On Dec. 1, 2017, BTC wicked down to $9,410 before going on its historic ride to $19,700, tallying a price move of more than 109%.
This 2017 December ride coincided with the Chicago Mercantile Exchange (CME) and the Chicago Board Options Exchange (CBOE) both launching their respective physically-settled BTC futures trading products.
The CBOE launched its Bitcoin futures trading product on Dec. 10. Then Bitcoin reached its all-time high near $19,700 on Dec. 17, 2017, right when the CME launched its own cash-settled Bitcoin futures trading product.
After Bitcoin a strong fall awaited
Tomorrow launch of BTC options on the CBOE.
Probably that's the reason to try short with SL at 105 000 USDT
In case BTC continues its growth we won't lose much.