What are delayed market data feeds – and when are they sufficient? Not every investor needs real-time data; for many applications, delayed feeds are perfectly adequate.
Here you will find the differences from real-time data, the pros and cons of both options and when switching is worth it.
Delayed data feeds do not deliver market prices in real time but with a time lag. While professional traders see current prices, users of delayed feeds are looking at market movements that have already passed. Typical delays:
Most exchanges charge licence fees for the distribution of real-time data. To offer market data more cheaply or for free, many providers make delayed data available.
This lets investors follow markets without paying for professional data supply.
The actual delay depends on the exchange – values may vary slightly depending on the data provider.
| Exchange | Typical delay |
|---|---|
| Deutsche Börse | 15 Minuten |
| NYSE | 15 Minuten |
| NASDAQ | 15 Minuten |
| Euronext | 15 Minuten |
| Regional exchanges | 15 to 20 minutes |
The most important difference lies in timeliness.
| Feature | Delayed data | Real-time data |
|---|---|---|
| Timeliness | 1–20 min old | current |
| Suitable for day trading | No | Yes |
| Market monitoring | restricted | optimal |
| Alert functions | restricted | Yes |
| Automation | limited | optimal |
| Cost | low | higher |
Many long-term decisions are based on daily, weekly or monthly charts – where a delay of minutes often makes no difference.
Here, a few seconds can decide success or failure.
“Decisions are based on outdated information – the shorter the strategy’s time frame, the greater the disadvantage.”
For many applications, delayed feeds are a cost-effective and sufficient solution.
Trend analysis, support and resistance, moving averages and long-term market monitoring. For short-term setups, the informational value decreases.
More important than second-by-second prices are key figures, annual reports, market trends and fundamentals.
Here, data quality, history and completeness count – usually based on historical data.
Day traders need current market information. Even a few minutes of delay means signals are no longer valid, breakouts are missed and stops are placed incorrectly – the market structure simply looks different.
Many providers make delayed data available free of charge – no real-time licences are required, costs are lower and the offering is attractive for beginners. Quality and scope can, however, vary considerably.
Many market participants underestimate the effects of the delay – which often leads to wrong decisions.
The right choice depends on the intended use.
Delayed feeds show market prices with a time lag of typically 15 minutes. You are therefore not seeing the current market, but the past.
Exchanges charge fees for real-time prices. Delayed data is cheaper or free and often sufficient for long-term investors and market monitoring.
For long-term investors, market overview and research. For active trading, day trading or scalping, however, they are unsuitable.
Professional software labels the data type. If in doubt: if the displayed price does not match a real-time provider, the data is probably delayed.
For long-term investors, educational purposes and basic market analysis, delayed feeds can be perfectly sufficient – cheap and easily accessible.
However, anyone who trades actively, monitors markets in real time or uses automated strategies will quickly hit their limits. The choice should always depend on your own trading style.