Trading with Rules and Intuition
Blending Systematic and Discretionary Methods
I always chuckle at the old saying “Trade like a robot”
Why would you want to trade like a robot?
If you have a systematic strategy that has zero discretionary element to it then get it coded up and have an actual robot trade it for you!
A robot doesn’t need the bathroom, a lunch break, or sleep…
I know what the phrase is trying to say right – you should trade your rules in a systematic way without emotion or second guessing.
The problem with that is you lose a key part of being a human trader.
And humans have major advantages in a lot of areas:
- Flexibility and the ability to adapt.
- Ability to leverage intuition and experience.
- A better understanding of market psychology.
That gives us a certain edge that even the best trading robots struggle to replicate.
The sweet spot is probably a combo of the two.
Iron discipline, a rule-based trading plan.
PLUS
An element of discretion and flexibility baked into that plan.
- A context filter
- A price action trigger
- The final say to enter lies with you the trader
Bad analogy alert here, but it’s the best I’ve got on the fly…
Think of a nuclear weapon. (Stick with it!)
A nuclear weapon has a whole raft of protocols, systems, rules, and automation.
But that final decision to pull the trigger rests on a human.
Why?
Because we need to have that final say in something so incredibly important.
Things like…
#1 Avoiding false alarms – humans can pick up on all data points and make a better judgement on the nuances than any robot.
#2 Further consequences – an automated system isn’t designed to think of the consequences of its actions, it just does what it’s told.
#3 Complex decision making – There’s so much to consider outside of an IF THEN statement. You’d need to pre-empt every single variable, which is almost impossible.
(And yes I appreciate buying a 30 lot of ES is nothing like making a decision to launch a nuke… but you get the idea.)
Humans are just better at making complex decisions.
Back to trading.
I think there are 3 ways to go as a trader:
Fully systematic – You have strict rules for entry and exit, you never deviate and everything is laid out in a simple yes/no structure. You can either trade this manually or automatically.
A perfectly acceptable way to trade a strict edge.
Fully discretionary – You have no rules, and you just take the trade you feel like taking.
Ok, but with no structure, it’s easy to get lost.
Hybrid – You use rules and systems to help guide your trading, but add a discretionary element to the mix.
A potential sweet spot?
I think they can all work…
Each has pros and cons.
I like to trade a mixture:
- Setups that are totally rule-based (usually built from some market observation)
- Setups that have rule-based filters, but that final trigger decision lies with me
They sit in separate buckets, accounts, and head space in my mind.
I don’t worry about the nuances of the rule-based system, it’s a yes/no process.
Similarly, with setups that have discretion, I trust myself to make the best decision I can with the information I have at the time.
Very separate approaches.
You don’t have to marry just one, but I do think you need to define your method for a specific setup or strategy.
Worth some consideration in your own trading business.