Should I Average Down on a Stock That’s Down 40%?
A lower price makes a stock look cheaper, but it says nothing about whether the business is worth more than you paid. Here is how often big decliners came back, how to re-check the thesis, and when cutting the loss makes more sense.
Key takeaways
- Only if you would buy it fresh today at the new, larger size. Of 669 US stocks that fell 40% or more within five years, 41.4% still showed a five-year loss and only 27.7% beat the S&P 500 (Exent’s data).
- A 40% fall needs a 67% gain just to get back to even.
- Averaging down raises your position size. Set a limit on the total you will put into one stock, at cost, before the next drop.
- Cutting a loss in a taxable account can lower your tax bill: net losses offset gains and up to $3,000 a year of ordinary income, but a repurchase within 30 days triggers the wash sale rule.
Should I average down on a stock that’s down 40%?
Average down only if the reason you bought is still true and you would buy the stock today, at the larger size the purchase would create. The lower price on its own is not a reason. Markets usually mark a stock down because something changed: earnings, guidance, competition, debt or interest rates.
The math also works against you. A 40% fall needs a 67% gain to get back to even, and a 60% fall needs 150%. See loss recovery math. Averaging down lowers your average cost, which feels like progress, but your break-even only matters to you. The market does not know what you paid.
How often do stocks that fall 40% recover?
Many do, but fewer than hope suggests. In Exent’s data on 992 US stocks with five years of history to September 30, 2026, 669 fell 40% or more from a peak at some point in those five years. Of those, 277 (41.4%) still showed a loss over the five years, and 185 (27.7%) beat the S&P 500’s 89.1% total return.
That count covers only companies that are still large today. Firms that collapsed, were delisted or shrank out of the list are missing, so the true odds were worse. Individual cases show the range:
| Stock | Largest drop, 5 years | Total return, 5 years |
|---|---|---|
| NVIDIA (NVDA) | −66.3% | +1,004% |
| Meta (META) | −76.7% | +115% |
| DocuSign (DOCU) | −86.4% | −74% |
| PayPal (PYPL) | −87.3% | −80% |
| Nike (NKE) | −74.6% | −74% |
| Zoom (ZM) | −86.2% | −65% |
Long-run research points the same way. Hendrik Bessembinder’s 2018 study found that 58% of US stocks since 1926 failed to beat Treasury bills over their lifetimes. A falling stock is not guaranteed to come back.
How do I re-check the thesis before buying more?
Re-underwrite the business, not the price. Pretend you do not own it and answer these in writing. If you never wrote the original thesis down, start with how to write an investment thesis.
- What exactly caused the fall: the whole market, the sector, or news about this company?
- Have revenue, margins or guidance changed, or only the price?
- Is the balance sheet strong enough to get through a bad two years without raising money?
- Have analysts cut estimates, and have insiders been buying or selling since the drop?
- Is the stock cheap for a reason that will not go away? See value traps.
- If you held cash instead, would this be your first choice for the money?
Our guide to value traps covers the cheap stocks that keep getting cheaper.
How much should I add, if I add at all?
Set a cap on the total money you will commit to one stock, measured at cost, and decide it before the next drop. Illustrative: in a $1,000,000 portfolio you bought $50,000 of a stock, now worth $30,000. Adding another $50,000 makes it an $80,000 position, about 8% of the portfolio, with $100,000 at risk in one company. If it falls another 40%, the position loses $32,000 more.
Some investors add in fixed steps, for example in thirds, after new results confirm the thesis, rather than all at once after a drop. The same limits that apply to a new idea apply here. See position sizing.
When is it right to cut a losing stock?
Cutting a loser makes sense when the thesis is broken, when a better use of the money exists, or when the position is still too large for the risk it now carries. Common triggers:
- The reason you bought is gone: the product failed, growth stalled, management changed the plan, or debt became a threat.
- You would not buy it today: holding is a decision to own it, made every day.
- You are holding only to get back to even: that is your cost, not the company’s value.
Taxes can soften the blow in a taxable account. Under IRS Topic 409, capital losses offset capital gains, and net losses can reduce ordinary income by up to $3,000 a year ($1,500 if married filing separately), with the rest carried forward. This is tax-loss harvesting.
Watch the wash sale rule. Under IRS Publication 550, buying the same or a substantially identical security within 30 days before or after the sale, including in your IRA or Roth IRA, disallows the loss for now. The disallowed loss is added to the cost of the new shares.
How to re-check a losing position with Exent
- Upload a screenshot or file of your holdings (CSV, Excel, PDF or Google Sheet); no brokerage login.
- Cost basis and P&L show what you paid and the loss on each position; the holdings scorecard rates each one.
- See how top‑rated analysts and company insiders have acted on the stock, then test adding or selling in the what‑if simulator.
Frequently asked questions
It works only when the business is still sound and the larger position fits your limits. Averaging down because the price fell, without re-checking the thesis, can turn a small loss into a large one.
Many do, but not most by enough to beat the market. In Exent’s data, of 669 US stocks that fell 40% or more within five years, 41.4% still showed a five-year loss and 27.7% beat the S&P 500.
It needs to rise about 67% to get back to the original price. After a 50% fall it needs 100%.
Investors usually cut when the reason they bought no longer holds, when they would not buy it today, or when the money has a better use. Holding only to get back to even is a common trap.
Yes, but if you buy the same or a substantially identical security within 30 days before or after the sale, the wash sale rule disallows the loss for now. The loss is added to the cost of the new shares.
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Educational content, not investment advice. Examples are illustrative; past performance does not guarantee future results.