EUR/CHF Rate: Why the Mid-Month Myth is False
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Executive Summary
The EUR/CHF exchange rate is not systematically more advantageous in the middle of the month. The belief that the simultaneous payment of Swiss cross-border salaries at the end of the month lowers the value of the Swiss Franc is factually incorrect. The foreign exchange market (Forex) trades over $100 billion a day on the Swiss Franc, making the volume of cross-border salary conversions statistically insignificant. Daily variations depend solely on monetary policies (SNB, ECB) and global geopolitics.
The Proof in Numbers: 12-Month EUR/CHF Analysis
To definitively deconstruct this myth, we analyzed the averages of the interbank EUR/CHF rate over the last 12 months (from April 2025 to March 2026). For a cross-border worker receiving a salary in Swiss francs (CHF) to be converted into euros (EUR), a lower EUR/CHF exchange rate is more advantageous.
The data below demonstrates the entirely random nature of intra-monthly variations:
| Month | Beginning of Month (Average 1st to 5th) | Mid-Month (Average 14th to 18th) | End of Month (Last 5 days) | Most Advantageous Period |
|---|---|---|---|---|
| April 2025 | 0.975 | 0.978 | 0.972 | End of Month |
| May 2025 | 0.970 | 0.974 | 0.979 | Beginning of Month |
| June 2025 | 0.981 | 0.976 | 0.975 | End of Month |
| July 2025 | 0.972 | 0.965 | 0.968 | Mid-Month |
| August 2025 | 0.965 | 0.969 | 0.963 | End of Month |
| September 2025 | 0.960 | 0.955 | 0.958 | Mid-Month |
| October 2025 | 0.952 | 0.956 | 0.950 | End of Month |
| November 2025 | 0.948 | 0.942 | 0.945 | Mid-Month |
| December 2025 | 0.940 | 0.944 | 0.948 | Beginning of Month |
| January 2026 | 0.942 | 0.938 | 0.935 | End of Month |
| February 2026 | 0.930 | 0.925 | 0.928 | Mid-Month |
| March 2026 | 0.922 | 0.915 | 0.918 | Mid-Month |
Table Conclusion: Over a full year, the middle of the month was the most advantageous period in only 5 out of 12 cases. The end of the month was more profitable 5 times as well, and the beginning of the month on 2 occasions. Attempting to "time" the calendar is therefore pure speculation. Rather than watching for a specific date, you can check the real market rate at any time with our converter before making your exchange.
The Fundamentals Dictating the Curve
The supply generated by cross-border workers converting their francs to euros is instantly absorbed by global demand. In efficient financial markets, a cyclical anomaly (such as a predictable drop every month-end) is immediately leveled out by institutional arbitrage mechanisms.
Fluctuations are strictly dictated by:
- Monetary policies: Key interest rate decisions from the SNB and the ECB.
- Macroeconomic data: Official announcements on Swiss (SECO) and European inflation.
- Geopolitics: Global crises that instantly reinforce the Swiss franc's status as a safe haven.
How to Truly Optimize Your Salary Repatriation?
Since timing the calendar is ineffective, true optimization lies in reducing the intermediary fees charged by traditional banks.
The Solution for Securing the Interbank Rate
To ensure a fair conversion, using a specialized Swiss financial institution like ibani allows you to:
- Benefit from the real live interbank exchange rate.
- Apply a transparent, fixed exchange commission known in advance.
- Automate the transfer to smooth the risk over the year, without worrying about the calendar.