Forex EA (Expert Advisor) specifically refers to automated trading systems that run on MT4/5 terminals. EA can automatically monitor the market and execute orders 24 hours a day, effectively avoiding the impact of time, physical strength, emotions and other factors on manual trading. For more details, please see the Appendix at the end of the article. 

I created Seagull EA in early 2021 trading NZDCAD only. The key logic is to follow the major trend and/or the divergence of higher timeframes and look to entry on the lower time frames.  If the market is still moving forward, Seagull EA will look to add some limited positions in the same direction.  (To see Seagull Algorithmic System in detail)

From 2002 to now, NZDCAD trades in a broad 0.6154 to 0.9926 range. From February 2009 to  November 2016, NZDCAD was in a strong uptrend. After 2016, the range is more tight and shows  strong properties of mean reversion. The pair can well hedge the risk of USD. 

Chart 1 NZD/CAD Monthly Chart 

1. Seagull EA can work on both fixed lot or automated lot sizes according to the balance.  No news filter is involved, due to it can not be backtested. As well as, not all news would generate the opposite moving of the market to the EA.

 

Chart 2 Tickdata Backtest of Seagull EA (Fixed 0.01 Lot per trade) 

Chart 3 Tickdata Backtest of Seagull EA (Auto Lot Sizes)

2. In the fixed lot Tickdata backtest, the Expected payoff is 6.0 pips, the spread in the backtest is  3.0 pips. There is total 9.0 pips’ tolerance in the trading cost, ideally it can work on most of the  Brokers.  


Chart 4 Expected Payoff in the Fixed Lot Tickdata Backtest

3. The Tickdata backtest is from 2006 due to no more data being available before that.  Seagull EA runs pretty well from 2009 to 2016, when NZDCAD in a strong uptrend.  Please see Chart 1, Chart 2, Chart 3. 

4. Seagull EA is not a night scalper, the orders are almost averaged within 24 hours.


Chart5 Trading Hours of Seagull EA 

5. We adjusted the timing of the Tickdata, the backtest result is almost the same. 


Chart 6 Tickdata Backtest of Seagull EA from 1979

6. No over-optimization in Seagull EA: although it was created in 2021, the track record of the live  account is solid to now.  

Chart 7 Seagull EA on Live Account from 2021 to Now

Conclusion 

1. Seagull EA has had compelling performance in the Tickdata backtest from 2006 and live trading from  2021 to now.  

2. Assuming that NZDCAD remains range-bound without a clear range break out in the coming years,  we have every reason to believe Seagull EA can at least maintain the current performance. 

Appendix 

Forex EA (Expert Advisor) specifically refers to automated trading systems that run on MT4/5 terminals. In general,  EA is based on proven manual trading methods and experience, built with various technical indicators and coded in MQL language. EA can automatically monitor the market and execute orders 24 hours a day, effectively avoiding the impact of time, physical strength, emotions and other factors on manual trading. EA is one of the most important trading tools for both professional and retail traders. 

In addition, through rigorous and scientific backtesting, we can not only test whether the key logic of the EA is feasible, but also have a reasonable expectation of the risk and reward of trading performance in the future. 

However, MT4/5 EA is not omnipotent. the MQL language is similar to the C language, the function is relatively simple. Some complex and/or advanced trading logic cannot be expressed well. Then we need to use Java Script and other languages in eSignal, Reuters Eikon, CQG or other professional platforms to build the trading system. 

The series of articles "Commercial EA Review by LinoCapital" aims to provide readers with some principled guidance in selecting and backtesting an EA through our knowledge and experience. Welcome to all kinds of feedback and discussion. 

We hope all the traders succeed. Good Luck!

 


Editors’ Picks

EUR/USD stays below 1.1850 as Fed policy signals weigh on sentiment

EUR/USD stays below 1.1850 as Fed policy signals weigh on sentiment

EUR/USD edges modestly higher after opening with a downside gap, trading near 1.1840 during Monday’s Asian session. However, the pair remains vulnerable to further downside as the US Dollar finds support following President Donald Trump’s nomination of Kevin Warsh as the next Federal Reserve Chair.

