United States Securities and Exchange Commission Chair Gary Gensler riled up Crypto Twitter on Monday after affirming that Bitcoin 

BTC

$17,269

 is a commodity. Questions were raised about its impact on Grayscales’ proposed Bitcoin exchange-traded fund (ETF) and why Ether 

ETH

$1,325

 wasn’t mentioned.

Speaking to Jim Cramer on CNBC’s Squawk Box on Monday, the SEC chair said that while many crypto-financial assets have the key attribute of a security, Bitcoin is the “only one” that he was comfortable publicly labeling as a commodity:

“Some, like Bitcoin — and that’s the only one I’m going to say because I’m not going to talk about any one of these tokens, but my predecessors and others have said they’re a commodity.”

Grayscale Bitcoin ETF

The remarks kicked up chatter about Grayscale’s application to convert its Bitcoin Trust into a spot-based ETF — which is expected to see a yes-or-no decision from the SEC on July 6.

James Seyffart, an ETF analyst at Bloomberg Intelligence, told his 19,300 Twitter followers that while Gensler’s remarks are positive for Bitcoin, it may not be enough to see Grayscale’s Bitcoin spot ETF approved next week.

Eric Balchunas, a senior ETF analyst at Bloomberg, made similar comments, noting he saw only a 0.5% chance of Grayscale’s GBTC being allowed to convert to an ETF. 

No mention of ETH

Crypto Twitter also picked up on the fact that Gensler refrained from mentioning whether he placed Ether in the same commodities boat, despite the regulator and the Commodity Futures Trading Commission (CTFC) previously agreeing that the asset was a commodity just like Bitcoin.

Positive for Bitcoin

Nevertheless, Gensler’s views on Bitcoin have been seen as a positive for the king of crypto.

Bitcoin bull Michael Saylor shared the video to his 2.5 million Twitter followers, adding that Bitcoin is essential as a treasury reserve asset, which will allow governments and institutions to support it as a digital asset to grow the economy.

Meanwhile, Eric Weiss, founder of Blockchain Investment Group, noted on Twitter that Gensler is the second SEC chair to declare Bitcoin a commodity, making it near impossible for this classification to be altered in the future.

Related: Google users think BTC is dead — 5 things to know in Bitcoin this week

Interestingly, the positive news for Bitcoin resulted in another price decline, falling from a 24-hour high of $21,478 to $20,635 at the time of writing.

Ether has fallen from a 24-hour high of $1,234 to $1,171 at the time of writing as the bears retain their grip on the markets.