Raydium and Solana DeFi glossary

This glossary defines the Raydium and Solana DeFi terms that come up whenever you run a volume bot: how an AMM prices trades, why pool depth sets slippage, what MEV and sandwich attacks are, and what signals like unique holders and volume velocity actually mean. Each entry is written in plain English and kept short, so you can look up a single term or read the whole thing to build a working picture of how trading flow on Raydium is measured and shaped. None of it is financial advice - it is the vocabulary behind the rest of the guides.

The terms

These are the concepts a volume bot touches most, from the AMM math that prices every swap to the aggregator signals that decide whether a pair gets seen. Read top to bottom for the full picture, or jump to a single definition when a guide sends you here.

AMM (Automated Market Maker)

A smart contract that prices trades from a pool of two tokens instead of matching buyers to sellers on an order book. Raydium is an AMM: you swap against the pool, and the contract quotes a price from the current reserves. There is no counterparty to find, which is why any token with a pool can trade at any time.

Constant product formula

The math behind Raydium and most AMMs, written as x times y equals k. The product of the two token reserves stays fixed, so buying one token shrinks its side of the pool and pushes its price up along a curve. This is what makes every swap move the price and pay slippage in proportion to its size.

Liquidity pool

The paired reserves of two tokens that an AMM trades against. On Raydium a pool might pair a project token with SOL. The pool is what a volume bot swaps into and out of, and its size sets how much a trade moves the price.

Pool depth

How much capital sits in a liquidity pool. Deep pools absorb large trades with little price movement; thin pools swing hard on small ones. Depth is the single most important number for sizing swaps, because it determines the slippage every trade pays.

Slippage

The difference between the price you expect and the price you actually get, caused by the pool moving as your trade executes. Depth-aware sizing keeps slippage inside a set band so a volume session spends efficiently instead of burning capital on oversized swaps.

Price impact

The permanent price move a single trade causes by shifting the pool reserves, distinct from transient slippage. A trade that is large relative to pool depth has high price impact and leaves a visible mark on the chart, which is why distributed, right-sized swaps read as cleaner flow.

LP (Liquidity Provider)

Someone who deposits both tokens into a pool and earns a share of the swap fees in return. LPs supply the depth that swaps trade against. A volume bot is not an LP - it trades against the pool rather than funding it.

SOL

The native token of the Solana network, used to pay transaction fees and commonly paired against project tokens in Raydium pools. Volume sessions are funded in SOL, and swaps typically route through a SOL pair.

Jito

A block-building and bundle service on Solana that lets transactions be submitted privately with a tip, bypassing the public mempool. Routing swaps through Jito bundles hides them from front-running bots and improves the chance of clean, in-order execution.

MEV (Maximal Extractable Value)

Value that bots extract by reordering, inserting or front-running transactions in a block. On a public mempool a predictable swap can be exploited for MEV, which both costs the trader and distorts the tape. Private submission through Jito is the standard defense.

Sandwich attack

A specific MEV tactic where a bot places a buy right before your swap and a sell right after, pocketing the price move your trade creates. Sandwiches quietly drain volume budgets, which is why anti-MEV routing matters for any automated Raydium activity.

Bundle

A group of transactions submitted together to be included in the same block in a fixed order, typically through Jito. Bundling gives control over execution order and keeps the transactions out of the public mempool where they could be front-run.

Dexscreener

A popular aggregator that indexes on-chain DEX trades and ranks pairs by volume, activity and other signals. Because Raydium swaps settle on-chain, they appear on Dexscreener within minutes, which is why it is a primary target for visibility.

Dextools

Another widely used DEX aggregator and charting tool that ranks pairs using volume, community votes and a composite token score. It reads the same on-chain flow as Dexscreener but weights it differently, so clean distributed activity tends to help on both.

Unique holders

The count of distinct wallet addresses holding a token. A rising holder count signals a real, distributed market rather than a single actor. Because trackers and traders both discount concentrated activity, growing unique holders is one of the most valuable signals a launch can build.

Unique makers

The number of distinct addresses that have traded a pair in a given window. Like unique holders, this separates genuine participation from a looped script, and it is a signal aggregators weight when ranking pairs.

Volume velocity

The rate at which trading volume is arriving, as opposed to its total. Trackers weight recent windows heavily, so a steady stream of swaps reads as more alive than one large figure dumped and abandoned. Velocity is often the deciding factor in trending.

