Understanding the Nuances of Position Sizing

Hey everyone, wanted to drop a quick thought on position sizing, which I've found to be one of the most critical, yet often overlooked, aspects of risk management. It's not just about how much you're willing to lose on a single trade, but how that plays into your overall portfolio health. I've been experimenting with a few different approaches beyond just a simple fixed percentage, especially when dealing with higher volatility assets.

For example, if you're looking at a scenario where $CADUSD is moving in a tighter range like its recent 0.7173–0.71813, your stop loss might be relatively close. A fixed 1% risk of your account on that trade would mean a larger position size. Compare that to something like $EWZ, which saw a pretty sharp -3.44% drop today and traded between 33.87 and 35.1083. If you're risking 1% on EWZ, with its wider typical moves, your actual position size in terms of units would naturally be much smaller to maintain that same dollar risk. This dynamic sizing, adjusting based on an asset's volatility and your chosen stop-loss distance, is what really protects capital long-term, rather than just using the same amount of capital for every trade regardless of the underlying risk. Curious how others here approach this, particularly with very different asset classes?