Lessons Learned
35 lessons from trading my own money since 2018, newest first. Each one links to the post it came from.
2024
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Shorting stocks as part of risk management
Shorting weaker baskets during over-extended rallies can offset long exposure and smooth the overall equity curve.
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Backtesting can’t be used to forecast the future
Backtests only validate an idea's statistical significance on past data; they cannot predict the future or create strategies.
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Everything between the entry and exit is unimportant
Once risk, stop and target are set, volatility during a trade doesn't matter; let the edge play out.
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Good performance comes from not knowing
Nobody knows the market's next move; risk premium lies in uncertainty, not in crowded consensus trades.
2023
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There’s more to life than trading
Trading shouldn't become an obsession; a balanced life with relationships, health and experiences matters more.
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Price makes news, not the other way around
People link price moves to news after the fact; I manage money by price and tune out the noise.
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Drawdowns are like scars showing that we have survived
Drawdowns are an inevitable part of taking risk; surviving them within expected ranges is nothing to regret.
2022
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Placing trades should be boring
Consistently following the trading plan with small losses should feel boring, like a business, not a gamble.
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The house edge
Like a casino, a modest edge with higher trade frequency and limited bet size can outperform.
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Technicals often precede fundamentals
Price trends often turned down before bad earnings, so I avoid holding downtrends into earnings announcements.
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In the markets you don’t make it happen, you let it happen
You cannot control the market short-term; profits are the result of a good process, so let it happen.
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I’m attacking the risk, not trying to avoid it
Risk cannot be avoided for excess returns; diversify across markets, timeframes and directions, and size positions carefully.
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Comparison makes market participants unhappy
Comparing returns to others breeds performance chasing; focus on your own absolute performance and process.
2021
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Be bold with your profits
Taking small profits early is a loser's game; tolerate risk on open profits, but cut losses quickly.
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I don’t pick stocks, the stocks pick me
I pick no stocks by fundamentals; predefined rules on price trend, swing or momentum surface the candidates.
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Every trading strategy has drawdowns
Accounts are in drawdown most of the time; know your strategy's expected distribution and stick with it.
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Trading into earnings is a crapshoot
Earnings reactions are random for a technical trader; I exit swings beforehand, letting only wide-stop trend trades through.
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All stocks are bad unless they go up in price
I buy stocks going up and sell when they fall, keeping losses small so winners do the work.
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How to beat the S&P 500 index with market timing
A simple monthly 200-day moving-average rule beat S&P 500 buy-and-hold since 2000 with far smaller drawdowns.
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A bubble is a bull market you are not participating in
Knowing your system's expectancy and risk of ruin lets you ride trends through drawdowns rather than fear bubbles.
2020
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I don’t take profits and losses, I exit
Exits follow rules, not P&L; losses are business costs, unlike amateurs who cut winners and hold losers.
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Good trading ideas often turn out to be bad when backtested
Backtesting shows sitting out for perfect setups misses moves; frequent modest edges can beat rare high-profit-factor signals.
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It is OK to be wrong, it is not OK to stay wrong
Decide exits before entry and take the loss when wrong; losses are to be managed, not avoided.
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It is not thinking that makes big money in stock market
Big money came from sitting with winning positions and cutting losers, not from predicting news or media narratives.
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The data for any decision is infinite
Endless reasons exist for any market direction; follow system signals and manage risk instead of predicting.
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The best loser is the long-term winner
Trading means learning to lose small; following rules to preserve capital keeps you in the game.
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Focus on process, not results
Market outcomes are random; follow your trading plan and judge the process rather than individual results.
2019
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Trading is not easy, but it’s simple
Trading methods can be simple; the hard part is discipline to stick to the plan without emotion.
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Amateurs want to be right, pros want to make money
Pros take small losses when wrong and honor stop orders; they aim to make money, not be right.
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Treat trading like a business
Treat trading as a long-term business: follow rules, don't rush, let setups come, document and review trades.
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Live to fight another day
Take small losses to preserve capital so you can make big profits when the right time comes.
2018
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Never throw good money after bad
Without a defined exit plan I averaged down; technicians shouldn't add to losing positions, buy stocks rising.
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Cut losses quickly, let profits run
Respect your plan's profit targets, and exit losing trades quickly; re-entry is only a commission away.
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Always use the same risk size
An oversized position caused emotional stress and lost sleep; keeping a consistent risk size avoids that.
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Trade your system, not the news
Trading around news and headlines led to losses; follow your system and read supply and demand from charts.