> For the complete documentation index, see [llms.txt](https://docs.novamp.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.novamp.io/traders/slippage-and-price-impact.md).

# Slippage & Price Impact

Why the amount you receive can differ from the quote — and how to set slippage so trades fill without overpaying.

{% hint style="info" %}
**Price impact** is what your trade does to the price (bigger trade vs. thin liquidity = worse fill). **Slippage tolerance** is how much worse than the quote you'll still accept before the trade reverts. They're related but not the same.
{% endhint %}

## Overview

Every Novamp token trades on a real AMM pool (Uniswap / PancakeSwap on EVM, Pump.fun / PumpSwap on Solana). AMMs price by pool balance, so:

* **Price impact** — the price moves as your order consumes liquidity. Small trades in deep pools barely move it; large trades in thin pools move it a lot.
* **Slippage tolerance** — a guardrail. Novamp computes a **minimum received** from your tolerance; if the real fill would land below it, the transaction reverts instead of filling at a bad price.

## How it works

```mermaid
flowchart LR
  A[Quote: expected output] --> B[Apply slippage tolerance]
  B --> C[Minimum received]
  C --> D{Fill >= minimum?}
  D -->|Yes| E[Trade executes]
  D -->|No| F[Trade reverts — funds safe]
```

Novamp shows both sides of this on every trade:

* The **quote** ("You receive") — expected output at the current price.
* The **minimum received** — the floor after your slippage tolerance.
* On Swap, a **price-impact** figure and a warning when impact is high; on Solana, price impact is shown directly and highlighted at \~5%+.

## How to use it

**Set slippage**

* On [Swap](/traders/swap.md): choose a preset — **0.5% / 1% / 3% / 5%**.
* On Solana panels: **Auto / 0.5% / 1% / 3%**.
* On the EVM token trade panel: set slippage in trade settings (shown as "Slippage X%" beside the quote).

**Rules of thumb**

| Situation                           | Suggested tolerance                      |
| ----------------------------------- | ---------------------------------------- |
| Deep, liquid pair (majors, stables) | 0.5–1%                                   |
| Normal small-cap trade              | 1–3%                                     |
| New / thin / volatile launch        | 3–5%+ (accept worse fills, or size down) |

{% hint style="warning" %}
High slippage is not free protection — it lets your trade fill at a **worse** price, which is exactly what sandwich bots exploit. Prefer sizing down over cranking slippage to 5%+ on thin pools.
{% endhint %}

## Important details

| Term                | Meaning                                                |
| ------------------- | ------------------------------------------------------ |
| Quote / You receive | Expected output at current price                       |
| Minimum received    | Output floor after slippage; below this the tx reverts |
| Price impact        | How much your order moves the pool price               |
| Slippage tolerance  | Max acceptable gap between quote and fill              |
| Auto (Solana)       | Provider picks a tolerance based on route conditions   |

## What happens next?

* **Fill within tolerance** → trade executes near the quote.
* **Market moves past your floor** → the trade reverts; you keep your funds but still pay gas on EVM (a failed/reverted tx). See [⛽ Gas & Network Fees](/traders/gas-and-fees.md).
* Quotes on Swap **auto-refresh** so your slippage is applied to a current price, not a stale one.

## Troubleshooting

| Symptom                              | Likely cause                           | What to do                                              |
| ------------------------------------ | -------------------------------------- | ------------------------------------------------------- |
| Trade keeps reverting                | Slippage too tight for a volatile pool | Raise tolerance a little, or size down                  |
| Received noticeably less than quoted | High price impact on a thin pool       | Reduce trade size; split into smaller trades            |
| "High price impact" warning          | Order large vs. liquidity              | Reconsider size; check pool liquidity on the token page |
| Fills feel front-run                 | Slippage set very high on a thin pair  | Lower slippage, trade smaller                           |

## Continue exploring

* [🔄 Swap](/traders/swap.md)
* [⛽ Gas & Network Fees](/traders/gas-and-fees.md)
* [🆘 Transaction Troubleshooting](/traders/troubleshooting.md)
* [🗂️ Glossary](/resources/glossary.md)


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