BNF

On a December morning in 2005, one typing mistake at a major Japanese brokerage sent shock waves through the Tokyo Stock Exchange. One quiet trader saw it, acted, and earned roughly 2 billion yen in minutes.

His name was Takashi Kotegawa. The world knows him as BNF, the J-Com Man.

He reportedly started with about $13,600 saved from part-time work. He had no Wall Street mentor, no hedge fund and no secret tips. Just a computer, a depressed market and a stubborn habit of doing the work every single day.

In this fast, true-story deep dive, you will discover:

- The Japan that shaped him, from the bubble crash to the rise of online trading
- How he reportedly traded: buying panic and selling the rebound
- The J-Com error of December 8, 2005, told step by step
- What happened to Mizuho Securities and the Tokyo Stock Exchange afterward
- The Livedoor Shock and his years of silence
- The truth behind the "refused the big bank" legend, what is documented and what is myth
- His most-cited mistake in the 2008 crisis
- 12 practical lessons on discipline, risk and independence
- Why most people should NOT copy a day trader, and what to learn instead

Every claim is labeled honestly: confirmed facts are stated plainly, and unverified reports are marked. No invented quotes. No fairy-tale shortcuts.

If you love true stories of money, markets and mindset, this book is for you.

Not financial advice. Educational and entertainment purposes only.