> ## Documentation Index
> Fetch the complete documentation index at: https://docs.supermisson.fun/llms.txt
> Use this file to discover all available pages before exploring further.

# Market Orders

> Instant execution at the current best price. Click, confirm, done.

# Buy now, think later (but please think first)

A market order fills immediately at the best available price on Polymarket's orderbook. No waiting, no price-setting — you see a number, you take it.

This is how most trades happen on Supermission.

<Steps>
  <Step title="Find a market">
    Browse the market grid or search for a topic. Click any market card to open the detail view.
  </Step>

  <Step title="Pick your side">
    Hit **YES** or **NO**. The button highlights and the order panel appears on the right.
  </Step>

  <Step title="Enter your amount">
    Type how much USDC you want to spend. The panel instantly shows how many shares you'll receive and the effective price per share.
  </Step>

  <Step title="Confirm the trade">
    Click **Confirm Trade**. The order hits Polymarket's CLOB as a FAK (Fill-And-Kill) order — it fills what it can immediately and cancels any remainder.
  </Step>
</Steps>

## What is FAK execution?

FAK stands for **Fill-And-Kill**. Your order grabs all available liquidity at the current price, fills as many shares as possible, and kills the rest. No partial orders sitting on the book.

<Info>
  If liquidity is thin, you might not get your full size filled. The confirmation screen shows expected fill before you commit.
</Info>

## When to use market orders

* You have conviction and want in **now**
* The market is liquid (tight spread, deep book)
* You're trading a fast-moving event where seconds matter

<Warning>
  On thin markets, market orders can slip. If the spread is wide (YES at 52c, NO at 55c), consider a [limit order](/trading/limit-orders) instead. You'll get a better price and the patience usually pays.
</Warning>

## The shortcut: Oracle agent

Don't want to click through screens? Tell Oracle:

> "Buy `$25` on YES for the Fed rate cut market"

Same FAK execution, zero clicking. Oracle confirms the details before executing.

<Tip>
  Market orders are your bread and butter. But the best traders use them for entries and [limit orders](/trading/limit-orders) for exits. Something to think about.
</Tip>