Yuki Nakayama
Yuki Nakayama
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MT5 tools that survived the testing — not the marketing.

I'm an independent developer based in Japan, building indicators and Expert Advisors for MetaTrader 5. I approach the market as a systematic researcher, not a marketer.

Every tool here passes the same filter I run on my own strategies before I trust them with real money: large-scale backtests with realistic spread, commission and slippage, and a strict check for look-ahead bias. Most ideas don't survive that filter — and when they don't, I drop them. That's why this catalog is deliberately small, and why a tool being here means it earned its place.

What you can expect:
• No doctored results, no "99% win rate," no black boxes.
• An honest description of what each tool does — and what it doesn't.
• A free version of almost everything, so you can judge the work before spending anything.

Found a bug, or an idea to make a tool better? Tell me — I read every comment and ship updates.
Yuki Nakayama
게재된 포스트 One Decision, Four Rulers: Re-measuring the Window Length of My Gold EA
This is the fifth entry in the incubation diary for my gold breakout EA. The EA places a buy stop at the highest high and a sell stop at the lowest low of the last N closed M15 bars, only during 10:00 to 13:59 UTC, with an initial stop of 0.5 ATR and a trailing exit...
Yuki Nakayama
게재된 포스트 Execution Caliper ユーザーガイド:初期設定・パネルの読み方・全設定項目(無料版・Pro)
Execution Caliper とは Execution Caliper は自動売買ロボットではなく計器です。チャート1枚の上に置いて、あなたの口座がその銘柄でいくら執行コストを課すかを測り、そのコストを、これから走らせようとしている EA のストップ幅で割ります。出てくるのは1つの比率、つまりストップに対するコストの割合です...
Yuki Nakayama
게재된 포스트 Execution Caliper User Guide: Setup, Reading the Panel, and Every Setting (Free and Pro)
What Execution Caliper is Execution Caliper is not a trading robot. It is a meter. It sits on one chart and measures the execution cost your account charges on that symbol, then divides that cost by the stop distance of the EA you are thinking of running...
Yuki Nakayama 출시돈 제품

이것은 무엇인가 Execution Caliper Pro는 자동매매 로봇이 아니라 계측기입니다. 귀하의 계좌가 최대 다섯 심볼에서 체결 비용을 얼마나 부과하는지 동시에 측정하고, 그 비용을 각 심볼에 대해 입력한 스톱 폭으로 나누며, 이어서 귀하 자신의 청산된 거래 내역을 읽어 같은 측정이 이미 체결한 거래에서 어떻게 나오는지 보여줍니다. 주문을 보내지 않고, 포지션을 열지 않으며, 같은 터미널의 다른 EA에 속한 것은 어떤 것도 건드리지 않습니다. 이기게 해준다는 주장도 하지 않습니다. 수익이 늘어난다거나, 더 안전해진다거나, 성적이 좋아진다고 말하지 않습니다. 비싼 수업료를 치르기 전에 귀하의 계좌가 얼마를 가져가는지 알려줄 뿐입니다. 왜 필요한가 이 문단의 수치는 저희 것이 아닙니다. 이는 동일한 제3자 EA를 서로 다른 두 브로커에서 구동하는 두 개의 공개 MQL5 시그널에서 가져온 것으로, 저희가 그 거래 내역 내보내기 파일을 바탕으로 직접 재계산했습니다. 시그널 식별자

Yuki Nakayama
게재된 포스트 Same program, three profit factors: the signal identifiers, the recomputation, and three corrections
When I published the launch post for Execution Caliper on 21 September 2026, its central example was one EA run on three accounts, showing profit factors of 1.08, 1.79 and 2.39...
Yuki Nakayama
게재된 포스트 Execution Caliper is live: a free meter for what your account charges an EA
Today I published a free utility on the Market called Execution Caliper . This post is the record of what it measures, what it deliberately refuses to do, and how it ended up with a different name and a different job from the one I started with...
Yuki Nakayama 출시돈 제품

