Not reliably. A death cross—the 50-day moving average falling below the 200-day—shows that recent prices have weakened relative to a longer trend. It is a backward-looking signal, not proof that a stock or index will keep falling. Historical results vary by market, time period, measurement and forecast horizon.
What a death cross tells you—and what it does not
In the conventional definition, a death cross occurs when a security’s 50-day moving average crosses below its 200-day moving average. The averages are calculated from past prices, so the cross records a change in trend after some weakness has already occurred. It does not identify a cause of the decline or guarantee what happens next.
As an Amazon Associate I earn from qualifying purchases.
The signal can also arrive late. Reuters’ 2025 analysis of LSEG data found that, in 54% of cases in its roughly 50-year S&P 500 sample, the index had already reached its maximum intraday decline before the death cross. Nasdaq Dorsey Wright noted another timing effect: as older highs roll out of the averages, the averages can continue falling even after a rebound has begun.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
What historical S&P 500 results show
There is no single timeless probability attached to a death cross. The figures below measure different outcomes, so they should not be treated as interchangeable forecasts.
#1 Best Overall
- Charting and Technical Analysis
- Stock Market Trading
- Stock Market Anaylsis
- Technical Analysis for Stocks
- investing
| Analysis | Reported result | What it measures |
|---|---|---|
| Reuters analysis of LSEG data, reported in 2025 | Selloffs worsened after the cross in 46% of cases; in those cases, the average further decline from the cross was 19%. | Whether a decline worsened after the signal, and the average decline among those worsening cases—not the average outcome of every signal. |
| Bank of America technical strategist Paul Ciana, as reported by Reuters in 2025 | At 20 trading days, the S&P 500 was down 52% of the time and averaged a 0.5% loss. At 30 trading days, it was higher 60% of the time and averaged a 0.8% gain. | Short-horizon outcomes in a note that Reuters said analyzed nearly 100 years of data. These are Ciana’s reported figures, not an independently reviewed underlying note. |
| Nasdaq Dorsey Wright, 1929–2019, reported in 2020 | Average drawdown: 12.57%; median: 7.75%; maximum: 78.84%. | Decline from the death-cross close to the lowest close before the 50-day average crossed back above the 200-day. |
| Nasdaq Dorsey Wright, 1950 onward, reported in 2020 | Average drawdown: 10.37%; median: 5.38%; maximum: 53.44%, in 2008. | The same signal-episode drawdown measure, restricted to 1950 onward. |
These measures answer different questions. A drawdown to the eventual low before the averages recross is not the same as the index’s return 20 or 30 trading days later. Nor does a statistic from a particular historical sample establish the odds for a future signal.
Some signals preceded severe bear markets: Reuters cited ultimate declines of 21%, 45% and 55% after signals associated with 1981, 2000 and 2007. Those episodes show that a death cross can occur during a major downturn; selecting them alone would omit rebounds and false alarms. LPL Financial chief technical strategist Adam Turnquist told Reuters in 2025: “It’s a very ominous sounding signal in equity markets, but when you actually back-test the death cross throughout history, you’re better off a buyer than a seller on the death cross.” That is an analyst’s interpretation of historical backtests, not a dependable rule or investment recommendation.
Rank #2
- Language: english
- Book - trading: technical analysis masterclass: master the financial markets
- It is made up of premium quality material.
What the individual-stock evidence says
An index study cannot by itself answer whether a death-cross stock is likely to underperform other stocks. Opulence Alpha Research’s September 25, 2026 study compared US stocks with a death cross against the median stock on the same date. Death-cross stocks beat that benchmark 49 times in 100 over the next month and 51 times in 100 over the next three months—roughly even results, not evidence of reliable relative outperformance or underperformance.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallThe study says it tested eight horizons for golden and death crosses and none met its stated threshold for a proven relation. Its fixed universe included 1,767 US common stocks; it covered 1,763 of them across 1,634 Wednesdays from January 4, 1995, through August 19, 2026, totaling 1,889,758 stock-weeks. It used adjusted closes for splits and dividends, counted the cross on the event Wednesday, and did not add delisting returns. The authors disclose survivorship bias in the outside-index stratum, a limitation that matters when interpreting results for individual stocks.
Relative performance is not the same as an absolute gain or loss. A stock can decline and still outperform the same-date median, or rise while underperforming it. The study’s near-even relative results therefore do not mean that every signal stock was flat or that no individual stock fell sharply.
Why studies disagree
“Does it predict a decline?” can mean several things: whether an index falls over a chosen number of days, how far it declines before a reverse cross, whether a signal stock beats other stocks, or whether a trading strategy makes money. Different answers can all be accurate when they use different definitions.
Rank #4
- Used Book in Good Condition
- Universe: An S&P 500 index event is not the same as a study of individual stocks. Current-stock-only samples can also omit delisted companies.
- Signal definition: Studies may use daily closing prices or intraday prices, simple or exponential averages, and one event day or every day the condition persists.
- Outcome and benchmark: Absolute returns, the chance of being down, drawdown through a signal episode, and performance versus a same-date median measure different things.
- Horizon and sample period: A next-month result can differ from a three-month result or a measure ending at a later reverse cross. Results also change with the bear markets, sideways periods and recoveries included.
- Implementation: A backtest’s returns depend on whether it includes dividends, transaction costs and slippage, and whether it assumes a trade can be made at the signal close. Cash exposure and short exposure are not equivalent strategies.
- Study design: Repeated or overlapping observations, survivorship bias, multiple testing and choices made after viewing results can affect apparent relationships.
Research on moving-average strategies addresses a related but distinct question. A trading rule that switches positions based on averages may have different returns from simply measuring what stocks did after a cross. The CFA Institute’s 2022 review discusses volatility and skewness risks in historical moving-average results; Reschenhofer’s 2020 review emphasizes nonstationarity, period selection and transaction costs. Neither type of strategy result should be recast as a universal probability that a death-cross stock will fall.
Free tools Windows power users keep installed
One-click scans. No signup required.
Common mistakes when reading the signal
- Calling confirmation a forecast: The cross reflects prices that have already happened; it can follow much of a decline.
- Using famous crashes as the whole case: Severe episodes matter, but they do not show what happens on average unless less dramatic outcomes are counted too.
- Confusing drawdown statistics with trade returns: Measuring the low before a reverse cross does not establish what a real investor could have earned after execution costs.
- Ignoring whipsaw: In a choppy market, a trend rule can exit and re-enter repeatedly. A long-term average does not guarantee lower risk in every regime.
- Mixing absolute and relative performance: Falling less than peers is outperformance, even if the stock still lost value.
- Treating historical averages as personal advice: A backtest does not account for an investor’s time horizon, risk tolerance, portfolio or current market conditions.
How to use a death cross in context
Use the cross as one descriptive indicator of trend, not as a standalone instruction to sell or short. Before relying on a claim about what follows one, check the underlying study’s market or stock universe, signal definition, outcome, horizon, sample dates and execution assumptions. The historical evidence supports a cautious conclusion: death crosses sometimes precede further losses, but they do not reliably predict a stock decline on their own.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
