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 four bots was +524 yen. That number is not huge by itself, but the shape matters more than the size today. LLMBridgeTrader absorbed three losing trades, including a -194 yen hit that made me pause for a second, and still finished well ahead because its winners were allowed to breathe. That is exactly the kind of exit behavior I wanted to watch in this experiment.

For the bot roles, I am treating BoundSniper as the TradingView execution bot, LLMBridgeTrader as the AI-led position planner, and GateGrid AI as the CatBoost plus Ollama gated grid system, based on the saved bot memo. ts

■ GateGrid AI +71 yenRecord: 1W / 1LWin rate: 50.0%Gross profit: +89 yenGross loss: -18 yenPayoff ratio: 4.94Max loss: -18 yen

■ BoundSniper +10 yenRecord: 1W / 0LWin rate: 100.0%Gross profit: +10 yenGross loss: 0 yenPayoff ratio: N/A, no losing tradeMax loss: 0 yen

■ LLMBridgeTrader +517 yenRecord: 4W / 3LWin rate: 57.1%Gross profit: +748 yenGross loss: -231 yenPayoff ratio: 2.43Max loss: -194 yen

■ MLScore GF-T4 GB -74 yenRecord: 1W / 1LWin rate: 50.0%Gross profit: +202 yenGross loss: -276 yenPayoff ratio: 0.73Max loss: -276 yen

■ Total +524 yenRecord: 7W / 5LWin rate: 58.3%Gross profit: +1,049 yenGross loss: -525 yenPayoff ratio: 1.43Max loss: -276 yen

Open positions were still on the board at the report cutoff. LLMBridgeTrader had an unrealized +92 yen position, while MLScore GF-T4 GB had an unrealized -180 yen position. So the realized result was +524 yen, but the mark-to-market feel of the day was closer to +436 yen. I do not want to blur those two numbers, because open P/L can turn into a very different story by the next report.

Today’s theme

Today was an exit test more than an entry test. The entries mattered, of course, but the day was decided by what each bot did after being in the trade: whether it cut too early, held long enough, or let one loss dominate the session.

That is especially important for the LLM-driven bots. When the model is allowed to decide not just direction but also OPEN, HOLD, CLOSE, or REVERSE, the question changes. I am no longer only asking, “Did it predict the next move?” I am asking whether it knew when to stop insisting on its first idea.

GateGrid AI

GateGrid AI only closed two positions today, one win and one small loss. The result was +71 yen with a 50.0% win rate, but the payoff ratio was 4.94 because the losing trade was only -18 yen. That -18 yen loss is the kind of small scratch I can live with; it does not force the next trade to become a rescue mission.

The interesting part is that GateGrid AI did not need many trades to stay positive. This bot is built around filtering, with CatBoost first narrowing the entry probability and Ollama acting as a second gate. On a day like this, the low trade count is not automatically a weakness. It might simply mean the bot found only a couple of situations worth touching.

The exit also looked controlled. There was no oversized loss hiding under a good win rate, and no open position left behind at the cutoff. I would not call this a strong day, but it was a clean one. For a grid-style bot, clean can be more valuable than exciting.

BoundSniper

BoundSniper had the cleanest record on paper: 1 win, 0 losses, +10 yen. A 100.0% win rate always looks nice for a second, then the amount pulls it back to earth. This bot did its job as an execution layer, and that is probably the correct way to read the result.

Because BoundSniper is not trying to be an AI trader, I do not want to over-interpret the trade. It received the TradingView-side signal, entered, exited, and ended positive. No drama, no open exposure, no large adverse move.

The limitation is that one trade tells us almost nothing about edge. It tells us the pipeline worked. That matters, especially in live automation, but the performance story belongs somewhere else today.

LLMBridgeTrader

LLMBridgeTrader was the center of the day. It closed 7 trades, won 4, lost 3, and still ended at +517 yen. The payoff ratio of 2.43 is the key number here. A 57.1% win rate with that payoff profile can survive a few mistakes, and today it did exactly that.

The bot took three losses: -18 yen, -194 yen, and -19 yen. The -194 yen loss bothered me because it was large enough to test whether the rest of the session would become damage control. But the later winners, especially +369 yen, changed the whole texture of the result. That trade is where the bot stopped looking merely active and started looking useful.

The open position also matters. At the cutoff, LLMBridgeTrader was holding a EURUSD sell position with +92 yen unrealized. That suggests the bot had not simply churned itself flat after the realized gain. It was still holding a live idea. Whether that was discipline or stubbornness will only be clear after the next close, but for today the exit logic looked better than I expected.

MLScore GF-T4 GB

MLScore GF-T4 GB was the weak spot. It had one win of +202 yen and one loss of -276 yen, leaving the realized result at -74 yen. The win rate was 50.0%, the same as GateGrid AI, but the payoff ratio was only 0.73. Same win rate, completely different feel.

The maximum loss was -276 yen, which was also the largest closed loss across all bots. That is the kind of number that changes how I look at a flat-looking record. One win and one loss should be almost boring, yet here the loss carried more weight than the win.

There was also an open GBPJPY buy position with -180 yen unrealized at the report cutoff. That does not mean the trade is wrong, but it does mean the day was not really finished for this bot. My suspicion is that the issue is not entry alone. The exit line, or maybe the distance between “hold” and “admit defeat,” needs more review.

Summary

Today’s realized total was positive, but the real lesson came from the contrast between win rate and loss shape. BoundSniper had the perfect record and only added +10 yen. GateGrid AI won only half its trades and still stayed clean. LLMBridgeTrader carried the account because its average winner was large enough to cover its misses. MLScore GF-T4 GB reminded me that a 50.0% day can still feel heavy when the bigger side is the loss.

I am not ready to call LLMBridgeTrader stable from one good session. But today, the AI-led exit decisions looked less like noise and more like something worth continuing to measure.

② Substack Note

The surprise from June 26 was simple: the 100% win-rate bot was not the star.

BoundSniper went 1-for-1 and made +10 yen. Clean, but tiny.

LLMBridgeTrader went only 4W / 3L, yet finished +517 yen because its winners were much larger than its losers. The payoff ratio came in at 2.43, and that changed the whole day.

Total realized P/L across the four MT5 bots: +524 yen.

The experiment is becoming less about “can the LLM pick direction?” and more about “can it stop holding the wrong idea, while staying long enough with the right one?”

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