What Market Seasonality measures

How each calendar month has historically performed for the S&P 500, NASDAQ, gold, silver and Brent oil — win rate, average return, and the count of bullish versus bearish years for that month in each asset.

How to read a seasonal edge

Read win rate and average return together. A high average driven by one extraordinary year is not an edge; a modest average with a consistent win rate across many years is more meaningful. The number of observations matters as much as the number itself.

How traders use seasonality

As a background weight, never as a trigger. A favourable month is a mild reason to prefer long setups when other analysis already agrees; it is not a reason to buy on the first of the month. Seasonal patterns also decay as they become widely known.