger APY.

Both can be misleading in DeFi: headline figures may rely on volatile token emissions or assume constant prices and continuous compounding. Read what's actually being promised before trusting the number.

A blockchain is a public database that thousands of independent computers agree on, recording transactions in linked blocks that cannot be rewritten. Ethereum, Solana, BNB Chain and others each form a separate ledger with its own rules, fees and tokens.

The network you trade on decides almost everything practical: which tokens exist there, how much gas costs, and how fast a swap settles. The same DEX brand can behave very differently across chains.

A bridge transfers value between separate blockchains — locking or burning a token on one side and releasing or minting an equivalent on the other. You bridge to get assets onto the chain where you want to trade.

Bridges are one of DeFi's biggest attack surfaces: some of the largest hacks (Ronin, Wormhole, Nomad) were bridge exploits. Prefer well-audited, battle-tested bridges and move in small test amounts first.

Bridge risk stems from how bridges work: they custody large pools of locked assets in intricate contracts spanning two chains, making them a prime target. A single flaw can drain hundreds of millions.

Mitigations: use only established bridges with strong audit and incident history, avoid holding bridged 'IOU' tokens longer than needed, and test with a small amount before moving size.

A centralized exchange is the familiar model: a company takes custody of your deposits, runs an internal order book, and lets you trade through an account. It is fast and beginner-friendly, and offers fiat on-ramps and customer support.

The cost is trust. Your coins sit on the company's books, you must pass KYC, and an exchange failure or freeze can put your funds out of reach. 'Not your keys, not your coins' is the contrast a DEX is built to answer.

Collateral is what secures a position or loan. In DeFi lending you must post more value than you borrow — over-collateralization — because there's no credit check; the surplus protects the lender if prices fall.

If collateral value drops past a threshold, it gets liquidated to repay the debt. The same logic backs leverage on perp DEXes, where your margin is the collateral.

Concentrated liquidity, introduced by Uniswap v3, lets an LP place liquidity only within a price band instead of across the whole curve. Inside the range the capital earns much more fee per dollar; outside it, the position stops earning and sits fully in one token.

It boosts efficiency dramatically but demands active management: as the price drifts out of range, the LP must rebalance or accept idle capital and sharper impermanent loss.

x · y = k is the constant-product rule behind most AMMs. The pool holds quantity x of one token and y of another; their product k is held fixed by every swap. Buy some of x and you must add enough y to keep k unchanged — which is why each unit you buy costs more than the last.

The formula guarantees the pool never fully empties and always quotes a price, but it's the source of price impact. Variants (stableswap, concentrated liquidity) reshape the curve for specific asset types.

A wallet doesn't hold your coins — those live on the blockchain. It holds the private key that proves ownership and lets you authorize moves. Connecting a wallet is how you log in to a DEX.

Wallets range from convenient hot (software, always online) to highly secure cold (hardware, offline). Many users keep a small hot wallet for daily swaps and a hardware wallet for savings.

A DAO runs a protocol through token-weighted voting: holders propose and decide on changes, and approved decisions can execute on-chain via the treasury and contracts. It's how many DEXes make themselves credibly community-owned.

In practice governance ranges from vibrant to apathetic, and large holders carry outsized weight. Still, a functioning DAO is what lets a protocol claim it isn't controlled by any single party.

Dollar-cost averaging spreads a purchase over many smaller buys at set intervals, so your average price reflects the trend rather than a single lucky or unlucky moment. It trades the chance of a perfect entry for lower variance.

Several DEXes automate it: you set the token, amount and cadence, and a contract executes each buy. It also reduces price impact by breaking one big order into many small ones.

DeFi is the umbrella term for financial applications built on public blockchains: exchanges, lending markets, stablecoins, derivatives and yield products, all running as composable smart contracts.

Its defining traits are openness (no gatekeeper), composability (protocols plug into each other like Lego), and transparency (the code and the balances are on-chain). A DEX is usually a person's first DeFi tool.

A depeg is a pegged token straying from its target — a stablecoin trading at $0.97, or a staked-asset wrapper drifting from its underlying. Causes range from reserve doubts to liquidity crunches to outright collapse (as with UST in 2022).

