079 – Strategy Validation with Dave Bergstrom

With the toolsets we have available to us today it’s really quite easy to create a trading strategy by just mining market data.

As we’ve just heard in that opening bit of audio and also from previous podcast guests too, if you try enough combinations you can find something that appears to work purely by chance or by luck.

The challenge however is trying to identify something that could be sustainable.

Something that may persist long enough in the future for us to take advantage of, and hopefully make some money from.

Our guest for this episode, Dave Bergstrom from BuildAlpha, has spent years researching, building, testing, and implementing market making and trading strategies for a high frequency trading firm, CTAs, money managers, individual clients, and even aspiring retail traders.

In this episode Dave is going to share some of his insights into strategy development and validation, including:

  • How adjusting the ratio of in-sample/out-of-sample data can lead to creating different types of strategies
  • Variance testing – what is it and how can it be used in the strategy creation process
  • How E-ratios can be used to determine how an edge decays over time & weed out potentially poor strategies with good backtest results
  • Why volume and volatility are important factors to consider when building trading strategies
  • Loads of other ideas to test and validate the robustness of trading strategies.

Resources mentioned in this episode

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