Eurusd Seasonality Suite

27 Years of EUR/USD History. Seasonal Projections. London Fix Research. Historical Probability Analysis.

The complete EUR/USD seasonality toolkit, with 27 years of real EUR/USD history built in, forward-looking seasonal projections, London fix and calendar research, and percentages measured directly from historical EUR/USD prices.

EURUSD Seasonality Suite shows you directly on your chart how EUR/USD has historically behaved at this time of year, during this week of the month, on this weekday, and around the London 4 pm fixing.

Every percentage is calculated using real EUR/USD data, with historical sample sizes available for verification.

BUILT-IN DATA — NO DOWNLOADS REQUIRED

Most seasonality tools depend on your broker's historical data, which may cover only a few years or contain significant gaps.

EURUSD Seasonality Suite includes its own historical EUR/USD archive:

• Daily history: January 1999 – 2026, beginning with the launch of the euro.

• Hourly history: May 2003 – 2026, approximately 147,000 hourly bars.

• Automatic updates: Continues using your broker's live data, avoiding overlapping records and double-counting.

Only actual EUR/USD prices are used. No synthetic pre-euro reconstructions.

1. TRUE YEARLY SEASONALITY — FIVE HISTORICAL LOOKBACKS

A dedicated indicator sub-window displays the historical seasonal path of EUR/USD throughout the calendar year.

Available lookback periods:

• 2 years

• 5 years

• 10 years

• 20 years

• Full available history (MAX)

Main features:

• Historical calculations exclude future data to avoid look-ahead bias.

• Choose between smooth seasonal lines and brick-style visualization.

• Supports all chart timeframes from M1 to MN.

2. SEASONAL PROJECTIONS AHEAD OF PRICE

See historical seasonal tendencies projected directly into the future area of your price chart.

• Seasonal paths extend to the right of the current price as dotted projection lines.

• Each projection displays its historical agreement percentage, showing how often the corresponding calendar window moved in the projected direction.

• Higher historical agreement is represented by thicker projection lines, making stronger historical tendencies easier to identify.

This allows you to compare multiple historical lookbacks without switching between charts.

3. RESEARCH BAND — DIRECTIONAL ARROWS AND PERCENTAGES

A dedicated research band at the bottom of the price chart highlights upcoming calendar events and historical directional tendencies.

Research includes:

• London 4 pm Fix: Historical behavior before and after the fixing, with separate statistics for ordinary trading days, month-end and quarter-end.

• ECB Reference Rate: Historical tendencies around the Frankfurt reference-rate fixing.

• Turn of Month: First and last trading day of each month.

• Weekday × Hour: Historical directional tendencies for individual weekdays and trading hours.

• Month of Year: Seasonal tendencies visible on D1 and higher timeframes.

London Fix Signals

London fix markers appear when at least one analyzed hour meets the minimum historical threshold of 55%.

Example:

M-end | −2h UP 58% | +2h DN 56%

This indicates historical upward frequency two hours before the fixing and downward frequency two hours afterward.

London fixing and turn-of-month effects have been examined in academic financial research. The suite measures these tendencies using actual EUR/USD price history.

4. CALENDAR INTELLIGENCE — HISTORICAL DIRECTION AT A GLANCE

Historical directional information is displayed inside the seasonal sub-window, beneath the corresponding day, week and month labels.

Probability display:

• 70% and above: Highlighted directional arrow with bold percentage.

• 60–69%: Directional arrow with percentage.

• 55–59%: Small grey percentage.

• Below 55%: Hidden to reduce visual clutter.

This keeps the chart focused on stronger historical directional frequencies.

5. CLEAN CHART DESIGN AND PREMIUM VISUALIZATION

Designed to display detailed seasonal research without overwhelming the price chart.

• Chart elements remain aligned when zooming or scrolling.

• Labels are arranged to minimize overlap.

• Stronger historical signals receive priority when chart space is limited.

• Candlesticks remain visible above the research band.

• Premium light and dark visual themes.

• Optional display settings for a more minimalist chart.

KEY SETTINGS AND CUSTOMIZATION

Seasonal Models

Annual (default), Intraday, Intraweek and Intramonth.

Visual Appearance

Smooth lines or bricks, adjustable thickness, colors and projection visibility.

Historical Signal Thresholds

• 60% — directional arrows

• 55% — London fix signals

• 70% — highlighted high-agreement signals

All thresholds are adjustable.

Seasonal Line Behavior

Shape, cumulative movement or restart at the beginning of each seasonal cycle.

Rollover-Hour Filter

Optional filtering of spread-related artifacts around the daily broker rollover.

INSTALLATION AND REQUIREMENTS

• Designed specifically for EURUSD charts.

• Supports broker symbol suffixes.

• Manual symbol selection available for unusual broker naming conventions.

• No DLL files required.

• No internet connection required.

• No additional data downloads.

• One indicator file — simple installation.

IMPORTANT INFORMATION

All displayed percentages represent historical directional frequencies, calculated from completed EUR/USD trading sessions before transaction costs.

They are not guaranteed probabilities of future market movements.

Seasonal patterns may change over time, and historical performance does not guarantee future results.

The EURUSD Seasonality Suite is designed as a research and decision-support tool. Use its information alongside your own market analysis, trading strategy and risk management.