Even a temporary depeg can be dangerous: it can trigger liquidations on positions that assumed parity and drain stableswap pools toward the weak asset. Diversifying across reputable stablecoins reduces exposure.

A decentralized exchange is a marketplace for crypto that lives entirely in smart contracts on a blockchain. There is no company holding your coins: you connect a wallet, the contract executes your trade, and the assets move directly between you and a liquidity pool or a counterparty.

Because it is non-custodial and permissionless, anyone with a wallet can use a DEX — no account, no KYC, no approval. The trade-off is responsibility: you sign every transaction yourself, mistakes are final, and there is no support desk to reverse them.

A DEX aggregator doesn't hold its own liquidity — it searches across all the venues on a chain and builds the cheapest route for your swap, sometimes splitting one trade over multiple pools to cut price impact.

For anything beyond a tiny swap it usually beats trading on a single DEX directly. Jupiter is the dominant aggregator on Solana; 1inch and others serve EVM chains.

DYOR captures the self-custody reality: there's no broker, regulator or support desk to catch your mistakes, so the due diligence is yours. Check the team, the contract, the liquidity, the audits, and the token distribution before committing.

It pairs with the irreversible mindset: assume every transaction is final, verify before you sign, and never invest on hype or a stranger's tip alone.

ERC-20 is the technical standard nearly all fungible tokens on Ethereum and EVM chains implement. Because they share the same functions (transfer, approve, balance), any wallet or DEX can support a new token instantly.

It's why a swap needs an approve step — the standard's allowance system. Solana's equivalent is the SPL token standard.

A fake airdrop is a worthless token dropped into your wallet to lure you to a phishing site to 'claim' or sell it. The act of approving or interacting is the trap.

Treat any token you didn't acquire as hostile: don't visit its site, don't approve it, don't try to sell it. Hide it and move on — engaging is the only way it can hurt you.

The funding rate is the mechanism that stops a perpetual drifting from spot. When the perp trades above spot, longs pay shorts; when below, shorts pay longs — nudging traders to push the price back in line.

It's typically charged every few hours. A persistently positive rate is a real holding cost for longs (and income for shorts), and signals crowded positioning.

Gas is what you pay the network — not the DEX — to include and execute your transaction. It's priced in the chain's native coin and scales with how busy the network is and how much computation your action needs.

On Ethereum mainnet gas can spike to dollars during congestion; on layer-2s and chains like Solana it's typically cents or less. Crucially, a failed transaction still consumes gas.

Every transaction's gas is paid in the network's native coin: ETH on Ethereum, BNB on BNB Chain, SOL on Solana. You need a small balance of it just to act — including to send or swap your other tokens.

A classic beginner trap is holding tokens on a chain with zero native coin and being unable to move them. Always keep a little gas token on each chain you use.

A governance token lets holders vote on a protocol's future: fee levels, treasury spending, new features. Many DEXes (UNI, CRV, AERO and others) are steered by their token holders through a DAO.

Beyond voting, these tokens can carry economic rights — fee shares, or the power to direct liquidity incentives via vote-escrow models. Their value tracks both governance influence and any cash flows attached.

A honeypot token's contract is rigged so ordinary holders can buy but never sell, while the creator quietly exits. The chart looks like it only goes up — because no one else can get out.

Token-safety scanners and a tiny test sell before buying size help spot them. As always, unaudited contracts from anonymous teams deserve deep suspicion.

Impermanent loss is the gap between what an LP's position is worth and what the same tokens would be worth if held in a wallet. As the price ratio drifts, the AMM rebalances the pool — selling the rising asset and buying the falling one — leaving the LP with less of the winner.

It's 'impermanent' because it only crystallizes if you withdraw while prices are diverged; if they return to the original ratio it vanishes. Fees earned can offset it, which is why stable or correlated pairs (less divergence) are gentler for LPs.

KYC is the identity verification regulated custodians must perform: name, document, sometimes a selfie. It ties an account to a real person for anti-money-laundering rules.

Pure DEXes are non-custodial and permissionless, so they generally have no KYC — you trade straight from a wallet. Some hybrid or licensed venues add optional or jurisdictional checks.

