Author Topic: 2020-10-24 Old bitCNY parameters adjustment  (Read 132 times)

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Offline abit

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2020-10-24 Old bitCNY parameters adjustment
« on: October 24, 2020, 01:45:41 pm »
Purpose:
to restore the peg of bitCNY in the long run and mitigate the issue that some debt positions' collateral ratio is too low.

Changes:
MCR (Maintenance collateral ratio) adjusted from 195% to 200%, then adjusted to 210%
MSSR (Maximum short-squeeze ratio) adjusted from 151% to 180%
MCFR (Margin call fee rate) adjusted from 8% to 5%

Current parameters:

ICR (Initial collateral ratio) 315%
MCR (Maintenance collateral ratio) 210%
MSSR (Maximum short-squeeze ratio) 180%
MCFR (Margin call fee rate) 5%
FSO (Force settlement price offset) 2%
FSFP (Force settlement fee percent) 1%

The median feed price is 0.22 CNY/BTS.

Borrowing is enabled. The maximum supply is limited to 25,000,000 bitCNY.


Note:

* As of writing, market trading price of BTS on CEXs is around 0.126 CNY, the collateral ratio (CR) of the debt position with the lowest CR in the BitShares DEX is 110.9%, the corresponding black swan price is 0.114 CNY.

* the ICR value 315% for feed price 0.22 effectively means 180% for market price 0.126, and the corresponding black swan price is 0.070:
0.22 / 315% = 0.126 / 180% = 0.070

* the MCR value 210% for feed price 0.22 effectively means 120% for market price 0.126, and the corresponding black swan price is 0.105:
0.22 / 210% = 0.126 / 120% = 0.105

* the MSSR value 180% for feed price 0.22 means collateral of low-CR debt positions will be listed for sale at 0.22 / 180% = 0.122 bitCNY
** the MCFR value 5% means the price for buyers' is 0.22 / (180%-5%) = 0.1257143 bitCNY
** 0.122 / 0.126 = 96.8% which means the actual penalty for being margin called is 3.2%
« Last Edit: October 24, 2020, 02:29:54 pm by abit »
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Offline abit

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Re: 2020-10-24 Old bitCNY parameters adjustment
« Reply #1 on: October 24, 2020, 02:27:31 pm »
UPDATE: MCR adjusted to 210%
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