Limit Orders Don’t Protect You From News
The ‘safe’ order type can be the one that leaves you chasing the worst fill.
Survival
The math of staying alive: leverage, tails, drawdowns, liquidation.
Your Edge Must Survive the Worst 5 Minutes
A strategy that works until the first real shock isn’t an edge. It’s calm-weather cosplay.
Risk Limits Without Enforcement Are Fiction
If your risk limits depend on willpower, they will fail on the exact day they were designed for.
Financing Turns Positions Into Clocks
If your position pays negative carry, time is against you; financing converts ‘hold’ into a slow-loss trade even if price doesn’t move.
Averaging Down Leverages a Broken Thesis
Averaging down without new information increases exposure exactly when your probability is worsening.
Carry Builds Slowly, Unwinds Fast
Carry pays you slowly in calm regimes and punishes you violently in stress because the unwind is faster than the build.
Risk of Ruin Is the Only Metric That Matters
If your plan has meaningful risk of ruin, time will eventually find the sequence that ends you.
One Broker Is a Single Point of Failure
Concentrating execution at one broker turns outages, margin changes, and disputes into existential risk.
If You Don’t Know the Worst Case, You Don’t Know the Size
Position sizing without a worst-case scenario is just leverage with better vocabulary.
Weekend Risk Is a Hidden Leverage Tax
Holding leveraged positions through market closures is paying for gap risk with your account instead of with a priced hedge.
You Can’t Hedge Liquidity With Correlation
A hedge that relies on normal correlation will often fail when the real problem is liquidity and forced selling.
Your Exit Liquidity Is Your Real Edge
A strategy that can’t exit cleanly under stress is not an edge, it’s deferred risk waiting for a bad sequence.
Margin Is Not Risk, Notional Is Risk
Margin is collateral; your risk is the notional exposure, because P&L moves on notional, not on margin posted.
Forced Liquidation Is the Only Thesis When It Arrives
When you’re forced, your view becomes irrelevant; the only thing that matters is solvency and exits.
Sequence Risk Beats Your Average
Two strategies with the same average return can have radically different survival because the sequence of returns can kill you.
The One Bad Day Problem
Most accounts don’t die from 100 small mistakes; they die from one clustered mistake on a volatile day.