Strategy

My trading style varies depending on market conditions. Mostly, though, I trade based on momentum and volatility. I look for good entry points based on technical analysis, news or even intuition.

Going after stocks with good volatility and positive momentum was the key to winning CNBC’s "Squawk Box" Fantasy Portfolio Challenge. The trick is to identify which stocks have the most potential for the easiest gain with the lowest risk.

My style in Strategy Lab will be similar. I will continue to look for bargain stocks that are ready for a bounce.

Beyond that, nothing fancy. I mix straight arbitrage and momentum-type plays based on various types of trading scenarios. I watch for general market sentiment and sector-momentum indicators.

The best trades are within hot sectors. Stock-shorting strategies will also be utilized many times during the duration of contest when I see fit to do so.

Editor's note

Ko won CNBC's six-week "Squawk Box" challenge largely thanks to a single dramatic trade.

Ko and the other contestants started in early April with a virtual $1 million portfolio. Ko's portfolio was worth about $2 million when he put the entire amount on Escala Group (ESCL, news, msgs). The stock had had hit a 12-month high of $35 in February but fell precipitously after Spanish prosecutors declared its majority shareholder and only major customer -- Afinsa Bienes Tangibles -- insolvent after raiding the company's offices in an investigation into a stamp-investment program. He bought near the bottom, around $4, and his portfolio surged as Escala rapidly recovered.

He ended the contest with $5 million -- a 400% gain.