A pre-defined process works best

Morphic follows a rules-based policy for stocks that have lost the firm money. Empirical evidence suggests that a pre-defined process deals with these situations better than allowing complete discretion. Prior to initiating a position, the analyst is required to identify not only risks, but also the likely impact of that risk; its probability, and their confidence interval. This gives an expected loss under different scenarios and allows price levels to be pre-defined. These levels are crosschecked based on the volatility of the stock – otherwise, you run the risk of exiting the stock on “noise”. Sizing is what drops out of the process at the end of this. With loss tolerance already defined, the PM needs to decide if they want to fully incept at the start or whether to keep some “up their sleeve” to take advantage of a risk event to add.
Chad Slater

Ellerston Capital

As a rough rule of thumb, a “statistically significant move” and/or an event that wasn’t forecast would result in exiting rather than adding to the position.

Chart Below: Distribution of maximum drawdowns of the S&P 500 stocks in 2015: Beyond 20% the relationship becomes non-linear – setting loss levels reduces the risk of owning (a lot of) a stock where this happens to you.

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Chad Slater
Chad Slater
Co Head Global Equities (ex-Asia)
Ellerston Capital

Chad co-founded Morphic Asset Management in 2012. As a stock picker Chad is also a generalist but has strong regional knowledge of Europe and the Americas. He has also been awarded the CFA Charter.

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