이것은 무엇인가 Execution Caliper는 자동매매 로봇이 아니라 계측기입니다. 차트 한 장 위에 올려두면 귀하의 계좌가 그 심볼에서 체결 비용을 얼마나 부과하는지 측정하고, 그 비용을 앞으로 돌리려는 EA의 스톱 폭으로 나눕니다. 나오는 것은 하나의 비율, 즉 스톱 대비 비용의 몫입니다. 주문을 보내지 않고, 포지션을 열지 않으며, 같은 터미널의 다른 EA에 속한 것은 어떤 것도 건드리지 않습니다. 이기게 해준다는 주장도 하지 않습니다. 수익이 늘어난다거나, 더 안전해진다거나, 성적이 좋아진다고 말하지 않습니다. 비싼 수업료를 치르기 전에 귀하의 계좌가 얼마를 가져가는지 알려줄 뿐입니다. 왜 필요한가 이 문단의 수치는 저희 것이 아닙니다. 이는 동일한 제3자 EA를 서로 다른 두 브로커에서 구동하는 두 개의 공개 MQL5 시그널에서 가져온 것으로, 저희가 그 거래 내역 내보내기 파일을 바탕으로 직접 재계산했습니다. 시그널 식별자, 재계산 과정, 그리고 저희 자신의 이전

Yuki Nakayama
게재된 포스트 Twenty-Five Fills, None in My Favour: Measuring Entry Slippage Without a Backtest
This is the fourth entry in a public incubation diary for a gold expert advisor that is not for sale and may never be, depending on what the verification says...
Yuki Nakayama
게재된 포스트 Five Percent of the Trades, All of the Profit: Why My Gold EA Has No Take-Profit
This is the third entry in a public incubation diary for a gold Expert Advisor I am building toward a release around December 2026 or January 2027. The rule I set for myself is that everything goes in the diary — the measurements that came out the way I expected, and the ones that did not...
Yuki Nakayama
게재된 포스트 Seven Checks, Two False Passes: Auditing an EA Against Its Own Backtest
This is the second entry in a public incubation log for a gold breakout EA I am not selling yet. The first entry audited five trading days of live forward testing and found that only one of them had produced a valid measurement...
Yuki Nakayama
게재된 포스트 Five Trading Days, One Valid Measurement: Auditing a Live Forward Test
Over the next several months I am going to publish the full incubation record of one Expert Advisor — a session breakout system on gold, M15 — from validation through live forward testing. Not the marketing version. The actual record, including the parts where nothing worked...
Yuki Nakayama
게재된 포스트 The Zone That Vanished: Why Order Blocks Leave Your Chart Without Price Ever Breaking Them
Every few weeks someone asks me a version of the same question: "Your indicator removed a zone from my chart, but price never went through it. Is that a bug?" It is a fair question, and for a long time my answer was too short...
Yuki Nakayama
게재된 포스트 When Yen Crosses Stop Moving Together: Reading the AUD/JPY Fracture Line
The Bank of Japan left its policy rate at 1.0% on 31 July, an 8–1 decision with the dissenter arguing for 1.25%, and warned that underlying inflation is likely to run clearly above target from the second half of its fiscal year...
Yuki Nakayama
게재된 포스트 Zones, Agreement, and Survival: One Workflow from Entry to Risk
This is the fifth post in the order block series. The last one was a before-and-after story about adding a confirmation requirement to naked zone entries, and it ended where most posts about entries end: with a cleaner signal and a smaller trade count...
Yuki Nakayama
게재된 포스트 The Real Yield Flip: Trading Gold Through the 2026 Hike-or-Cut Uncertainty
A trader I know spent most of June convinced that gold had to go up. His reasoning was simple, and on the surface it was not wrong: inflation was finally cooling, the June CPI print came in soft, the annual rate dropped to its lowest level in years...
Yuki Nakayama
게재된 포스트 One Order Block Was Never Enough: A Before/After Look at Adding Confirmation
This is the fourth post in the order block series. The last one was a checklist for auditing any zone indicator, including ours, and it ended with an exercise: pick a chart, fix your rules in advance, and tally what actually happens after every zone touch for two weeks...
Yuki Nakayama
게재된 포스트 The Order Block Skeptic's Checklist: 5 Tests to Run Before You Trust Any Zone
Search "order block indicator" in any trading forum and you will find two crowds talking past each other. One insists order blocks are the closest thing retail trading has to reading institutional footprints...
Yuki Nakayama
게재된 포스트 Order Block Mitigation: When a Zone Is Still Worth Trading
The first post in this series covered a simple routine for the London open: frame the Asian range, mark fresh H1 order blocks, wait for a sweep and a reaction...
Yuki Nakayama
게재된 포스트 How Order Blocks Form, Mitigate, and Die on MT5 (No Repaint Indicator)
Most order block indicators for MT5 have one habit that quietly ruins them: they redraw their zones after the fact. A box that was not on your chart an hour ago suddenly appears exactly where price bounced, and your backtest looks flawless while your live account does not...
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