The tokens of each exchange depend a lot on that platform, OBX token was the native ERC-20 token of the OOOBTC exchange, the exchange closed some time ago, OBX tokens were used only on OOOBTC exchanges for trade fees and certain platform functions.
Since the token was not used outside the platform, it is normal for the OBX to lose its liquidity and trading volume as soon as the exchange closes. This is exactly what happened when the OOOBTC exchange closed and the OBX token lost its functionality.
My review is for those new investors who are always looking to invest in new cryptocurrencies. I would recommend never looking at the OOOBTC TOKEN even though it is on the Untracked Listing on coimarketcap.