Most traders learn to read a chart before they learn to read the thing the chart is made of. A candle is a summary. Order flow is the raw feed underneath it: every bid, every offer, every print, in the order it happened. Once you can read it, a lot of price action stops looking random.
This is a plain-english walk through what order flow is and how to use it. No jargon that we do not explain, and no promises that it predicts the future. It does not. It tells you what is happening now, which is more useful than most people expect.
What order flow actually is
A stock or a contract has two prices at any instant: the highest price a buyer will pay (the bid) and the lowest price a seller will accept (the ask). The gap between them is the spread.
When someone is impatient enough to buy at the ask or sell at the bid, a trade prints. Order flow is the running tape of those prints plus the resting orders waiting on both sides. That is the whole idea. Everything else is a way of looking at it.
Price is where the last trade happened. Order flow is the pressure that decides where the next one happens.
The three windows you are reading
You do not stare at a raw feed of numbers. You read it through three views, and each one answers a different question.
Time and sales
Often called "the tape." A line per trade: price, size, and whether it hit the bid or lifted the ask. It answers what just happened. A run of large prints lifting the ask tells you buyers are paying up. The same size hitting the bid tells you the opposite.
The order book
Also called Level II. This is the stack of resting orders above and below the current price. It answers what is waiting. A wall of size sitting on the bid can act like a floor, at least until it gets pulled or eaten.
| Side | Price | Resting size |
|---|---|---|
| Ask | 24.14 | 1,200 |
| Ask | 24.13 | 800 |
| Bid | 24.12 | 3,400 |
| Bid | 24.11 | 2,900 |
The ladder, or DOM
The depth-of-market ladder is the order book turned vertical, with a column to click and trade. It answers where do I act. Futures traders live here because it puts resting size, the tape, and your working orders on a single price axis.
How to actually use it
Order flow is context, not a signal on its own. A few honest uses:
- Confirm a level. Price approaches a support line you already drew. Watch whether buyers actually step in on the tape, or whether the bid keeps getting hit and the floor is fake.
- Judge conviction. A breakout on heavy prints lifting the ask is a different animal from a breakout on thin, hesitant volume.
- Time an entry. Once you have a reason to be in a trade, the tape helps you get in a few cents better than a blind market order.
Common mistakes
- Trading the tape alone. Fast prints are hypnotic. Without a level or a plan, you are just reacting to noise.
- Trusting the book too much. Resting size can be pulled in an instant. A wall is intent, not a guarantee.
- Ignoring the venue. On equities, a lot of volume prints off-exchange and shows up late. What you see is real, but it is not everything.
Where The Terminal fits
The point of order flow is that the tape, the book, and the ladder describe the same moment from three angles. In most setups they live in three separate tools that never share a symbol or a clock.
In The Terminal they sit on one fan-out, linked to the same symbol group as your charts and news. Click a name in the scanner and the tape, the depth ladder, and the chart all move together. That is the whole reason we built it: the market is one thing, and the software should treat it that way.