Steem Dollar (SBD), a cryptocurrency backed by the Steem blockchain, has experienced a significant 90% surge on Upbit, a major South Korean cryptocurrency exchange. At the time of writing, SBD is trading at 6748 won on Upbit, representing a 91.20% increase from its previous value. This surge has attracted the attention of the cryptocurrency community, with analysts speculating on the reasons behind this sudden rise. Some experts attribute the surge to increased demand for SBD as a result of its growing use as a medium of exchange on the Steem platform. Others suggest that the recent listing of SBD on Upbit has also contributed to its increased popularity and trading volume. Regardless of the specific factors driving this surge, the 90% increase in SBD's value is a testament to its growing adoption and utility within the cryptocurrency ecosystem. It will be interesting to see if this upward trend continues in the coming weeks and months.