“Working with Doge devs to improve system transaction efficiency. Potentially promising.”

According to CoinGecko, the price climbed 26% from $0.38 this morning to $0.48 at the time of writing.

The tweet’s reference to “efficiency” seemed to lend weight to the idea Tesla may add Dogecoin (DOGE) as a form of payment after the CEO noted on Thursday the firm is looking at greener cryptocurrencies that use less than 1% of Bitcoin’s energy per transaction.

TradingView responded to Musk’s tweet by noting Dogecoin’s market capitalization had ballooned $10 billion in the immediate aftermath. Dogecoin’s market cap was sitting at roughly $49 billion at 6 am on Friday and has since increased to $66.7 billion as of this writing, an increase of almost $18 billion