4 Lessons on When to Sell $400,000 Worth of Stock in an Unpredictable Market
Tools and pearls of wisdom for framing and managing risk; knowing when to sell stock and when to hold; and keeping emotions at bay.
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My friend, Matt emailed me on a Friday afternoon. He had just “come into” 4,500 shares of stock in a hot software company, Siebel Systems — a $450,000 windfall!
A startup company he used to work for had been acquired by Siebel. It was entirely unexpected, but Matt’s stock from the startup would be converted into Siebel stock and was going to be worth something.
Matt wanted to ask for my advice about buying stock options as insurance in case Siebel’s stock price went down. The Siebel stock would be deposited into his brokerage account three days later on Monday morning.
We made plans to meet for lunch on that Monday.
But it was clear to me that he had asked the wrong question.
Quick background
Matt (not his real name) had just finished graduate school a few years earlier. He still had $40,000 in student loan debt, and he had no real assets other than his bi-weekly paycheck.
By that time we were planning lunch, the “dot-com bubble” in tech stocks was 9 months into popping and deflating. Since its all-time intraday high in mid-March 2000, the NASDAQ had dropped by 43%. High-flying tech stocks were regularly seeing their valuations slashed during those 9 months.
The day we had lunch — Monday — Siebel stock closed around $94, down $7 from Friday’s close of $101.
That meant that as of Friday’s close of market, Matt’s 4,500 shares of SEBL were worth $454,000. And by the time we were in the middle of lunch (on the west coast) and the market had closed, his 4,500 shares were worth about $424,000.
Given the drop, Matt was even more interested in buying put options for “insurance” in case the stock went down.
My initial analysis
By the second half of 2000, all it took for a stock to fall overnight by 30% or more was missing earnings estimates by as little as a penny.
Quarterly earnings for SEBL stock were due to be released several days after our lunch. It had been a tough 9 months for tech stocks, and there seemed to be real potential for Siebel stock to go down.
Prior to our lunch, I took a look at the pricing for Siebel put options. There were two immediate problems.
- Only short-term options were available — no more than 6–9 months into the future. The protection wouldn’t be for very long, and then Matt would need to buy puts all over again.
- The second problem was that the pricing of the options was quite expensive even on the March options.
The recommendation I planned to give to Matt at lunch on Monday
Sometimes in life, it’s hard to see through the fog in a given the situation and know what the right answer is.
This was not one of those times. This time it was easy to see the right answer:
(1) Sell it all and (2) do so as soon as the stock was in his brokerage account and he was able to sell.
- Don’t worry about the price.
- Don’t try to micro-time it or wait a few days or weeks to see what would happen.
- Sell. it. all. now.
Knowing when to sell and when to hold
People tend to have good instincts about when to buy.
But they struggle with decisions about whether and when to sell.
Part of the reason is that once you own stock or another asset, it’s easy for your emotions to get tangled up in decisions about selling or holding.
The emotion of wanting your stock to go up and to not look like a fool if you sell at a loss makes it difficult to approach this decision with a clear head.
A mental trick to remove emotion from a “sell or hold” decision
The most useful mental tool I’ve figured out to help make the “sell or hold” decision is to imagine that you are 100% in cash and considering buying the position that you already hold now.
Essentially, transform the decision from (1) a “sell or not” decision that you are going to struggle with into (2) a “buy or not” decision that you can probably be more clear-headed about.
So if Matt didn’t already have those 4,500 shares that would cost $423,000 to buy on the day that we had lunch and if he had the cash sitting in his bank account, would he feel compelled to make that purchase? Would he really, really feel compelled to buy?
1. If the answer is “yes, he would feel compelled to buy that stock today,” then it probably makes sense to go ahead and continue to just hold the position. In other words, don’t sell.
2. But if the answer is, “Hell, no! If I had cash in the bank right now, there is no way I would go and buy that stock today at this price!” then that is at least a yellow flag to consider selling. And it might actually be a loud siren to go and get out of the stock as quickly as possible.
Now let’s apply this mental tool to Matt’s situation
When I thought about this from Matt’s perspective, it was clear to me in an instant that if he had $40,000 in student loan debt and $470,000 in the bank, there was no chance — ZERO chance — that he would take all of that money and:
- not only put it all in the stock market which had been doing lousy for the past nine months,
- not only put all of it into a single sector of the stock market,
- but go and put all of that money into a single stock.
Nobody in their right mind would do that.
The only way you might do it is if you had a strong conviction that you were seeing something about that company that the rest of the market wasn’t seeing or was undervaluing.
And Matt had no such strong conviction.
So what happened at lunch on Monday?
We sat down to lunch at the Fog City Diner in San Francisco. Matt reviewed the situation to make sure we were both on the same page.
Then I walked through (1) why I thought it didn’t make sense to buy options and (2) why it made sense to sell all of his stock at the market open the next morning.
You can imagine my shock when his answer back to me was, “but if I sell, I’ll lose $31,000 from where the stock was on Friday! I can’t sell!”
My appetite for food evaporated. Lunch just became a lot less enjoyable.
Matt was a finance major at one of the top business schools in the U.S. So I assumed that we were going to discuss this from a business/intellectual perspective and in a cold-blooded, ruthless way about whether to sell or hold.
I probably shouldn’t have assumed that because . . . well, I’ll let a classic TV scene explain why:






