Real-Time Market Data
Providers, pricing, API and data feeds compared. Make better trading decisions based on precise, up-to-date data – instead of the past.
Why market data decides success or failure
You can have the best strategy in the world – backtests, optimised setups, perfect risk management. And still lose. The reason is simple: your decisions are based on wrong or delayed data.
Just seconds of delay mean that
- entries happen too late
- stops are placed incorrectly
- signals are no longer valid
What exactly is market data?
Market data is all the information generated by trading on financial markets. It includes:
- Prices (bid, ask, last)
- Volume
- Order book data (Level 1 & Level 2)
- Tick data
- Time series and historical data
It is generated directly by exchanges and transmitted to trading platforms via so-called data feeds.
What types of market data are there?
Real-time data
- instant price updates
- essential for active trading
- foundation for automated systems
Delayed data
- 1–15 minutes old
- good for analysis
- unsuitable for trading
End-of-day data
- daily closing prices
- for long-term strategies
Real-time vs. delayed market data
| Feature | Real-time | Delayed |
|---|---|---|
| Timeliness | instant | 1–15 minutes |
| Suitable for trading | Yes | No |
| Signal quality | high | distorted |
| Use case | Trading | Analysis |
“Whoever trades on delayed data trades in the past.”
The reason
- markets move in milliseconds
- liquidity changes instantly
- order book signals are only valid in real time
Without this data
- strategies lose their accuracy
- slippage occurs
- the hit rate drops
What does a market data feed cost?
The cost depends on several factors – from the exchange licence and the type of data to how it is used.
Exchange licence
- individual exchanges charge fees
- e.g. NYSE, NASDAQ, Eurex
Data type
- Level 1 (Top of Book)
- Level 2 (order book)
Usage
- private vs. professional
- API vs. Software
| Data type | Price |
|---|---|
| Basic data | free to low-cost |
| Real-time Level 1 | 10–50 € |
| Real-time Level 2 | 50–150 € |
Using market data via API
More and more traders access market data directly via APIs.
This enables
- automated trading
- algorithmic strategies
- Backtesting
- custom dashboards
Typical API functions
- retrieving tick data
- Order book data
- Historical data
- real-time streaming
Data feeds for trading software
Choosing the right data feed depends on your software – whether proprietary analysis systems or web APIs.
What to look for in market data
Not all data is equal. Four criteria determine quality.
Speed
Real-time doesn’t always mean “equally fast”.
Data quality
- stable connections
- no outages
- complete data
Coverage
- Stocks
- Futures
- Forex
- Indices
Latency
Critical for active trading.
Typical market data mistakes
Many traders make the same mistakes – and they cost money directly.
- using delayed data
- the wrong data feed
- no API for automation
- switching to real-time too late
Why many traders cut costs in the wrong place
Many invest in tools, strategies and courses – but skimp on the data. That’s one of the biggest mistakes in trading. Your results depend directly on the quality of your data.
Make better trading decisions now
See the market without delay. Make informed decisions based on real data.