Seasonality
Seasonality in trading refers to recurring market patterns that tend to happen around the same time each year, month, or even week. These patterns are based on historical tendencies, for example, certain stocks or indices often rise or fall during specific periods due to consistent economic, institutional, or behavioral factors.
A simple example:
The S&P 500 often performs stronger in the last quarter of the year (“Santa Rally”).
Crude oil prices tend to rise during summer months when demand for fuel increases.
Agricultural commodities follow planting and harvest cycles.
By analyzing these seasonal trends, traders can gain an additional layer of probability in their decision-making. It doesn’t replace technical or fundamental analysis, but it complements them by showing when a market historically tends to move in a certain direction.
That’s why a seasonality indicator can be extremely useful:
It visualizes past performance patterns directly on your chart.
It helps identify periods of high or low probability for bullish or bearish moves.
It allows traders to align trades with statistical tendencies, not just current price action.
You can also customize the lookback period, for example, view seasonal patterns from the last 5, 10, 15, or 20 years, depending on how much historical data you want to include.
In short, a good seasonality indicator doesn’t predict the future, it highlights what markets tend to do, helping traders act with more context and confidence.
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Author's instructions
Disclaimer
Invite-only script
Only users approved by the author can access this script. You'll need to request and get permission to use it. This is typically granted after payment. For more details, follow the author's instructions below or contact SDprof directly.
TradingView does NOT recommend paying for or using a script unless you fully trust its author and understand how it works. You may also find free, open-source alternatives in our community scripts.