Preddy Pro
Trading

Chapter 3 · Trading · Lesson 2 · 4 min

Orderbook

The live order book for one outcome, with depth at a glance, one-click trading and your resting orders.

The Orderbook shows every resting bid and ask for one outcome, live. Use it to see where the liquidity sits and to trade straight from the prices. It shows one market, so link it to a colour group.

What you see

The Orderbook widget in the Ladder layout
Buy sizes on the left, sell sizes on the right, prices down the middle. Good for clicking straight into the book.
  1. 1
    Switch layouts here
  2. 2
    Asks: people selling. The best ask is at the bottom
  3. 3
    Best bid, mid and best ask, always in view
  4. 4
    Bids: people buying. The best bid is at the top
The Orderbook widget in the Split layout
Bids and asks side by side, best prices at the top. Good for seeing deep into both sides without scrolling.
  1. 1
    Best bid, spread and best ask
  2. 2
    Bids, best at the top
  3. 3
    Asks, best at the top
The Orderbook widget in the Column layout
One price per row, with the size and a running total. Good for reading how much sits up to a price.
  1. 1
    Prices: asks above the line, bids below
  2. 2
    Running total from the best price
  3. 3
    Best bid, spread and best ask

Bars show the depth at each price, and big sizes (1,000 shares or more) are bold, so walls stand out. Your own orders sit on their rows as badges showing what's left to fill.

The toolbar changes how numbers read: Σ adds sizes up from the best price, $ shows dollars instead of shares, and 1¢ groups prices into bigger steps when the book is noisy.

Using it

Click a price to fill the Betslip

Out of the box, clicking a price places nothing. It sends that price to the Betslip in the same colour, where you check the order and submit it. It's the safe way to start.

Click Trade

Click Trade turns the book into a one-click trading surface: each click places a GTC limit order at that price, no Betslip in between. Turn it on with Click Trade in the footer and set your size right next to it. Hover a price first and you'll see exactly what will be sent.

The Orderbook with Click Trade on and a buy preview under the pointer
Hover first: the preview is exactly what one click sends.
  1. 1
    Preview: exactly what will be sent
  2. 2
    Buy only: Click Trade is on
  3. 3
    Size: shares per click
  4. 4
    Your orders: click a badge to cancel
  5. 5
    Cancel · N: all orders on this outcome

A click on the other side of the touch fills straight away at the market. Pro asks you to confirm those clicks unless you turn that off.

Need a lot at once? Pick Sweep in the size menu: one click takes everything from the best price through the level you click.

Press Esc to turn Click Trade off.

Moving and cancelling orders

Click your order's badge to cancel it, or drag it to another price to move it. A moved order goes to the back of the queue at its new price.

Pausing the book

When the book moves too fast to hit a level, press Space to freeze it, or hold Shift to freeze it just while you aim. Press X to cancel your last order.

With other widgets

  • A price you click goes to the Betslip in the same colour, with the size up to that level filled in too.
  • The book always follows its colour's market. Pick a market anywhere in that colour and the book switches.

Tips

  • New to the book? Pair it with a Betslip in the same colour and trade through that first. Move to Click Trade once the clicks feel natural.
  • Before using Click Trade on a fast market, set Max $ per click in settings. One slip then can't cost more than you planned.
  • Use Split to see deep into both sides at once, and Ladder when you're clicking near the touch.

Finish reading to complete this lesson

Extras

More toolbar options

ControlWhat it does
◎Recentres on the mid. The book follows the mid until you scroll.
Cancel · NCancels every order you have on this outcome. N is how many.

More ways to manage orders

The Orderbook with your orders as badges and an order bar on each side
Three orders for 30 shares on each side; ▲ ▼ move a side's orders at once.
  1. 1
    Your order badge
  2. 2
    Cancel · N: cancel all
  3. 3
    Order bar with ▲ ▼
  • Hold A while dragging a badge to move all your orders by the same number of ticks.
  • Middle-click a row to cancel everything you have at that price.
  • The order bar sums up your orders per side: ✕ cancels a side (click twice to confirm), ▲ ▼ move the whole side.

Display settings

The Orderbook widget with the small chart open under the book, Bid/Ask view, 1m span
The chart under the book, in Bid/Ask view.
  1. 1
    Chart: Bid/Ask under the book
  2. 2
    Price / Bid/Ask / Spread
  3. 3
    Span: 1m / 5m / All
SettingWhat it does
Price formatShows prices in cents, as odds (Decimal, American, Fractional, Hong Kong, Probability), or both.
LayoutLadder, Split or Column.
Tick sizeThe price step the book groups by: the market's tick, 1, 2 or 5.
Cumulative from the touchRunning size from the best price.
Sizes in dollarsLevel size in dollars.
Empty levelsEvery price at the tick size, even where nobody is quoting.
Wall threshold, shares ≥The size from which a level shows in bold.
Order barYour per-side order summary. Highlight on hover lights up that side's orders in the book.
Show chartA small chart under the book: Price, Bid/Ask or Spread, over 1m, 5m or All.

Click Trade settings

Orderbook settings, Click Trade tab: Confirmations and Moving orders, the Click section starts below
Confirmations and how orders move.
  1. 1
    Confirmations
SettingWhat it does
ConfirmationsWhich actions ask first: crossing clicks, Cancel all, cancelling a side, and sweeps above a dollar amount.
Moving ordersHow far one press moves an order, and whether moves ask to confirm (Never, Crossing or Always).
ModeLeft = buy, right = sell, or Quick buy / Quick sell, where the button cycles off → buy → sell.
Click sizeThe size of each click, in Shares or USD.
DisarmTurns Click Trade off on window blur, after an accepted click, or after a reject.
GuardsMax $ per click, max order notional, max open orders and max deviation from mid. All off until you set them. A guard that blocks a click shows its name on the Click Trade button.

Prefer clicking only? Turn hotkeys off on the Hotkeys tab.