"If any issues arise that could affect the willingness or ability of both domestic and foreign investors to use USDT, the most likely result would be a severe liquidity shock to the broader cryptocurrency market," the report says.
Gundlach has previously said, "I don't believe in bitcoin."
Ether's derivative market looks overheating amid the cryptocurrency's rally to new record highs.
The bank's analysts pointed to gold's much lower volatility.
A senior Finance Ministry official told a newspaper that taxation does not necessarily imply legality.
Rising bond yields is a threat to prices of hedge assets like bitcoin and gold.
De acuerdo a analistas, la criptomoneda necesitará una mayor cantidad de compras al contado para mantenerse por encima de esa marca
The firm called the leading cryptocurrency "the start of a new age on the digital currency front."
Bitcoin had been most-crowded trade in January as prices rose to a $40,000 record.
Analysts say more spot buying is needed to bring bitcoin over the $50,000 mark.
Lack of hedging demand for long-term put options shows institutions remain unconcerned by Monday's price drop.
The sudden pullback just short of a new $50,000 high surprised many investors. Here's what probably happened.
EUR/USD, the most liquid currency pair globally, tracked bitcoin higher following the Tesla news.
Bitcoin miners earn windfall income amid the price rally.
"Bitcoin is loving the BNY Mellon news. It's a very big deal," trader and analyst Alex Kruger tweeted.
Bitcoin's options market sees only a 12% probability of prices rising above $100,000 by the end of December.
Alternative cryptocurrencies are surging as bitcoin consolidates after its recent record-breaking rally.
Bitcoin's price volatility may put corporates off from emulating Tesla's decision to invest in the cryptocurrency.
The ETF will be available for trading by accredited non-U.S. investors.
Ether has more than doubled in value this year, outperforming bitcoin.
"The market is now pricing in a high likelihood that many other corporates will copy Tesla," one trader said.
The largest cryptocurrency surged at least 11% to surpass the previous peak price of $41,962 reached in early January.
The Chicago exchange has now traded 77 ETH contracts after going live on Sunday.
The exchanges have set up websites helping supporters email members of parliament.
The cryptocurrency has gained 30% so far this week.
An analyst expects DeFi tokens to mimic bitcoin's 2017 bull run this year.
Continued accumulation of bitcoin by investors is causing market liquidity to drop and helping drive prices higher.
A recent bulletin from India's lower house had once more raised fears of an total cryptocurrency ban.
Analysts cautioned that a stronger dollar could play spoilsport to any new push higher.
Analysts say the trading movement started by WallStreetBets may boost adoption of ether and other cryptocurrencies.