You’ve heard it a hundred times. A stock you own has had a good run, you’re sitting on a fat gain, and someone (your broker, your brother-in-law, the voice in your own head) tells you to take some off the table. Lock it in. Bank the win. Nobody ever went broke taking a profit.
And maybe you won’t go broke taking a profit. You just won’t bank as much money as you might have if you’d continued holding. Profits you never see don’t end up on a brokerage statement. They are invisible. It’s the four-bagger you sold when it had doubled. It’s twenty years of compounding you swapped for one good year.

Let me show you what I mean, using a stock Tony pulled apart on the show this week.
NRW Holdings. Ticker NWH (which always confuses me). An engineering and contract mining outfit out of Perth. I bought it in my super portfolio in May last year and it’s up about 150%. I also hold it in one of the Light portfolios from a few weeks earlier, where it’s up 158%. Its neighbour in the sector, MacMahon Holdings (MAH), is up 101% in the Light portfolio since November. Over the last twelve months NRW has run 123% and McMahon 201%. Materials was the best-performing sector on the ASX, up 41%.
NRW’s QAV score today is 0.04, well below our 0.10 cut-off, so it isn’t on our buy list today. Not because it isn’t a great company but because it is no longer a great BUY. It was when a great buy when we bought it. The score fell BECAUSE it worked.
QAV is quality at value. The quality half of NWH hasn’t gone anywhere. The business is running hot, revenue up 19.5%, EBITDA up 36.5%, underlying profit up 42%, an order book north of seven and a half billion dollars. What changed is the price. We bought it cheap. It isn’t cheap anymore. As the price climbed the value half of the equation collapsed, and the score came down with it. A falling score on a stock you already own doesn’t mean sell. It means the stock did exactly what you bought it to do.
This is where the take-a-profit brigade get to work. The score’s gone. The PE looks terrifying (53 times, though that’s warped by a one-off write-down I’ll spare you). It’s had a monster run. Surely you sell and give yourself a pat on the back?

The academic data is unkind to that instinct. Terrance Odean went through 10,000 brokerage accounts from 1987 to 1993 and found the winners people sold went on to beat the losers they held onto, by 3.4% over the following year. Investors are brilliant at watering their weeds and cutting their flowers. Peter Lynch said it best: “Selling your winners and holding your losers is like cutting the flowers and watering the weeds.” Warren Buffett liked that line so much he rang Lynch up to ask if he could borrow it. Tony never asked, but he borrows it constantly.
Jesse Livermore worked it out the hard way a century ago. “It never was my thinking that made the big money for me. It always was my sitting.”
So do we just hold everything forever and hope for the best? No. This is the part that separates QAV from a hunch.
We sell. We sell all the time. We just don’t sell because a number got big, or a chart looks toppy, or our palms are sweaty. We sell when the rules tell us to. NWH has a three-point sell trend line, and right now the stock is sitting a long way above it. As Tony said on the show, it would have to fall a long way from here before that line breaks. Until it does, we hold. If it does, we’re out. No debate, no attachment. Just rules.

That is the whole trick. The decision to sell is made by the method, not by me, and definitely not by someone on TikTok telling me you can’t go broke taking a profit.
And if you’re worried about how much you’d lose while the price drops down through that sell line, I get it. But we’ve done backtesting of our rules and found that, more often than not, they make us money. Sure — sometimes things would have worked out better if we’d sold earlier, or not sold at all. But statistically, it goes well for us more often than it doesn’t. They only need to work for us 51% of the time to pay off.
One thing worth being clear about, because it matters. Holding NRW and buying NRW are two completely different decisions. At these levels it’s a Josephine, it’s well above our valuation, and it is absolutely not a buy today. If you don’t own it, this is not me telling you to go and get some. Tony’s pulled pork was a look at a stock that has already done its job. But if you got in early, back when it was boring and cheap and nobody was writing it up, then the question was never “how much profit should I grab.” The question is “has my sell rule triggered.” It hasn’t.
The financial press now running glowing profiles of NRW and MacMahon had nothing positive to say about these stocks when they were cheap and we were buying them. They tend to discover a winner right about the time we’ve already made our money on it.
The discipline in this game isn’t in the buying. Anyone can buy. The hard part, the part that actually compounds, is the sitting. Holding a good stock through the noise, past the point where cashing out feels clever, until the rules and only the rules tell you the run is done. To paraphrase Jerry — anyone can TAKE a position, but do you know how to HOLD a position?
Okay so.… maybe no one ever went broke taking a profit. But “not going broke” is not the goal. Maximising returns — that’s the name of the game.
QAV Myth Killers is a weekly column in the QAV newsletter, taking apart a piece of
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