Yep, when I say "singles" I am not referring to one contract but to modest gainers.
Yes, understood. Say you have an average pnl of $500/trade. Would you (for example) double size so that average becomes $1000/trade?
Yes until slippage becomes material but the ES is liquid enough to handle size.....to a point.
I find it surprising trade size would be dictated by an "expected" gain.
For myself, specific signals along with a volatility factor will dictate size. Using the "singles" metaphor, assuming one of my garden variety signals, volatility all but guarantees a single, so **IF** high volatility is present in those cases, increased size is used. With my less general (i.e. much more specific) signals, volatility (or expectation of) is included in the signal already.
I NEVER add size for PnL metrics. For day-trading indexes, my vanilla size is 3. Increased size is multiples of 3. I am also all-in-all-out, no scaling in or out.
I am not challenging or suggesting anything. More likely I've glossed over or misinterpreted some part of the discussion.
Trade On!