A layer-2 handles transactions off the congested base layer and posts compressed proofs back to it, inheriting the main chain's security while charging a fraction of the gas. Arbitrum, Base and Optimism are leading Ethereum L2s.

For DEX users, moving to an L2 is the simplest way to pay cents instead of dollars per swap — though you bridge assets over first, and each L2 has its own liquidity.

DeFi lending protocols let suppliers earn interest and borrowers take loans against collateral, all via smart contracts and with no credit check. Because there's no identity, loans are over-collateralized: you lock more than you borrow.

If your collateral's value drops past the safety threshold, it's liquidated to repay the loan. Borrowing to stay liquid without selling is a core use — and a fast way to get liquidated in a downturn.

Leverage lets a small amount of margin control a much larger position: 10× leverage means a 1% move in the asset is a 10% move on your money. It amplifies profit and loss equally.

The danger is liquidation. The higher the leverage, the smaller the adverse move that wipes out your margin — extreme leverage can be liquidated by ordinary volatility. It is the fastest way for beginners to lose funds.

A limit order sets the price you want and waits for the market to reach it, rather than filling now like a market swap. It's how you buy a dip or sell a target without watching charts.

Order-book DEXes support them natively; many AMM front-ends now offer limit orders and DCA (recurring buys) through helper contracts that execute when conditions are met.

Liquidation happens when a leveraged position's losses eat into the maintenance margin. The protocol automatically closes it to protect the system, and you lose the margin — sometimes plus a liquidation penalty.

Your liquidation price is the level at which this triggers. Higher leverage moves it closer to entry, so a small move can end the trade. Knowing your liquidation price before opening is non-negotiable.

Liquidity is the depth of a market: how easily you can trade size without moving the price. A deep pool absorbs a large swap with little price impact; a shallow one lurches.

On a DEX it's supplied by liquidity providers depositing token pairs. 'Insufficient liquidity' errors and ugly quotes are both symptoms of a pool too thin for your trade — check depth before trading unfamiliar tokens.

Liquidity mining is a protocol bootstrapping liquidity by paying providers in its native token, sweetening the base fee income to attract deposits. Headline APRs can look large but are partly inflationary emissions.

The extra yield comes with extra risk: the reward token can fall in value, and chasing emissions ('mercenary liquidity') tends to leave when incentives dry up. Always separate fee yield from token-emission yield.

A liquidity pool is the reservoir an AMM trades against — usually two tokens deposited in balance. Swappers trade with the pool, not each other, and the pool's ratio sets the price.

Anyone can become a liquidity provider by adding both tokens, earning a share of every swap fee in return — while taking on impermanent loss if the prices diverge.

A liquidity provider supplies the two tokens a pool needs and, in return, earns a proportional share of the fees every swap pays. The deposit is represented by an LP token that tracks the position and can be redeemed.

It is not free yield. If the two tokens' prices move apart, the LP can end up worse off than simply holding them — that shortfall is impermanent loss, the central risk to weigh against the fees earned.

A maker places an order that sits on the book, providing liquidity others can trade against. A taker hits an existing order, removing liquidity. Exchanges typically reward makers with lower (sometimes negative) fees and charge takers more.

On an AMM there's no maker/taker split for swaps — every swap is effectively a taker against the pool — but the concept governs fees on order-book venues and perp DEXes.

Margin is the capital backing a leveraged trade. Initial margin is what you need to open the position; maintenance margin is the minimum you must keep to hold it. Drop below maintenance and the position is force-closed.

Isolated margin risks only the collateral assigned to one position; cross margin shares your whole balance across positions — more capital-efficient, but one bad trade can drain the lot.

MEV is the value that can be captured by whoever decides the order of transactions in a block. Because pending trades are public in the mempool, bots can front-run (jump ahead of) or sandwich a trade to skim profit at the trader's expense.

Mitigations exist: private transaction relays, MEV-aware routing, and tighter slippage settings all reduce exposure. Some DEXes and aggregators route orders specifically to minimize the MEV you leak.

Minimum received is the floor on your swap output. The DEX takes your quote, subtracts your slippage tolerance, and refuses to settle for less than the resulting amount. It is the number to actually check before confirming.

