Official MCP RegistryListed
The Market Calendar
Market seasonality by day, window and month for S&P 500, Nasdaq, Dow, Bitcoin, gold and oil.
First seen 18 Oct 2026. Evidence as of 18 Oct 2026.
8
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| day_seasonality | How an asset has done on a calendar date (e.g. 12-26) across all years: average return, share of years up, and its rank among all calendar days. | Read-only |
| economic_calendar | Scheduled US economic releases (FOMC, CPI, jobs, PCE, GDP, PPI, retail sales, ISM, JOLTS) in a date range, with US Eastern times. | Read-only |
| list_assets | List the markets covered (S&P 500, Nasdaq, Nasdaq-100, Dow, Russell 2000, Bitcoin, Ethereum, crude oil, gold) with their data start dates. | Read-only |
| month_detail | Deep dive on one month for one asset: average, median, % of years up, rank among the 12 months, recent years, the cumulative seasonal path through the month, and its strongest/weakest days. | Read-only |
| monthly_seasonality | Average and median return, share of years up, best and worst year for each calendar month of an asset. Use for 'what's the best month for X', 'is September bad for stocks'. | Read-only |
| seasonal_pattern | Statistics for well-known S&P 500 calendar effects: santa-claus-rally, sell-in-may, september-effect, best-days-of-the-year, worst-days-of-the-year, turn-of-the-month, presidential-cycle, january-barometer. | Read-only |
| seasonal_trends | The bullish and bearish seasonal stretches for an asset in a given year, as shown on The Market Calendar. | Read-only |
| window_seasonality | Every past year's return over a calendar window (start and end MM-DD in the same year), with average, median, % of years up, best and worst years. Use for 'how does X do from Dec 15 to Dec 31'. | Read-only |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | tech.marketcalendar/seasonality | 18 Oct 2026 | 18 Oct 2026 | 1 |