.Cooper.
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Not a financial advisor. Personal experience only, not advice — do your own research.
START HERE
You can have the best stock picks in the world and still blow up your account if you size positions wrong. Position sizing is the difference between a bad pick costing you 2% of your portfolio versus costing you 30% of it.
Most beginners lose money not because they picked bad stocks, but because they went all-in on one or two names and had no plan for when they were wrong.
Risk management isn't about avoiding losses — losses are part of this. It's about making sure no single loss is the one that takes you out of the game.
This is also why leverage and margin wreck so many people. It doesn't just amplify gains — it removes your ability to just hold through a drawdown, which is the entire long-term strategy from Guide 1.1.
Look at your current portfolio. If your biggest position went to zero tomorrow, would you be fine, or would it actually hurt? If the honest answer is "it would hurt a lot," that's the thing to fix before anything else in this series matters.
Long Term Investing 1.3 [Position Sizing & Risk Management]
◆━━━━━━━━━━━━━━━━━━━━◆START HERE
Why This Matters More Than Stock Picking
You can have the best stock picks in the world and still blow up your account if you size positions wrong. Position sizing is the difference between a bad pick costing you 2% of your portfolio versus costing you 30% of it.
Most beginners lose money not because they picked bad stocks, but because they went all-in on one or two names and had no plan for when they were wrong.
How I Actually Size Positions
- No single stock gets big enough to wreck me if it goes to zero. If a position failing completely would seriously hurt my financial situation, it's too big.
- Conviction affects size, but doesn't override the cap. Even my highest-conviction picks stay within a sane percentage of the portfolio.
- New positions start smaller. I'd rather build into something as the thesis proves out than go max size on day one.
- Diversification isn't about owning 50 different stocks. It's about not being one earnings report away from disaster.
The Risk Management Side
Risk management isn't about avoiding losses — losses are part of this. It's about making sure no single loss is the one that takes you out of the game.
Before I buy anything, I ask: if this goes to zero tomorrow, does my overall plan still survive? If the answer is no, the position is too big, period.
This is also why leverage and margin wreck so many people. It doesn't just amplify gains — it removes your ability to just hold through a drawdown, which is the entire long-term strategy from Guide 1.1.
SYSTEM CHECK
Look at your current portfolio. If your biggest position went to zero tomorrow, would you be fine, or would it actually hurt? If the honest answer is "it would hurt a lot," that's the thing to fix before anything else in this series matters.
water