If the displayed minimum looks far below the quote, your tolerance is set too high. Tightening it raises the floor — at the cost of more frequent reverts on volatile pairs.

The network fee is the cost of having the blockchain process your transaction — the same thing as gas. It's separate from the DEX's pool fee, which pays liquidity providers.

When comparing the true cost of a swap, add both: network fee (to validators) plus pool fee (to LPs), plus any price impact.

Non-custodial means the keys to your assets never leave your wallet. A DEX never takes possession of your coins; it only executes a trade you sign. This removes counterparty risk — no exchange can lose, freeze or abscond with funds it never held.

The flip side is total personal responsibility. Lose your seed phrase and no one can restore access; approve a malicious contract and no one can claw the funds back. Self-custody is freedom and liability in the same breath.

A nonce is a sequential number attached to every transaction from an address, ensuring they process in order and can't be replayed. Transaction 5 won't confirm until transaction 4 has.

That's why one stuck pending transaction (too low a gas fee) freezes the rest: you fix it by resubmitting the same nonce with a higher fee to speed it up, or a zero-value transfer to cancel it.

On-chain describes activity that is written to the blockchain — a swap, a transfer, a contract call. It is public, verifiable by anyone, and once confirmed it cannot be edited or undone.

Some venues keep parts of the process (like order matching) off-chain for speed and only settle the result on-chain. The further on-chain a system is, the more transparent and censorship-resistant — and often the slower and costlier.

Open interest counts every open perpetual or futures position, not the volume traded. Rising OI with rising price suggests new money backing a move; rising OI with crowded funding can signal a market primed for a squeeze.

It's a liquidity and risk indicator: deep OI means a market can absorb size, but extreme one-sided OI plus high funding often precedes sharp liquidation cascades.

An oracle brings external data — usually asset prices — on-chain so contracts can act on it. Perp DEXes use oracles to mark positions and trigger liquidations; lending markets use them to value collateral.

A manipulated or laggy oracle can cause wrongful liquidations or be exploited to drain a protocol, so robust, decentralized price feeds are a core safety component.

An order book ranks every resting buy and sell order by price. A trade executes when a buyer and seller meet — either a maker who posts an order and waits, or a taker who fills an existing one.

It gives precise pricing and limit orders but needs active market makers to stay liquid. Several derivatives DEXes run order books (often matched off-chain, settled on-chain) instead of AMM pools.

A perpetual is a derivative that mimics holding an asset with leverage but never expires. Instead of settling on a date, it stays tethered to the spot price through a funding rate exchanged between longs and shorts.

Perp DEXes are the highest-volume corner of on-chain trading — and the riskiest for beginners. Leverage cuts both ways, and a modest adverse move can trigger liquidation.

Phishing is the number-one cause of crypto losses. Attackers clone a DEX's site, buy lookalike search ads, or DM 'support', then prompt you to connect and sign a malicious approval that empties your wallet.

Defenses: bookmark official URLs, never click sponsored search results for DeFi apps, scrutinize what each signature actually authorizes, and treat any unsolicited 'support' or giveaway as hostile.

The pool fee is the DEX's own charge on a trade — often 0.01%–1% depending on the pool — and it goes to the liquidity providers as their reward for supplying capital.

It's distinct from gas, which goes to the network's validators. Your true cost of a swap is roughly pool fee + gas + price impact. Stable pairs use tiny fees; volatile or exotic pairs charge more.

Price impact is the effect your trade has on the price, distinct from slippage (which is market movement). In an AMM, buying a token removes it from the pool and makes the remaining units more expensive, so a large order gets a progressively worse average rate.

Thin liquidity magnifies it. Splitting a big trade, using an aggregator to route across pools, or simply choosing a deeper market all reduce price impact.

A private key is the secret that signs transactions and proves you own an address. Control of the key is control of the funds — which is the whole meaning of 'not your keys, not your coins'.

Your wallet manages keys for you and backs them up via the seed phrase. A hardware wallet keeps the key offline so it never touches an internet-connected device, the strongest everyday protection.

A transaction reverts when a condition it set can't be met — slippage exceeded, insufficient liquidity, an expired deadline. The chain rolls the whole thing back as if it never happened, so no tokens move.

