Category: Monthly Fund Report

2026 March Performance Report

Brawler Logic System Trading (Version 17.5)
Korean Stock Market: +3.70%
U.S. Stock Market: -11.00%
Period: Feb 28, 2026 – March 27, 2026 (Closing Prices)

Summary

February 2026 is summarized as
The US-Iran war and the bubble in the Korean market made March very unpredictable.
Every trading day was a test for investors’ hearts.

U.S. Stock Market

The US market was a very tough ring for Brawler. The war made everything look bad.

In early and late March, I tried to fight back with “jabs,”
but the market hit back with a “heavy hook.”
I took a lot of damage.

Luckily, in the third week of March, the system triggered a “Reducing Position Size” signal.
I cut my positions quickly. This helped me avoid even bigger losses.

Brawler System Return : -11.00%

US Stock Market Benchmark : -7.31% (SPY & 2 other stocks)

Korean Stock Market

The KOSPI 200 crashed by more than -13%.

It was total chaos.
However, the Brawler system managed to stay in the green.

I dodged some punches from the market, but I also got hit a few times.
I had big gains at one point, but then lost some when the market turned.
Still, staying positive in this mess is a win.

Brawler System Return : +3.70%
Korean Stock Market Benchmark : -9.77%
Korean Stock Market :
KOSDAQ150: -5.82% / KOSPI200: -13.73%

Brawler System Logic Change

The Brawler system uses statistics and machine learning to filter out market noise. Right now, the Korean market is in a bubble, so its own risk signals are not working perfectly. Starting in April, I will use a new strategy:

Sharing Signals : The Korean account will follow the US “Reduce Capital” signals. I will trade conservatively.

Recovery Timing : When the US risk signal stops, I will return the Korean investment amount to normal.

[Past Reports]

Monthly Fund Report January 2026
Monthly Fund Report February 2026
Monthly Fund Report March 2026 – Brawler’s Grit in the Fog of War

2026 January Performance Report
Brawler Logic System Trading (Version 16.5)

Summary

Jnanuary 2026 is summarized as “The Korean stock market showed a very strong rise”.

U.S. Stock Market (January 2026)

During this time, Russell 2000 showed good performance.
It looked like money was rotating from large-cap stocks to small-cap stocks.

The trades were quite good overall, but a few strong drops prevented the account from keeping more profit.
That part was a little disappointing.

Brawler System Performance : +1.81%

US Stock Market Benchmark (average of SPY, QQQ, and IWM): +2.73%
SPY: +1.47%
QQQ: +1.23%
IWM: +5.48%

Korean Stock Market (January 2026)

“The Korean stock market showed a very strong rise”

Because of this strong rally, I felt FOMO.
Honestly, it makes you wonder if simply using a Buy & Hold strategy could make huge profits without difficult analysis.

Brawler System Performance : +3.05%
Korean Stock Market Benchmark : +29.97%
KODEX KOSDAQ150: +32.86%
KODEX 200: +27.08%

Brawler System Logic Change

For the U.S. market, we use a model that combines a statistical model + machine learning model.
For the Korean market, we mainly use a model based on historical case analysis, and the statistical + machine learning model is still used with a small portion of the trades.
Looking only at January, the statistical + machine learning model seems to be showing better.

[Past Reports]

Monthly Fund Report January 2026
Monthly Fund Report February 2026
Monthly Fund Report March 2026 – Brawler’s Grit in the Fog of War

2026 February Performance Report

Brawler Logic System Trading (Version 17.5)
Korean Stock Market: +7.26%
U.S. Stock Market: +1.05%
Period: Jan 31, 2026 – Feb 28, 2026 (Closing Prices)

Summary

February 2026 is summarized as
“The Brawler System made some money,
but it couldn’t run as fast as the overall market this February.”.

U.S. Stock Market

In the U.S., the Nasdaq 100 did a bit worse, while the Russell index did okay.
The Chinese market was not good, but Emerging Markets were the opposite and did well.

I missed two trades because I was away on a business trip (it was impossible to wake up in the middle of the night there).
I was very lucky because the market went down during the times I couldn’t trade.

US Stock Market Benchmark :SPY & 4 other stocks : -0.82%

Brawler System Return : +1.81%

Korean Stock Market (February 2026)

Following last month, the Korean market continued to go up very strongly.
I first started trading stocks in 1998 at LG Investment & Securities.
In about 30 years since then, I have never seen the market rise this much.

Korean Stock Market Benchmark : +11.08%
KODEX 200: +21.75% / KODEX KOSDAQ150: +0.4%

Brawler System Return : +7.26%

Brawler System Logic Change

In February, our Machine Learning model performed better than our old model that only looks at the past. We will not change the logic in March and plan to keep this same pace.

The COVID-19 crash happened 6 years (72 months) ago. Now, many “Quant” experts are starting to remove that old data from their systems.

[Past Reports]

Monthly Fund Report January 2026
Monthly Fund Report February 2026
Monthly Fund Report March 2026 – Brawler’s Grit in the Fog of War