The foreign exchange market is the largest financial market in the world.

According to the Bank for International Settlements, average daily trading in the foreign exchange market reached $9.6 trillion in April 2025, up approximately 28% from 2022.

Yet despite this enormous size, not all trades are executed in the same way.

A simple trade to buy a liquid currency for a limited amount is fundamentally different from a transaction worth hundreds of millions, or an options contract requiring complex pricing.

That is why the evolution of today’s currency market is not only about the increase in trading volume, but also about changes in the execution process itself.

From the Phone to the Algorithm

Traditionally, a large portion of currency trading relied on direct communication between the client and the bank to obtain a price and execute the trade.

Today, an increasing share of this activity is electronic.

A trader can obtain prices from multiple sources at the same time, use automated rules to determine when and how a trade should be executed, or rely on algorithms that break a large order into smaller trades and execute them gradually.

This is where one of the key benefits of automation becomes clear:

Reducing the time and manual intervention required for repetitive, simple trades.

Instead of spending time manually executing dozens of small orders, a trader can have the system execute them according to predefined rules, while the team focuses on trades that require greater judgment or negotiation.

Why Not Automate Everything?

Because speed is not the only objective.

Suppose an institution wants to buy a very large amount of a particular currency.

If it sends the entire order to the market at once, participants may notice the increased demand and push the price higher before the trade is completed.

This is known as market impact cost.

In such cases, it may be better to split the trade, use an execution algorithm, or deal directly with a bank that has sufficient liquidity to absorb a large portion of it.

Therefore, best execution does not always mean obtaining the lowest price displayed on the screen at that moment.

Rather, it means achieving the best outcome after taking into account price, liquidity, execution speed, trade size, and the trade’s impact on the market.

Why Has Data Become More Important?

As electronic trading increases, every trade generates data that can be analyzed.

What was the quoted price before execution?
How long did it take to execute the trade?
Did the market move afterward?
Which bank or platform delivered the better result?

This data allows institutions to assess execution quality rather than relying solely on impressions.

After thousands of trades, a company can determine that one type of order achieves better results through automated execution, while other types require direct communication with dealers.

In this way, data becomes a tool for making the execution decision itself.

What About Currency Options?

The more complex the product, the harder it is to turn it into a fully automated process.

A simple spot trade in an active currency pair is easy to price and compare electronically.

By contrast, the value of currency options may depend on a range of factors, such as the exchange rate, term, expected volatility, and the structure of the contract itself.

As a result, simple and repetitive trades can move more easily to electronic execution, while large or bespoke trades may still require a dealer’s expertise and direct negotiation.

In other words, technology does not necessarily eliminate the human role; instead, it redirects it toward more complex tasks.

What Does “Choosing an Execution Method” Mean?

Execution methods can be viewed like modes of transportation.

You would not take a plane to go to a nearby store, nor would you use a small car to transport a huge load across a continent.

The right tool depends on the task.

In the currency market, automated execution may be suitable for a small, repetitive trade, while a large trade may require an algorithm that minimizes its market impact, and direct communication may be better for a complex or illiquid trade.

This is the real transformation taking place in the currency market.

Progress no longer means that electronic execution replaces human execution; rather, traders have more options and need to know when to use each one.

As automation and data continue to expand, the most important skill in currency trading may not be executing the trade itself, but choosing the method that makes execution as efficient as possible, with the lowest possible cost and risk.