The catch on networks like Ethereum: the work was still done by validators, so the gas is not refunded. Repeated reverts from a too-tight slippage setting can quietly cost real money.

To revoke is to withdraw a standing approval. Because allowances don't expire on their own, old permissions to dead or risky contracts pile up as a silent attack surface.

Revocation tools let you review every active approval and cancel the ones you don't need. It's basic wallet hygiene — especially after using a new or unaudited app.

A rollup batches many transactions off-chain and submits a single compact proof to the base layer. Optimistic rollups assume validity and allow a challenge window; zero-knowledge (zk) rollups post a cryptographic proof of correctness up front.

Rollups are how Ethereum scales cheaply without giving up its security. Several order-book perp DEXes run on their own zk-rollups for speed.

A rug pull is an exit scam: a team launches a token, attracts buyers and liquidity, then yanks the pooled liquidity or sells their large allocation — collapsing the price to zero.

Warning signs include anonymous teams, unlocked or team-heavy token supply, unaudited contracts, and liquidity that isn't locked. If the creators can remove the liquidity, they might.

A sandwich attack wraps your trade between two of the attacker's: a buy that front-runs you (raising your price) and a sell that back-runs you (taking profit as the price settles). You fill at a worse rate; the bot keeps the spread.

It feeds on loose slippage tolerance — the higher you set it, the more a bot can extract before your trade reverts. Tight, sensible tolerance and MEV-protected routing are the practical defenses.

A seed phrase is the human-readable master backup of your wallet. From it, every private key and address is derived, so it can restore your wallet on any device — and grant total control to anyone who learns it.

Rules without exception: write it on paper (never a photo, cloud note, or text field), never type it into a website, and know that no legitimate support will ever ask for it. Lose it and there is no recovery; leak it and the funds are gone.

Slippage is the difference between the expected price and the filled price. Between seeing a quote and the trade settling, other trades hit the same pool or the market shifts, so the rate moves — sometimes for you, often against you.

You control your exposure with a slippage tolerance: the worst price you'll accept before the trade reverts. Liquid pairs need only a fraction of a percent; thin or volatile tokens need more.

Your slippage tolerance is a safety limit. If the price moves beyond it before your swap settles, the transaction reverts rather than filling at a bad rate. It sets the gap between the quote and the minimum received shown in your wallet.

Set it too low and normal market movement makes trades fail (still costing gas on Ethereum). Set it too high and you authorize a much worse price — and invite a sandwich attack. Tune it only as high as the pair's volatility genuinely requires.

A smart contract is a program deployed to a blockchain that runs deterministically: given the same input it always produces the same result, with no operator able to intervene. A DEX is a set of smart contracts that hold liquidity and settle trades.

Their strength — unstoppable, transparent execution — is also their risk. A bug or exploit in the code can be drained instantly and irreversibly, which is why audits and a contract's track record matter.

An audit is a security firm's review of smart-contract code to find bugs and exploits before attackers do. Multiple audits from reputable firms, plus a public bug-bounty, are a meaningful trust signal.

But an audit is a snapshot, not a warranty: audited protocols have still been exploited via overlooked logic, upgrades, or oracle and economic attacks. Treat it as one input, alongside track record and value at risk.

Smart-contract risk is the danger that the code itself fails — a flaw, a flawed upgrade, or an economic exploit — and funds are lost with no recourse. It's the price of trustless, unstoppable execution.

You can't eliminate it, only manage it: prefer battle-tested protocols with time in production, several audits and large value secured without incident, and don't concentrate funds in new, unproven contracts.

SPL (Solana Program Library) is the token standard on Solana, filling the same role ERC-20 does on Ethereum. Solana DEXes like Jupiter and Raydium trade SPL tokens.

Account models differ — Solana uses token accounts that may need a tiny rent deposit — but for a trader the experience is the same: connect, approve where needed, swap.

The spread is the distance between the highest price a buyer will pay (the bid) and the lowest a seller will accept (the ask). Crossing it is a real cost of trading: you buy at the ask and sell at the bid.

Deep, busy markets have razor-thin spreads; illiquid or fast-moving ones widen sharply. On AMMs the equivalent cost shows up as price impact rather than a quoted bid/ask.