GBP/USD eyes more upside, with Golden Cross in play

GBP/USD eyes more upside, with Golden Cross in play

Pound Sterling hits four-year highs above 1.3850 on relentless US Dollar selling. GBP/USD appears bullish, positioning for the BoE verdict and US Nonfarm Payrolls. Technically, a Golden Cross on the daily chart suggests more upside for GBP/USD.

USD/JPY stays firm around 155.00 after BoJ's Summary of Opinions

USD/JPY stays firm around 155.00 after BoJ's Summary of Opinions

USD/JPY is sticking to gains at around 155.00 in Asian trading on Monday, with the upside capped by the Bank of Japan's (BoJ) Summary of Opinions, which reinforced the BoJ's gradual tightening narrative and lifted the Japanese Yen. A pause in the US Dollar recovery also keeps buyers in check. 


Editors’ Picks

AUD/USD: Bounce fades near 0.6970 after China's PMI

AUD/USD: Bounce fades near 0.6970 after China's PMI

AUD/USD fades its recovery to near 0.6970 in Asian trading on Monday, despite the in-line with estimates Chinese RatingDog Manufacturing PMI data. Traders remain wary following the previous week's sell-off, while heading into the RBA policy decision due on Tuesday. 

Breaking: Bitcoin slips below $75,000 as selling pressure accelerates

Breaking: Bitcoin slips below $75,000 as selling pressure accelerates

Bitcoin (BTC) price falls below the $75,000 mark on Monday, having corrected nearly 11% in the previous week and reaching level not seen in nearly 10 months. Market momentum has clearly turned bearish, with technical indicators pointing to further downside toward the next key support at $70,000.

USD/JPY stays firm around 155.00 after BoJ's Summary of Opinions

USD/JPY stays firm around 155.00 after BoJ's Summary of Opinions

USD/JPY is sticking to gains at around 155.00 in Asian trading on Monday, with the upside capped by the Bank of Japan's (BoJ) Summary of Opinions, which reinforced the BoJ's gradual tightening narrative and lifted the Japanese Yen. A pause in the US Dollar recovery also keeps buyers in check. 

Gold: Will it defend 21-day SMA on a daily closing basis?

Gold: Will it defend 21-day SMA on a daily closing basis?

Gold halts its correction as sellers take a breather, with the NFP week kicking in. The US Dollar fades its recovery stint as markets weigh a Fed under Warsh. Geopolitical tensions seem to ease. Technically, RSI flirts with midline on the daily chart; Gold is at a critical crossroads.

Global central banks hold steady as EMs signal easing ahead

Global central banks hold steady as EMs signal easing ahead

Central banks across both G10 and emerging markets met this week, with most opting to keep policy rates unchanged. Canada, Sweden, Brazil and Chile all held rates steady. Beyond central bank decisions, the Eurozone's solid Q4 GDP growth bolstered the case for the ECB to keep policy rates unchanged next week.

RECOMMENDED LESSONS

5 Forex News Events You Need To Know

In the fast moving world of currency markets where huge moves can seemingly come from nowhere, it is extremely important for new traders to learn about the various economic indicators and forex news events and releases that shape the markets. Indeed, quickly getting a handle on which data to look out for, what it means, and how to trade it can see new traders quickly become far more profitable and sets up the road to long term success.

Top 10 Chart Patterns Every Trader Should Know

Chart patterns are one of the most effective trading tools for a trader. They are pure price-action, and form on the basis of underlying buying and selling pressure. Chart patterns have a proven track-record, and traders use them to identify continuation or reversal signals, to open positions and identify price targets.

7 Ways to Avoid Forex Scams

The forex industry is recently seeing more and more scams. Here are 7 ways to avoid losing your money in such scams: Forex scams are becoming frequent. Michael Greenberg reports on luxurious expenses, including a submarine bought from the money taken from forex traders. Here’s another report of a forex fraud. So, how can we avoid falling in such forex scams?

What Are the 10 Fatal Mistakes Traders Make

Trading is exciting. Trading is hard. Trading is extremely hard. Some say that it takes more than 10,000 hours to master. Others believe that trading is the way to quick riches. They might be both wrong. What is important to know that no matter how experienced you are, mistakes will be part of the trading process.

Strategy

Money Management

Psychology

Best Brokers of 2025