You log in to your 401(k) and the balance is down $8,000 from last month. The news is all red arrows. You start doing the math on how much more you could lose, and a thought gets louder every day: sell now, protect what's left, buy back in when things calm down.
That feeling is normal, and it's not stupid. It's your brain trying to stop a loss. The problem is that selling during a drop usually doesn't stop the loss. It makes it permanent, and then it adds a second, harder decision: when to get back in. This article walks through what selling actually costs, what to do instead, and how to check that your plan is still running.
Why selling turns a paper loss into a real one
While you still own your funds, a drop is a change in price, not a change in what you own. You hold the same number of shares you held last month. They're just worth less today.
Here's an example with made-up but realistic numbers. Say you have $50,000 in a stock index fund at $100 a share, so you own 500 shares. The market falls 30%, and the fund drops to $70.
- If you hold: you still own 500 shares, worth $35,000. If the price gets back to $100, you're back to $50,000.
- If you sell at $70: you have $35,000 in cash and zero shares. To get back to $50,000, that cash now needs to grow by about 43% ($15,000 ÷ $35,000). And if you wait until prices "feel safe" again, at, say, $95, your $35,000 buys only about 368 shares instead of 500.
That's the trap. To come out ahead by selling, you have to be right twice: sell near the top of the drop and buy back near the bottom. Most people who sell in a panic get the first one wrong (they sell after much of the fall already happened) and the second one wrong too (they wait for good news, which tends to arrive after prices have already bounced).
What past drops and recoveries looked like
Nobody can tell you how long the next downturn will last, and recoveries have ranged from months to years. Two recent examples show how different they can be.
In the 2007–2009 financial crisis, the S&P 500 fell about 57% from its October 9, 2007 peak to its March 9, 2009 low. It didn't close at a new record until March 28, 2013, more than five years after the old high.
In 2020, the index dropped about 34% between February 19 and March 23, the fastest bear market on record, then closed at a new all-time high on August 18, 2020, only about six months after the old peak.
Notice what those two have in common: the worst headlines landed near the bottom, and a big part of the rebound happened while things still looked grim. Someone who sold in March 2009 or March 2020 and waited for the all-clear missed much of the recovery. Past recoveries don't guarantee future ones, but they do show why "I'll get back in once things settle down" is so hard to pull off.
What to do instead while prices are falling
Doing nothing feels passive, so here are the useful things you can do.
- Sort your money by when you need it. Money you'll need within the next few years shouldn't be in stocks in the first place. If a downturn exposes that your house down payment is in an index fund, that's a real problem to fix, and matching each goal to its time horizon walks through how. Money for retirement 20 years out has time to wait.
- Make sure your cash cushion is real. People panic-sell most often when they're afraid they'll need the money. A funded emergency account means a layoff or car repair doesn't force you to sell at a low price. If you don't have one yet, building your first emergency fund is the next step, and you can build it from new paychecks without selling anything.
- Keep your contributions going. If you put in $500 a month and the fund drops from $100 to $70, that same $500 buys about 7.1 shares instead of 5. You're buying more of the same thing at a lower price.
- Rebalance if your plan calls for it. If you aim for 80% stocks and 20% bonds and the drop has pushed you to 72/28, moving back to 80/20 means buying stocks while they're cheaper. It's the opposite of panic selling, done on a schedule.
- Write down your rule now. Something like: “I don't sell investments for money I won't need for five years or more, no matter what the market did this month.” A rule written before the drop is easier to follow than a decision made during it.
Check that your plan is still running
After a scary month, spend ten minutes confirming nothing changed without you meaning it to.
- Your contribution rate. Look at your latest pay stub for the 401(k) deduction line. It should show the same dollar amount or percentage as before. If you're getting an employer match, check that the match still shows up on your plan's statement, usually labeled “employer contributions.”
- Your fund lineup. On your plan or brokerage site, open the holdings or positions page. You should see the same funds you chose, not a sudden move into a money market or stable value fund. Also check the “pending transactions” or “order status” page to make sure there's no sell order you started and forgot to cancel.
- Your allocation. Compare your current stock/bond split to your target. If it's more than about five percentage points off, that's your rebalancing signal.
Then check again at your normal interval, quarterly or even twice a year. Checking daily during a downturn doesn't give you new information. It just gives the urge to sell more chances to win.
Moves that make a downturn worse
- Stopping your 401(k) contributions to “wait it out.” You stop buying at lower prices, and if your employer matches, you give up the match too. That's free money you never get back for those pay periods.
- Switching everything to a bond fund because it feels safe. Bond funds can lose money too, sometimes at the same time as stocks. Why your “safe” bond fund lost money explains how that happened in 2022.
- Selling in a taxable brokerage account without checking your gains. If you bought years ago, selling can create a capital gains tax bill even in a down year, so you lose market exposure and pay tax for the privilege.
- Trying to catch the bottom. Waiting for prices to fall “just a little more” before buying again often means watching from the sidelines as they rise.
- Picking investments you can't hold through a drop. If a 30% decline would make you sell no matter what, your stock allocation is too high for you. Lower it on purpose, when markets are calm, not in the middle of a slide.
A downturn is when your plan gets tested, not when it should be rewritten. If the money is long-term, the cushion is in place, and the contributions are still going in, the most useful thing you can do is let the plan keep working.