A stablecoin aims to stay pegged to a reference value, almost always the US dollar. USDC and USDT are backed by off-chain reserves; DAI is backed by on-chain crypto collateral. They're the unit most pairs quote against.

'Stable' is a goal, not a guarantee. Reserves, redemption mechanics and market panic all matter — and pegs can depeg under stress.

Stableswap is a specialized AMM formula, popularized by Curve, for tokens that should hold a near-constant ratio. It flattens the pricing curve around parity so large stablecoin swaps incur minimal slippage, then steepens at the edges to protect the pool if one asset depegs.

For correlated assets it also means gentler impermanent loss, which is why stable and pegged-asset liquidity concentrates in these pools.

Staking commits tokens to a job — securing a proof-of-stake chain, or backing a protocol — and pays a reward for doing so. Native staking (e.g. ETH, SOL) is among the more conservative yields in crypto.

Watch for lock-up periods, unbonding delays, and slashing on some networks. 'Liquid staking' issues a tradeable receipt token so your staked capital isn't frozen.

A swap is the core action on a spot DEX: you exchange one token for another in one transaction. The DEX quotes a rate from a liquidity pool (or routes across several), you confirm, and the tokens trade hands on-chain.

Unlike an order book trade, a pool swap fills instantly against available liquidity — but a large swap can move the pool's price against you (price impact), and the final amount can differ slightly from the quote (slippage).

Before a DEX can swap an ERC-20 token, you must approve it — sign a transaction granting the contract an allowance to spend that token. That's why a first-time swap often needs two confirmations: approve, then swap.

Approvals persist. An unlimited approval is convenient but leaves a standing permission a malicious or exploited contract could abuse, so prefer limited approvals and revoke ones you no longer use.

Token due diligence is the routine that separates a real project from a trap: is the team known, the contract verified and audited, the liquidity locked, the supply fairly distributed, and the token actually sellable?

A few minutes with a block explorer and a token-safety scanner filters out most honeypots and rugs. If you can't answer the basic questions, that's your answer.

Total Value Locked sums the assets sitting in a protocol's smart contracts — liquidity in pools, collateral in lending markets, margin on a perp DEX. It's the headline number used to rank DeFi protocols by scale.

Useful but blunt: TVL can be inflated by double-counting, token-price swings, or mercenary liquidity chasing incentives. Read it alongside trading volume, which shows whether that capital is actually being used.

Vote-escrow tokenomics, pioneered by Curve and refined into ve(3,3) by Solidly/Aerodrome, reward users for locking the native token. Lockers gain voting power to steer where emissions flow and collect a share of trading fees and bribes.

The aim is to bind incentives to people committed for the long term rather than short-term farmers. It makes governance valuable and liquidity stickier, at the cost of complexity and lock-up illiquidity.

A wallet drainer is the payload behind most phishing: a crafted transaction or signature request that, when approved, grants the attacker permission to sweep your tokens and NFTs. Modern drainer kits are sold as a service.

The defense is the signature screen itself — read it. Be wary of 'set approval for all', blind signatures, and any prompt you didn't initiate. A hardware wallet and a separate burner for risky sites limit the blast radius.

Wallet hygiene is a routine, not a product. Keep savings on a hardware wallet you rarely connect; use a small burner wallet for minting, new apps and risky sites; and periodically review and revoke stale token approvals.

Separating funds by risk means a single bad signature can only cost what's in the wallet that signed it — turning a potential catastrophe into a minor loss.

A wrapped token is a stand-in that mirrors another asset's value in a compatible format. WETH wraps native ETH into an ERC-20 so it behaves like any other token in contracts; bridged assets are wrapped representations of a coin from another chain.

Wrapping is routine and safe with reputable wrappers, but a wrapped token is only as trustworthy as whatever backs it — a key consideration for bridged assets.

Yield farming is the active pursuit of return across DeFi: providing liquidity, staking LP tokens for bonus emissions, lending, or stacking strategies. Returns can be high but are rarely free.

The risks compound — smart-contract risk, impermanent loss, falling reward-token prices, and 'mercenary' yields that evaporate. Always decompose an APY into sustainable fee yield versus inflationary token emissions.