Understanding Position Sizing: Why It's Crucial Beyond Just Risk/Reward

Hey everyone, diving into something fundamental that I'm still wrapping my head around effectively: position sizing. We all hear about risk-reward ratios, but sizing is the actual mechanism that translates that into capital preservation. It's not just about setting a stop-loss; it's about determining how much capital you're comfortable putting at risk on that specific trade relative to your entire portfolio. For instance, if you decide you'll never risk more than 1% of your total capital per trade, and you're looking at a $SI trade right now at $21.13, with a stop set at $20.00, your potential loss per share is $1.13. If your portfolio is $10,000, 1% is $100. So, you'd divide $100 by $1.13 to get roughly 88 shares. This simple calculation prevents a single bad trade from wiping out a significant chunk of your account, even if your win rate is decent. It's a key piece of the puzzle I'm still trying to master consistently. Curious how others approach their sizing in different market conditions?