2021 BDT to STD Historical Review

YEARLY HIGH

249.3826 STD

YEARLY LOW

237.9531 STD

YEARLY AVERAGE

243.5756 STD

2021 BDT to STD Performance & Market Timing Review

Analysis of key historical highlights and timing insights for 2021

During 2021, the BDT to STD exchange rate experienced significant fluctuation. The market reached its absolute peak on December 12, valuing the pair at 249.3826. Conversely, the yearly low was recorded on February 15, dropping to 237.9531.

This high-to-low spread represents a total annual volatility of 11.4296 STD. From a start-to-finish perspective, comparing the January average rate of 241.1938 to the December average rate of 247.3100, the exchange rate registered a net change of 2.54% (reflecting a strengthening trend).

Looking at year-over-year peak valuations, the 2021 high of 249.3826 was down 5.44% compared to the 2020 peak of 263.7174, indicating shifts in long-term support levels.

Transfer Payout Power Comparison

Comparing the value generated converting 5,000 BDT based on timing:

Yearly Peak High 1,246,913 STD

2020 Average 1,268,038 STD

Yearly Trough Low 1,189,765 STD

Transaction Impact: A difference of 57,147.80 STD purely based on transaction execution date.

Trend Visualization

Monthly average fluctuations over the course of 2021.

248.0019

239.6996

JanuMarcMayJulySeptNove

BDT to STD Seasonal Trends & Volatility Analysis

A structured review of seasonal halves, trading extremes, consecutive streaks, and historical baselines.

Seasonal Halves (H1 vs H2)

Seasonal

The average exchange rate in the first half of the year (H1: Jan–Jun) was 242.6081, compared to 244.5431 in the second half (H2: Jul–Dec). This shows that the rate was stronger in the second half (Jul–Dec) by a margin of 1.9351 points.

H1 Avg (Jan–Jun) 242.6081

H2 Avg (Jul–Dec) 244.5431

Volatility Range Comparison

Volatility

The most volatile month in 2021 was March, with a trading range of 6.1781 STD (High: 245.9198 / Low: 239.7418). On the other end, August was the most stable month, with a tight range of 1.7935 STD (High: 244.9667 / Low: 243.1733).

March Spread (Volatile) ±6.1781

August Spread (Stable) ±1.7935

Growth Streaks & Declines

Trends

Between September and December, 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 May and June, when the average rate fell by 2.5992 points.

Longest Streak 3 Mo.

Sharpest MoM Drop -2.5992

Same-Month Historical Baseline

YoY Baseline

Comparing the current year's strongest month average (December 2021: 247.3100) against the same month in 2020 (average: 243.8163), the exchange rate shifted by +3.4937 (+1.43%).

2021 Avg (December) 247.3100

2020 Avg (December) 243.8163

Monthly Breakdown

Statistical summary for each calendar month.

Month	High	Low	Average
January	241.8573	239.6878	241.1938
February	241.5553	237.9531	240.3914
March	245.9198	239.7418	242.5796
April	246.5340	243.8002	244.8321
May	246.5693	243.4961	244.6253
June	244.9919	239.9798	242.0261
July	244.0715	241.8499	243.0538
August	244.9667	243.1733	243.9508
September	245.5400	241.5540	243.1095
October	245.6134	243.7653	244.5777
November	247.3396	243.4700	245.2568
December	249.3826	245.4874	247.3100

૨૦૨૫ BDT થી STD ઐતિહાસિક સમીક્ષા