Kimi | Japan FX Bot Lab
AI FX Bot Lab: Real Trading Experiments
Can AI really trade forex? AI FX Bot Lab is a real-time experiment from Japan, where I build and test AI-assisted FX trading bots using MT5, Python, machine learning, and local LLM tools. I share live results, failures, risk lessons, and bot improvements from rule-based, AI-driven, and ML + LLM hybrid systems. Not financial advice. fxaibotlab.substack.com
Author
Kimi | Japan FX Bot Lab
Category
Podcast website
Latest episode
Jul 11, 2026
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Episodes
[AI Trading Log] Why a Win Rate Over 60% Isn’t Enough: The Heavy “Cost of Retreat” Shown in July 9-10 Tests 11.07.2026 1:35
I am currently running four MT5 automated trading bots (GateGrid AI, BoundSniper, LLMBridgeTrader, and MLScore GF-T4) simultaneously to verify their real-world behavior and performance. I have compiled the operational results for July 9 and 10. The harsh reality revealed by these two days of testing is that “no matter how high the win rate is, a single costly exit (stop loss) can destroy the portf...
Nine Wins Could Not Beat Seven Losses: The Payoff Ratio Dragged the Day Down 08.07.2026 1:30
The four-bot portfolio ended the day at -620 yen realized, with no open positions left at the report cutoff. The headline record was 9 wins and 7 losses, so the day was not simply a wipeout. That is what makes it a little more annoying. More wins than losses, yet still a red result. The total gross profit was +961 yen, while gross loss reached -1,581 yen. The payoff ratio came out to 0.47, and tha...
One Win, Ten Losses: The Exit Problem Was No Longer Subtle 07.07.2026 9:46
Today was not a day where the numbers needed much interpretation. Across the four bots, the closed trades came out to 1 win and 10 losses, with realized P/L at -1,976 yen. MLScore GF-T4 GB also left one GBPJPY short open at -109 yen, so the equity impact was -2,085 yen. That is not a huge amount in absolute scale, but the shape of it was uncomfortable. The only winning closed trade came from LLMBr...
A 93.3% Win Rate Still Wasn’t Enough: The Week Exit Discipline Took Over the Story 05.07.2026 1:37
Conclusion The week ended at -2,007 yen, and the uncomfortable part is that the bots were not simply “bad at trading.” They found plenty of winning trades. GateGrid AI even had a day with a 93.3% win rate, which sounds almost too clean. But that number did not protect the portfolio. The real problem was exit quality. Across the week, several bots showed the same pattern: small wins piled up, then...
A 65.2% Win Rate Still Lost Money: The Exit Logic Broke First 02.07.2026 1:48
The biggest result today was not the total loss itself. It was the shape of the loss. GateGrid AI won 15 out of 23 closed trades, which looks fine at first glance, then ended the day at -845 yen. I had to stop for a moment when I saw that number next to a 65.2% win rate, because this is exactly the kind of result that makes win rate feel comforting and dangerous at the same time. Across the four b...
One Bad Exit Defined the Day: Four MT5 LLM Bots on July 1 01.07.2026 1:51
Conclusion The combined closed result was +528 yen , so the day ended positive. Still, the clean number hides the part I kept staring at: the largest single loss was -414 yen on BoundSniper. A day can finish green and still leave a clear warning mark. LLMBridgeTrader was the strongest performer, with six closed winners and no losing trade. GateGrid AI also ended positive, but its payoff ratio was...
A 93.3% Win Rate Still Wasn’t Enough 30.06.2026 1:49
Four MT5 bot trade log for June 30, 2026 The strange part of today was not that the portfolio lost money. The strange part was that one bot won 14 out of 15 closed trades and the four-bot total still finished at -974 yen. I had to look at that twice, because a 93.3% win rate usually feels like the kind of number you want to keep. Today it was only enough to keep GateGrid AI green, not enough to sa...
