Methodology

Overview

The Forint Index (FI) measures the overall strength of the Hungarian Forint (HUF) against a weighted basket of six major currencies. It provides a single number that captures whether the Forint is strengthening or weakening relative to its key trading partners and financial counterparts.

A value of 100 represents the baseline — meaning no change from the reference period. Values above 100 indicate a stronger Forint (fewer HUF needed per unit of foreign currency), while values below 100 indicate a weaker Forint.

Reference Period (Baseline)

The HUF-Index uses a rolling baseline, not a fixed historical date. The headline index value compares current rates to 30 days prior, so a reading of 100 means the Forint is unchanged versus one month ago.

In the interactive chart, the baseline is the first date of the visible range. This means switching from 1M to 1Y view will recalibrate the starting point. This approach emphasizes recent trends and momentum rather than deviation from a distant historical anchor.

Note: This differs from the U.S. Dollar Index (DXY), which uses a fixed March 1973 base of 100.00. Our rolling approach is more suitable for tracking short-to-medium term momentum.

Currency Basket & Weights

The index uses six currencies, weighted by their economic and financial importance to Hungary:

• EUR — Euro50%
• USD — US Dollar20%
• CHF — Swiss Franc10%
• GBP — British Pound10%
• PLN — Polish Zloty5%
• CZK — Czech Koruna5%

Weight rationale: EUR reflects Hungary's dominant trade relationship with the Eurozone (~65% of total trade). USD captures global commodity pricing and reserve currency dynamics. CHF accounts for Switzerland's role as a financial counterpart and the historical significance of CHF-denominated mortgages in Hungary. GBP represents the UK's financial sector linkage. PLN and CZK provide regional Central European (CEE) peer comparison, reflecting Hungary's close economic ties with neighboring EU members.

Calculation Formula

The index uses a weighted arithmetic average of percentage changes across all basket currencies:

When R_now is higher than R_ref (meaning 1 HUF buys more foreign currency), the percentage change is positive and the index rises — indicating a stronger Forint.

Note: Unlike the U.S. Dollar Index (DXY), which uses a geometric weighted product, the Forint Index uses an arithmetic weighted sum for simplicity and transparency. For typical exchange rate movements (±5%), the two methods produce very similar results.

Color Coding

All visual indicators follow a Forint-first perspective:

• Blue (+) — The Forint has strengthened
• Orange (0) — The Forint is stable
• Red (−) — The Forint has weakened

Data Sources

Exchange Rates: Sourced from the European Central Bank (ECB) via the Frankfurter API. Rates are updated daily on ECB business days.

Economic Indicators: Sourced from Eurostat, the official statistical office of the European Union. Indicators include GDP growth, inflation (HICP), unemployment rate, 10-year government bond yields, industrial production, government debt, and current account balance.

MNB Base Rate: The Hungarian National Bank (MNB) base rate schedule and rate history are maintained based on official MNB announcements.

Economic Factors

The Forint Strength Factors section analyzes 8 key macroeconomic indicators to determine overall pressure on the Hungarian Forint. Each indicator is classified as:

• ▲ Bullish — Supports a stronger Forint
• — Neutral — Limited impact on Forint direction
• ▼ Bearish — Suggests weakening pressure on Forint

The overall sentiment bar aggregates these signals to provide a composite view of fundamental pressure on the currency.

Classification is based on fixed threshold rules applied to each indicator's latest value. This approach prioritizes simplicity and consistency. It does not account for market expectations, consensus forecasts, or inter-indicator correlations.

Limitations & Disclaimer

This index is provided for informational and educational purposes only. Please be aware of the following limitations:

• Simplified model — The index uses a rule-based approach with fixed weights and thresholds. It does not incorporate market positioning, order flow, or forward-looking expectations.
• Rolling baseline — The index value resets relative to the comparison period. It measures recent momentum, not deviation from a long-term historical anchor.
• Equal indicator weighting — All economic factors are given equal importance in the sentiment analysis. In practice, GDP and inflation may have different impacts on currency movements than trade balance or government debt.
• Delayed data — ECB exchange rates are published once per business day. Eurostat economic indicators may lag by weeks or months depending on the release schedule.
• Not financial advice — This tool does not constitute investment advice. Currency markets are influenced by many unpredictable factors. Please consult a qualified financial professional before making investment decisions.