When To Sell A Stock: Cutting Losses Short Is The First Rule (2024)

How do you know when to sell a stock?

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You may think owning stocks is all about making money. True, you may be looking for capital appreciation, but if you lose more than you gain, it is all for naught. Top priorities should be to manage risk, preserve capital and take losses quickly.

When To Sell And Take A Loss

According to IBD founder William O'Neil's rule in "How to Make Money in Stocks," you should sell a stock when you are down 7% or 8% from your purchase price, no exceptions. Having a rule in place ahead of time can help prevent an emotional decision to hang on too long.

It should be: Sell now, ask questions later. By limiting losses to 7% or even less, you can avoid getting caught up in big market declines.

Some investors may feel they haven't lost money unless they sell their shares. They hold on with the hope it goes back up so they can break even. But it's still a loss if the current price is below your purchase price.

You may ask the rhetorical question: How low can it go? Actually, it can go to zero.

Ask yourself: Would I buy this stock, right here, right now? If the answer is no, sell it. The time you spend waiting and hoping it will come back, is an opportunity cost to deploy the capital elsewhere, O'Neil advised.

It Takes More To Come Back When You Sell A Stock Too Late

The more a stock falls, the more ground it has to recoup.

If you purchased a stock for 100 and it drops to 90, that's a 10 point drop representing a 10% loss. It looks like you have to make up 10 points to be back to even. But that same 10-point move now represents 11.1% of the now-90 stock. Therefore, you need to have an 11.1% gain, not just 10%.

If it drops further to 80, that 20 move equals a 25% gain you must achieve to get back to break even, and so on. The percentage decline accelerates as you lose more.

You can see how this can get ugly fast.The key is to stop the bleeding, cut your losses and move on.

Domino's Hits A Sell Signal

When To Sell A Stock: Cutting Losses Short Is The First Rule (1)Domino's Pizza (DPZ) broke out of a flat base Dec. 27, 2021 (1). Shares climbed only 3% above the 549.51 buy point before they started to roll over.

On Jan. 5, Stephens & Co. downgraded DPZ to underweight from equal-weight with a price target of $500, adding to the drop in the stock which started Jan. 3. The stock picked up downward momentum on Jan. 4 with a 28% spike in volume. It continued to drop, falling below the 50-day moving average. on Jan. 5.

It closed at 520.53 on Jan. 5, down 8.3% from the high (2). This was the time to sell. On Jan. 11, Domino's cited "unprecedented" expected increased food costs of 8%-10% in 2022. A few days later, Morgan Stanley downgraded Domino's from overweight to equal-weight, and cut its price target from 545 to 535.

It continued it's drop to a low of 321.15 on May 12, 2022 for a total decline of 43.4%, peak to trough. You could have avoided this massive decline, if you sold using the 8% sell rule.

You Don't Always Have To Be Right When You Sell A Stock

According to Bernard Baruch, a famous Wall Street investor, you only need three to four winning trades out of 10 to make a healthy overall return.

By following a 3-to-1 ratio of gainers to losers, if you have a 25% gain, you can allow up to an 8% loss, and no more. If in an unfavorable market and your winners are only up 10% to 15%, you need to cut losses sooner. This would amount to only 2%-3% down, to keep the ratio intact.

All this sounds good, but in practice it can be hard to admit you're wrong. Trading is an emotional activity filled with ego and the desire to be right. The key is to be steadfast and disciplined in following your rules so you can be around to trade another day.

This article was originally published April 20, 2023, and has been updated.

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When To Sell A Stock: Cutting Losses Short Is The First Rule (2024)

FAQs

When To Sell A Stock: Cutting Losses Short Is The First Rule? ›

A good rule of thumb that most investors live by is to cut losses anytime a stock falls 5-8% below the price you purchased it at. The most important thing to remember is that the earlier you accept a loss, the more money you'll save in the long run.