80% Win Rate Still Lost: Four MT5 LLM Bots on June 29 29.06.2026 1:45
Conclusion GateGrid AI won 8 out of 10 closed trades and still finished at -400 yen. That is the whole day in one line, and it is not a comfortable one. The bot kept collecting small wins, but one -729 yen loss cut through the sequence hard enough that I had to pause for a second. Across the four MT5 bots, the realized total came to -789 yen. The combined win rate was 60.9%, which does not look di...
A 73.9% Win Rate Still Lost Money: The Week I Stopped Trusting Entries and Started Rebuilding Exits 28.06.2026 1:47
The headline from this week is uncomfortable, but useful: the bots were not simply bad at entries. Some of them were right more often than they were wrong, and that is exactly what made the result harder to ignore. Across the June 22–26 run, the total came in at -3,333 yen, and the number that bothered me most was not the loss itself. It was seeing a bot clear a 70% win rate and still fail to prot...
The 57.1% Bot Carried the Day, Not the Perfect One 27.06.2026 1:57
The strongest bot today was not the one with a 100% win rate. BoundSniper closed its single trade cleanly for +10 yen, which is fine, but the real driver was LLMBridgeTrader: 4 wins, 3 losses, +517 yen realized, and a payoff ratio of 2.43. I had to look twice at that combination because 57.1% does not sound dominant until the average win starts doing the work. The full realized result across the f...
A ¥728 Exit Turned the Whole Bot Run Negative 25.06.2026 1:57
Conclusion The day ended at -1,180 yen across four MT5 bots, and the uncomfortable part is that the record did not look broken at first glance. There were 9 winning exits and 7 losing exits overall, so the surface was not ugly. But the payoff ratio was only 0.26, and the largest single loss was -728 yen from GateGrid AI. I paused on that number for a moment, because it was bigger than the total gr...
71.4% Win Rate Still Lost Money: MT5 LLM Bot Log for June 23, 2026 23.06.2026 1:40
The total result was positive: +455 yen across 16 closed trades. That sounds clean enough, and honestly, seeing the total stay above zero was a relief. But the win rate is almost the least interesting number today. The whole portfolio went 13W / 3L, yet the total payoff ratio was only 0.54, meaning the average losing trade was still larger than the average winning trade. The main issue was not ent...
The Average Loss Beat the Whole Bot Lineup 22.06.2026 1:56
Today was not a day I want to judge by win count. The four-Bot portfolio closed at -2,457 yen , and the reason was not that every system failed at entries. It was simpler and more uncomfortable: the losing trades were too heavy compared with the winners. The cleanest Bot on the sheet was LLMBridgeTrader , which finished at +353 yen with a payoff ratio of 5.24 . That number stopped me for a second,...
Win Rate Lied This Week: The Rule-Based Bot Survived While the LLM Bots Bled 21.06.2026 1:55
Win Rate Lied This Week: The Rule-Based Bot Survived While the LLM Bots Bled MT5 LLM auto-trading report, June 15–19, 2026. This is Day 5 of the running log. The four-bot portfolio finished the window at -3,490 yen cumulative , even though several days showed decent-looking win rates on the surface. The uncomfortable part is not the loss itself. It is the shape of the loss. GateGrid AI kept showin...
A 72.2% Win Rate Wasn’t Enough: One Oversized Loss Changed the Whole Day 20.06.2026 1:50
A 72.2% win rate should have made this a decent trading day. It did not. Across four MT5 bots, the combined record was 13 wins and 5 losses, but the final result was -248 yen. For this log, I am treating June 19, 2026 as Day 1 of the published series. Cumulative P/L is now -248 yen. The important part was not that the bots failed to find winners. They found plenty. The problem was that the average...
Win Rate Lied Today: 4 MT5 LLM Bots Finished at -464 Yen Despite a 75% Win Rate 18.06.2026 13:31
The result for June 18 was simple, but a little uncomfortable: four MT5 auto-trading bots closed the day at -464 yen . The portfolio won 27 out of 36 trades , so the surface number looked fine. Still, the payoff ratio was only 0.27 , and that is where the day fell apart. This was not a day where the bots failed to find entries. They found plenty. The real question was whether they knew when to sto...
A 33% Win Rate Lost Less Than a 50% Win Rate 17.06.2026 1:48
Conclusion June 17 was not a “win rate day.” The four MT5 bots ended at -1,615 yen , and the strange part is that the bot with a 33.3% win rate , LLMBridgeTrader, lost less than GateGrid AI at 50.0% . I had to look twice at that. The answer was not hidden in the entry count. It was in payoff ratio and the size of the worst exits. For this pasted record, I am treating it as Day 1 / cumulative -1,61...
Win Rate Lost to the Exit: Four MT5 LLM Bots Closed the Day at -1,445 Yen 16.06.2026 1:45
June 16, 2026 was not a “bad entries” day as much as an “exit discipline” day. Across the four MT5 bots, the combined realized result was -1,445 yen, even though the total win rate was still 53.3%. That number made me pause a bit, because more trades won than lost, and yet the day still bled out. For this series ledger, I am treating the pasted history as Day 1: cumulative realized P/L is -1,445 y...
The Best Trade Was the One That Got Blocked: Four MT5 LLM Bots on June 15 15.06.2026 1:48
June 15, 2026Running log: Day 1Cumulative realized P/L: +282 yenEquity impact including open positions: +46 yen The portfolio finished green, but the most interesting part of the day was not the profit. It was the restraint. Four MT5 bots ended with +282 yen in realized P/L, yet open positions dragged -236 yen, leaving the equity impact at only +46 yen. That number made the day feel thinner than t...
A Win Rate of 80% Still Lost Money: Four MT5 Bots Finished the Day at +3 Yen 13.06.2026 1:39
Conclusion Today’s combined result for the four MT5 auto-trading bots was +3 yen . On the surface, that is almost flat, and I paused for a second because the number looks too small to say much. But the inside of the day was not small at all. GateGrid AI finished at -304 yen . The other three bots absorbed that loss with a combined +307 yen , leaving the portfolio slightly positive. This was not a...
Turning Red Days into Training Data: The June 11th AI Bot Trade 11.06.2026 1:45
Turning Red Days into Training Data: The June 11th AI Bot Test In today’s episode, we break down the June 11th live test of our four MT5 automated trading bots. The portfolio ended the session with a total realized loss of -1,295 JPY, representing a daily return of about -0.75%. But as we discuss in today’s podcast, in the world of machine learning, a losing day isn’t just a failure—it’s highly va...
Diversification Saved the Day: The Power of a Multi-Bot Portfolio [June 10th Trade] 10.06.2026 1:59
In today’s episode, we break down the June 10th parallel test of our four MT5 automated trading bots. The total realized profit for the day was a modest +333 JPY, representing a +0.19% return on the portfolio. While it wasn’t a massive windfall, this session perfectly demonstrated a vital concept: the power of diversification. We dive into the performance of each bot to see how portfolio structure...
Live Data Beats Backtests: Measuring Real EV After a Red Day [June 9th ] 09.06.2026 1:39
In today’s episode, we break down the June 9th parallel test of our four MT5 automated trading bots. The portfolio ended the session with a combined realized loss of -1,432 JPY. At first glance, it looks like a simple losing day, but the detailed results revealed exactly what we need to do next to improve our systems. We dive into the distinct performances of each bot to uncover why live data is f...
The Day the Gate Worked: Why Doing Nothing is a Winning Strategy [June 8th Trade] 08.06.2026 1:40
In today’s episode, we break down the June 8th parallel test of our four MT5 automated trading bots. The portfolio ended the day with a solid realized profit of +1,189 JPY. But the real success story wasn’t just about the money we made—it was about the money we didn’t lose, thanks to our newly implemented safety layers. We dive into the performance of each bot to see how they executed their distin...
Why AI Trading Bots Need Brakes: The June 1–5 Weekly Review 07.06.2026 1:43
In today’s episode, we review the weekly performance of our four MT5 automated trading bots from June 1 to June 5. The portfolio ended the week with a combined realized loss of -3,307 JPY. While it wasn’t a profitable week financially, it was arguably our most valuable week for system development. We break down each bot’s behavior to understand why giving AI complete autonomy is a risky game, and...
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