Stablecoin are like digital coin that is built to peg, stand or stabilize a particular coin. This means that when a particular coin is pegged with a stablecoin,it shows that such coin value or rate stands the chance to be stabilized. Let us take for instance, hive backed dollar (HBD) is a stablecoin that pegged the HIVE COIN. That is why HBD usually stabilize the HIVE COIN rate.
Should investment in stablecoin should be advised in the dip market.
The best time to invest in stablecoin is when a particular cryptocurrency coin is at high rate. That's the best time hodl,since the stablecoin is to stabilize the rate of a particular coin. Let us assume when the hive coin is at high rate, the conversion of stablecoin which the hbd to hive coin will be very low but when the hive coin rate is low,that the best time that one could make a choice to convert from the stablecoin (hbd) to hive coin.
Please note that this isn't a cryptocurrency Investment but just a mere opinion. If you need a cryptocurrency advice, please be endeavor to contact a cryptocurrency expert. Thanks!