What is the 3 5 7 rule in stocks? ›

What is the 3 5 7 rule in trading? A risk management principle known as the “3-5-7” rule in trading advises diversifying one's financial holdings to reduce risk. The 3% rule states that you should never risk more than 3% of your whole trading capital on a single deal.

What is the 3 5 7 rule in trading? ›

The 3–5–7 rule in trading is a risk management principle that suggests allocating a certain percentage of your trading capital to different trades based on their risk levels. Here's how it typically works: 3% Rule: This suggests risking no more than 3% of your trading capital on any single trade.

What is the 7% rule in stocks? ›

However, if the stock falls 7% or more below the entry, it triggers the 7% sell rule. It is time to exit the position before it does further damage. That way, investors can still be in the game for future opportunities by preserving capital. The deeper a stock falls, the harder it is to get back to break-even.

When should you sell a short stock? ›

Short sellers commonly look for opportunities during the following conditions: Bear Market: Traders who believe that “the trend is your friend” have a better chance of making profitable short-sale trades during an entrenched bear market than they would during a strong bull phase.

What is the 70 30 rule in stocks? ›

What Is a 70/30 Portfolio? A 70/30 portfolio is an investment portfolio where 70% of investment capital is allocated to stocks and 30% to fixed-income securities, primarily bonds.

What is the 11am rule in trading? ›

It is not a hard and fast rule, but rather a guideline that has been observed by many traders over the years. The logic behind this rule is that if the market has not reversed by 11 am EST, it is less likely to experience a significant trend reversal during the remainder of the trading day.

What is the 80 20 rule in stock trading? ›

In investing, the 80-20 rule generally holds that 20% of the holdings in a portfolio are responsible for 80% of the portfolio's growth. On the flip side, 20% of a portfolio's holdings could be responsible for 80% of its losses.

What is the 90% rule in stocks? ›

Understanding the Rule of 90

The Rule of 90 is a grim statistic that serves as a sobering reminder of the difficulty of trading. According to this rule, 90% of novice traders will experience significant losses within their first 90 days of trading, ultimately wiping out 90% of their initial capital.

What is the 10 am rule in stock trading? ›

Some traders follow something called the "10 a.m. rule." The stock market opens for trading at 9:30 a.m., and the time between 9:30 a.m. and 10 a.m. often has significant trading volume. Traders that follow the 10 a.m. rule think a stock's price trajectory is relatively set for the day by the end of that half-hour.

What is the short selling strategy? ›

Short selling involves borrowing a security whose price you think is going to fall and then selling it on the open market. You then buy the same stock back later, hopefully for a lower price than you initially sold it for, return the borrowed stock to your broker, and pocket the difference.

How does shorting work for dummies? ›

Short selling is—in short—when you bet against a stock. You first borrow shares of stock from a lender, sell the borrowed stock, and then buy back the shares at a lower price assuming your speculation is correct. You then pocket the difference between the sale of the borrowed shares and the repurchase at a lower price.

When should I cut my losses on a stock? ›

A good rule of thumb that most investors live by is to cut losses anytime a stock falls 5-8% below the price you purchased it at. The most important thing to remember is that the earlier you accept a loss, the more money you'll save in the long run.

What is the golden rule of stock? ›

2.1 First Golden Rule: 'Buy what's worth owning forever'

This rule tells you that when you are selecting which stock to buy, you should think as if you will co-own the company forever.

What is the 60 30 10 rule stocks? ›

This reinventive basic rule to portfolio structure means allocating 60% to equities, 30% to bonds, and 10% to alternatives. The exact percentages may vary by portfolio, but the key idea is that Alternatives should be an integral part of every portfolio, in some percentage.

What is 90% rule in trading? ›

Understanding the Rule of 90

According to this rule, 90% of novice traders will experience significant losses within their first 90 days of trading, ultimately wiping out 90% of their initial capital.

What is the 40 20 rule in stocks? ›

When it goes up another 40%, sell another 20%. This basically leaves you with 125% of the initial position and about 60% of your initial investment off the table.

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