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Election Follow-up: Probability-Weighting Forecasts

The result of the United States presidential election last week delivered more than just a surprising new Commander in Chief–the markets surprised, too. Initial reactions to the news that Donald Trump was the likely winner at approximately 1:00 EST shocked markets and crushed risk appetite – much as many had expected. Risk was immediately dumped in favor of the usual havens, including gold and CHF, and equity vol jumped more than 20 percent in the early hours. But, as time wore on, prices settled and liquidity improved. As the opening bell rang Friday morning, we were witness to far-reaching reversals as stocks pared losses and pushed on to making strong gains by the end of the day.

Below I illustrate the extent to which markets moved from initial reactions to twelve hours following:

Forecast
Probability (approx.)0.80.2
Asset ClassClinton WinsTrump Wins
USDCHF2%-4%
US Bond Prices-1%2%
US Equities1%-3%
Gold-1%5%
Volatility-5%20%
Initial ReactionChange on close (01.00 ET)Forecast
USDCHF-2.0%-4%
US Bond Prices0.4%2%
US Equities-3.7%-3%
Gold3.9%5%
Volatility19.0%20%
12hrs LaterChange on prev. close (13.00 ET)12hr Change (% Points)
USDCHF0.5%2.5%
US Bond Prices-2.3%-2.7%
US Equities1.0%4.7%
Gold0.1%-3.8%
Volatility-2.2%-21.2%

The above table captures the potential nature of event risk outcomes–limit down one moment to unch and then higher within hours. What is crucial to note here is the biggest movement of capital happened sometime after information was known, not as it was known, like many are more familiar.

Below is an example of how clients can assign probabilities to forecasts, which in turn allows for an overall estimated expectation of event outcomes:

Aggregated by Strategy

agg_by_strategy

Strategy drill-down

strategy_drill_down

Being fortunate to predict an initial reaction matters if exposure to prices stops there–the reality can be markedly different.


David White
David White
About the Author

David White worked as an equity trader and portfolio manager in derivatives for more than five years before joining Imagine’s London office as a Consultant in 2015. David’s roles are to advise and offer consulting services for systematic applications of risk management and derivatives pricing. David leads and is the project manager for EMEA client implementations. David holds a bachelor’s degree from Bournemouth University. He can be reached by email and phone: +44 (0) 7440 0743.

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