The staggering amount of 4 trillion dollars is the daily turnover in global foreign exchange market.The amount of 4 trillion dollars is used only in the Forex market. Other forms of commodity trading markets such as shares, goods, bonds etc, do not participate to the above mentioned figure. Compared to 2007, the foreign exchange market turnover has increased by 20%.

Source: https://pepperstone.com

By Instruments
Foreign exchange swaps – $1,8 trillion – 45%
Spot – $1,5 trillion – 37,5%
Outright forwards – $475 billions – 11,9%
Currency options – $207 billions – 5,2%
Currency swap – $43 billions – 1%

 
By Counterparties
with other financial institutions (hedge funds, pension funds, central banks) – $1,9 trillion – 47,7%
with bank dealers – $1,5 trillion – 37,5%
with non-financial customers (corporations and governance) – $533 billions – 13,4%
private traders – $60 billions – 1,5%

By Geography

1. UK (London) – 37%
2. US (New York) – 18%
3. Japan – 6%
4. Singapore – 5%
5. Switzerland – 5%
6. Hong Kong SAR – 5%
7. Australia – 4%

By Banks

1. Deutsche Bank -18.06%
2. UBS AG – 11.30%
3. Barclays Capital – 11.08%
4. Citi – 7.69%
5. Royal Bank of Scotland – 6.50%
6. JPMorgan – 6.35%
7. HSBC – 4.55%
8. Credit Suisse – 4.44%
9. Goldman Sachs – 4.28%
10. Morgan Stanley – 2.91%