Turkey's Central Bank unexpectedly hiked interest rates on Sept. 24, triggering an improvement in the lira's value against the dollar. The Turkish Lira has sunk to record lows over the past month as Ankara's currency interventions proved futile.
Turkish Treasury is “printing” forex bonds to create additional foreign currency for its own operations. Public banks, on the other hand, are spending their cash foreign currencies and replacing them with forex bonds the Treasury is printing.
For a long time, Ankara had eroded foreign currency reserves worth near 100 billion to hold the rate. Now, it has come to the end of the road. It has spent its last penny and left the rate to the markets. Thus, the “unheard of” invented exchange rate regime has collapsed.