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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.
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
已发布文章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...
43
Yuki Nakayama
已发布文章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...
9
Yuki Nakayama
已发布文章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...
43
Yuki Nakayama
已发布产品
这是什么 Execution Caliper Pro 是一台测量仪器，不是交易机器人。它一次衡量您的账户在最多五个品种上收取多少执行成本，把每一笔成本除以您为该品种填入的止损宽度，再读取您自己的已平仓交易历史，显示同一套测量放在您已经做过的交易上是什么样子。它不发送订单，不开仓，也不触碰终端上属于其他EA的任何东西。它同样不对盈利做出任何声称。我们不说它会让您盈利、更安全或者成绩更好。它只是在您用昂贵的方式弄明白之前，告诉您您的账户收取了多少。 它为什么存在 本段的数字不是我们的。它们来自两个公开的 MQL5 信号，这两个信号在两家不同的经纪商上运行着同一个第三方EA；我们根据它们导出的交易列表自行重新核算。信号标识、重新计算过程，以及对我们自己更早期表格的修正，都写在本站作者的博客里。以两个账户各自的完整历史来看，获利系数分别是 1.79 和 2.40。若截取到两者真正重叠的时间段，两者都变成
Yuki Nakayama
已发布文章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...
51
Yuki Nakayama
已发布文章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...
59
Yuki Nakayama
已发布产品
这是什么 Execution Caliper 是一台测量仪器，不是交易机器人。它挂在一张图表上，测量您的账户在该品种上收取多少执行成本，然后把这笔成本除以您打算运行的那个EA的止损宽度。得到的是一个比率，也就是成本占止损的比例。它不发送订单，不开仓，也不触碰终端上属于其他EA的任何东西。它同样不对盈利做出任何声称。我们不说它会让您盈利、更安全或者成绩更好。它只是在您用昂贵的方式弄明白之前，告诉您您的账户收取了多少。 它为什么存在 本段的数字不是我们的。它们来自两个公开的 MQL5 信号，这两个信号在两家不同的经纪商上运行着同一个第三方EA；我们根据它们导出的交易列表自行重新核算。信号标识、重新计算过程，以及对我们自己更早期表格的修正，都写在本站作者的博客里。以两个账户各自的完整历史来看，获利系数分别是 1.79 和 2.40。若截取到两者真正重叠的时间段，两者都变成
Yuki Nakayama
已发布文章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...
69
Yuki Nakayama
已发布文章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...
136
2
Yuki Nakayama
已发布文章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...
66
Yuki Nakayama
已发布文章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...
129
Yuki Nakayama
已发布文章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...
121
Yuki Nakayama
已发布文章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...
234
Yuki Nakayama
已发布文章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...
93
Yuki Nakayama
已发布文章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...
123
Yuki Nakayama
已发布文章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...
183
Yuki Nakayama
已发布文章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...
116
Yuki Nakayama
已发布文章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...
299
Yuki Nakayama
已发布文章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...
290