Agreed, however, it should be noted that 100% gain for STEEM isn't "normal" market conditions.
South Korean speculation on Steemit has pushed SBD to ridiculous heights after a recent Korean exchange added it for trading; but SBD only has 1 use, to be converted to $1 of Steem, therefore SBD will return to its designed price region, eventually.
Steemit's SBD to STEEM conversion ensures SBD will return to $1 eventually as 1 SBD will always be directly convertable to $1 of STEEM over several days via your Steemit wallet.