Buy pressure

The ratio of buys to sells over a window. A net-buying tape with more green candles than red reads as a market people want into. In a volume session it is a dial you set, and keeping it believable matters as much as leaning it toward buys.

Graduation

The point at which a token leaves a launchpad bonding curve and its liquidity migrates to a full AMM pool, commonly on Raydium. After graduation the token trades on the open curve of a real pool, which is where sustained volume and visibility work begins.

Wash trading

Trading with yourself to inflate volume, typically by looping a single wallet. It clusters instantly on-chain, pays maximum slippage on repeated same-direction trades and gets discounted by trackers. Distributed, depth-aware flow is the opposite approach and the reason a proper volume bot exists.

Market maker

In DeFi, a service that places continuous two-sided quotes and manages inventory to keep a token liquid and tight-spread over time. It is a different tool from a volume bot: a market maker manages liquidity and spread, while a volume bot shapes visible trading flow for a window.

Cross-DEX mirroring

Spreading trading activity across more than one venue - for example Raydium alongside Meteora and Orca - so a token shows life on multiple DEXes and registers on more aggregator logic. It makes the market look broader than a single pool.

Meteora

A Solana DEX known for dynamic and concentrated liquidity pools. It is one of the venues a cross-DEX session can mirror activity onto so a token is not visible on Raydium alone.

Orca

A Solana DEX with concentrated-liquidity pools and a widely used interface. Like Meteora, it is a common mirroring target for spreading volume across multiple venues.

Non-custodial

A design where the tool never holds your main private keys or takes control of your primary funds. A non-custodial volume bot works through ephemeral wallets you fund and refunds unused deposit, so custody risk stays minimal and control stays with you.

Refund

The return of any deposited capital that was not spent when a session ends. Instant refunds are a core safety property: you are never handing over more than a session needs, and what is not used comes back.

How to use this glossary

The terms above are not trivia - they are the levers a volume session actually pulls. When a guide talks about sizing swaps to pool depth, it is describing how to keep slippage and price impact small so the tape stays smooth. When it talks about routing through Jito, it is describing how to dodge MEV and sandwich attacks that would otherwise waste your budget. When it talks about unique holders and volume velocity, it is describing the signals that decide whether a Raydium pair gets seen on Dexscreener and Dextools.

If you read only three entries, make them pool depth, slippage and unique holders - together they explain why distributed, depth-aware trading beats crude wash trading every time. From there, the how Raydium AMM works page turns the AMM terms into mechanics, the Dexscreener trending guide turns the aggregator terms into a strategy, and the increase volume on Raydium guide ties them together. When the vocabulary makes sense and you want to see it in motion, open the dashboard.

Frequently asked questions

Why does a Raydium volume bot need its own glossary?

Because AMM trading has its own vocabulary - depth, slippage, price impact, MEV, velocity - and using a volume bot well means understanding what those signals are and why they matter. This glossary keeps the definitions plain and in one place so the rest of the guides make sense.

What is the difference between slippage and price impact?

Slippage is the gap between your expected and actual price during execution as the pool moves. Price impact is the lasting price shift your trade causes by changing the reserves. Sizing swaps to pool depth keeps both small.

Is wash trading the same as running a volume bot?

No. Wash trading loops one wallet and clusters instantly, which trackers discount. A proper volume bot distributes swaps across many independent wallets, sizes them to depth and spaces them naturally, so the flow reads as a market rather than a script.

What does non-custodial actually mean here?

It means the tool never holds your main keys or takes control of your primary funds. You fund ephemeral wallets for a session, the bot trades through them, and unused deposit is refunded. Custody stays with you.

Why do unique holders matter more than raw volume?

Volume from one address is easy to fake and easy to discount. A rising count of distinct holders is what makes volume credible to both aggregators and the humans reading them, which is why distribution beats size.

What is Jito and why route through it?

Jito is a Solana service for submitting transactions privately in bundles with a tip. Routing swaps through it keeps them out of the public mempool, which prevents sandwich attacks and other MEV that would otherwise waste a volume budget.

Vocabulary is the foundation: once depth, slippage, MEV and velocity are clear, the strategy behind a Raydium volume session stops being jargon and starts being obvious. When you are ready to put it to work, the dashboard is a click away.