Financial Instruments Business Operator Kanto Finance Bureau Director (Kinsho) No. 1960 / Membership Association Investment Trusts Association, Japan Membership No. 012-02323 Go to GogoJungle Home
icon List
Ojun
08/18/2026 05:00
Release： 08/18/2026 05:00
Update： 08/24/2026 01:50
Ojun
Investment style : Contrarian Trade
Investment career : More than 10 years
Investment amount : 50 million - 100 million JPY
Nice to meet you. This is Mr. Ojun from BuilderOU (Builder King). I am active in binary options (BO) and FX under the principle of "Honest verification creates a reproducible future." When I first started investing, like many others, I approached the market with the feeling, "I want to earn quickly." However, the results were far from smooth. Being swayed by information, trusting products, losing funds, and trading driven by emotions. I experienced many detours. In the end, the answer I arrived at was, "Make judgments by verification, not by intuition." A very simple mindset. Nowadays, - Developing tools through programming - Long-term backtesting - Real-trade verification - Research into money management - Accumulation and analysis of verification data We pursue creating a trading environment with reproducibility on a daily basis. Thus far, through word of mouth, I have shared about investing with approximately 300 people. And this time, for the first time, I decided to start disseminating information on the internet. There is only one reason. Around me, there are many people who, like my past self, believed in online information, products, and influencers' words, and lost valuable funds. That is why I want to spread a culture of verification, not the goal of selling. In this Investment Navigator, - Verification results - Behind-the-scenes of development - Logic that was adopted or rejected - Feelings from real trades - The process of product development will be communicated, including not only good results but also failures. If my articles can become a trigger to protect your precious funds, there is nothing more to wish for. Thank you very much for your support. BuilderOU Honest verification creates a reproducible future.
icon
Series
Honest verification creates a reproducible future (BuilderOU Story)
I, who kept losing, was able to change my life through "verification" The reason I started investing was not to grow my money. I wanted to repay my parents' debt. That single-minded motive is why I started investing. But reality was not sweet. I tried methods said to be "winning", bought indicators, joined schools, and if I lost, I looked for a new method. It was a repeating cycle. What I realized then was: The ability to verify is many times more important than a method that can win. In this series, I will write without hiding based on my real experiences about: - the reason I started investing - repeated failures - encounters with backtesting - why I began to create indicators - creating reproducible rules - verification methods - the behind-the-scenes of product development - actual verification results It may not be suitable for those looking for an "easy way to win." However, If you are serious about winning consistently for a long time, I aim to provide at least one takeaway you can apply. Please stay with me until the end.
Article cover image

BuilderOU STORY【Chapter 1】Episode 15｜The verification never ends. Therefore, it keeps evolving.

BuilderOU STORY｜Episode 15

Verification never ends.
Therefore, it continues to evolve.

It's not finished after one creation.
Verify, improve, and confirm again.
That repetition builds trust.

Hello.
From BuilderOU (Builder King),
Mr. Ojun.

In Episode 14,

the theme was

“An era where honest verification can be done by anyone.”

I wrote about not wanting verification itself to be the work of only those with special knowledge.

Choose a period.

Choose a currency.

Choose conditions.

And, see the results.

If you create a system where anyone can check by the same method,

you can judge with numbers, not impressions or biases.

However,

here I noticed one more big thing.

Just because you built a verifiable system,

it doesn't mean it's complete there.

The market changes.

The users change.

The environment changes.

Then,

the verification system itself must continue to change.

What BuilderOU needed was

not a finished product.

A system that continually evolveswas what we needed.

1. The moment you think it is “finished,”
is the starting line for the next step

When you are writing a program,

the moment it runs, you’re really happy.

Errors disappear.

Buttons work.

Signs appear.

Backtest numbers appear.

Results appear in Excel.

“I did it.”

I think so.

But,

once you actually start using it, something always becomes visible.

I want this condition as well.

This display is hard to understand.

I want to separate this time frame.

I want to view HIGH and LOW separately.

I want to exclude conditions with few signals.

I want to compare differences by currency.

Fixing one thing reveals another improvement.

In the past, I aimed for

“to complete it.”

But,

as I kept building, my thinking changed.

Completion is not the end.

At that point, it became usable.

Then actually use it,

verify,

find problems,

and fix them again.

That cycle is what I came to believe is real development.

Completion is not the goal.

It is only that it has become usable.
Real development starts from there.


2. Even if the numbers look good,
don’t get complacent

In backtests, good numbers appear.

Win rate is high.

PF is also good.

Trading count is high.

Seeing that, you can’t help but feel hopeful.

“This might work.”

I’ve thought that many times as well.

However,

good numbers and being usable in the future are different things.

There might have been a period where it performed well.

It might have suited only one currency.

It might have been biased toward certain time frames.

If market conditions change,

the same conditions might yield different results.

Therefore,

I stopped judging by a single result.

Change the period.

Change the currency.

Change the time frame.

Change the hour of the day.

Change the market.

Split TREND and RANGE.

Change the conditions slightly and see how much the results change.

Rather than one high win rate,

it’s important that the system remains stable even when conditions change.

That became more important to me.

3. Quality control is not just about
“fixing defects.”

undefined