The Shiba Inu cryptocurrency has just climbed to an all-time high and is currently one of the biggest digital currencies by market value.

The parody cryptocurrency meme coin is trading at all-time highs, even after Tesla CEO and dog-related crypto enthusiast; Elon Musk announced on Sunday that he does not own any of the world’s second largest dog-related coin.

According to CoinGecko, Shiba coin which appears to be inspired by dogecoin, itself a meme currency — is up more than 40% over the last seven days.

On Sunday, the price of Shiba Inu coin, which trades as SHIB, skyrocketed to a peak $0.000044, over 50% higher than its price on Saturday. Shiba Inu dropped 10% to trade at $0.000040 as of Monday. Before this weekend, SHIB had never traded above $0.000035.

The Shiba Inu coin in now the 11th largest crypto token by market cap, valued at an estimated $20.3 billion, roughly the same as U.S. cereal giant Kellogg’s. Dogecoin, the world’s largest dog-related meme coin is the 9th largest crypto token with a $35 billion valuation, according to crypto data aggregator CoinGecko, or nearly equivalent to the market cap of technology firm HP.

The 10% drop in Shiba Inu’s price on Monday is due, at least in part, to Musk’s Twitter activity on Sunday. A Twitter user with the handle @ShibaInuHodler asked Musk how much SHIB he held. Musk replied “none.”

He later tweeted that crypto users should beware of investing their entire savings into meme coins like SHIB or the Floki Inu coin, an asset inspired by Musk’s decision to name his real life Shiba Inu puppy Floki.

“Don’t bet the farm on crypto!” Musk wrote on Twitter. “True value is building products & providing services to your fellow human beings, not money in any form.”

That Shiba Inu is still trading higher than its pre-surge price may reflect that Musk’s power over the dog-related coin markets may be fading. In early October, a single Musk tweet about his new puppy helped spark a 400% rise in Shiba Inu coin’s price.

Like another quirky digital currency Dogecoin — which is the ninth biggest crypto by market value — shiba coin features the Shiba Inu dog as its mascot. Its meteoric rise has made some investors millionaires overnight.

The recent surge in SHIB instead appears related to unconfirmed rumors that the coin will soon be listed on the popular stock trading app Robinhood.

Coinmomo, a website that claims to provide a “fundamental analysis of the crypto market,” is at least one cog in the the Shiba Inu-Robinhood rumor mill. It reported, without citing any sources, on Sunday that the coin would be listed on Robinhood on Monday. This weekend, Robinhood also sent a survey to users asking which cryptocurrencies they trade. Many Shiba Inu fans, or the self-described SHIB Army, took Shiba Inu’s inclusion on Robinhood’s list as proof Robinhood would list the coin for trading on its app.