2021 ALL to IDR Historical Review
A comprehensive breakdown of exchange rate performance throughout the year 2021.
2021 ALL to IDR Performance & Market Timing Review
Analysis of key historical highlights and timing insights for 2021
During 2021, the ALL to IDR exchange rate experienced significant fluctuation. The market reached its absolute peak on May 20, valuing the pair at 142.8099. Conversely, the yearly low was recorded on November 24, dropping to 132.1506.
This high-to-low spread represents a total annual volatility of 10.6593 IDR. From a start-to-finish perspective, comparing the January average rate of 138.5233 to the December average rate of 134.0135, the exchange rate registered a net change of -3.26% (reflecting a weakening trend).
Looking at year-over-year peak valuations, the 2021 high of 142.8099 was down 14.99% compared to the 2020 peak of 168.0012, indicating shifts in long-term support levels.
Comparing the value generated converting 5,000 ALL based on timing:
Trend Visualization
Monthly average fluctuations over the course of 2021.
ALL to IDR Seasonal Trends & Volatility Analysis
A structured review of seasonal halves, trading extremes, consecutive streaks, and historical baselines.
Seasonal Halves (H1 vs H2)
SeasonalThe average exchange rate in the first half of the year (H1: Jan–Jun) was 139.6684, compared to 136.7271 in the second half (H2: Jul–Dec). This shows that the rate was stronger in the first half (Jan–Jun) by a margin of 2.9413 points.
Volatility Range Comparison
VolatilityThe most volatile month in 2021 was February, with a trading range of 4.4957 IDR (High: 140.3031 / Low: 135.8074). On the other end, July was the most stable month, with a tight range of 2.1545 IDR (High: 141.4001 / Low: 139.2456).
Growth Streaks & Declines
TrendsBetween February and May, the exchange rate recorded its longest consecutive growth streak of the year, climbing for 3 straight months. Conversely, the sharpest month-over-month decline occurred between September and October, when the average rate fell by 2.7950 points.
Same-Month Historical Baseline
YoY BaselineComparing the current year's strongest month average (May 2021: 141.2251) against the same month in 2020 (average: 130.3716), the exchange rate shifted by +10.8535 (+8.33%).
Monthly Breakdown
Statistical summary for each calendar month.
| Month | High | Low | Average |
|---|---|---|---|
| January | 140.2821 | 137.2883 | 138.5233 |
| February | 140.3031 | 135.8074 | 137.4753 |
| March | 139.8691 | 137.6698 | 138.8758 |
| April | 142.5804 | 138.2852 | 141.1230 |
| May | 142.8099 | 139.3296 | 141.2251 |
| June | 142.6191 | 139.5779 | 140.7879 |
| July | 141.4001 | 139.2456 | 140.2267 |
| August | 141.1763 | 138.0399 | 139.2348 |
| September | 138.9841 | 136.4004 | 138.0867 |
| October | 136.4405 | 134.0586 | 135.2917 |
| November | 135.1383 | 132.1506 | 133.5093 |
| December | 135.8698 | 132.9711 | 134.0135 |