HONG KONG/SINGAPORE:Bitcoin and ether, the world's two largest cryptocurrencies, stayed weak on Wednesday and near critical levels that analysts believe could spell further weakness if breached.

Bitcoin last traded around $59,000, down 1% on the day, and off about 12% from the record high of $69,000 set on Nov. 10, while ether was at $4,163, more than 14% lower than its peak $4,868.

While profit-taking after the massive run-up in prices was emerging as the biggest factor, analysts pointed to bitcoin's blockchain upgrade on the weekend, higher US inflation and China's latest directive to its state-owned firms not to engage in cryptocurrency mining as being other reasons behind the more cautious sentiment.

Bitcoin has doubled in value since January. Its correction could get severe if it fell through $58,000, Craig Erlam, senior market analyst at online broker Oanda, said in a note.

"This is roughly where it found strong support at the end of October and given how much it's struggled to make major strides higher since, it could be the catalyst for a deeper correction," Erlam wrote.

News that Twitter would not be investing in cryptocurrencies and the US Securities and Exchange Commission's (SEC) rejection of what would have been the first US spot bitcoin exchange-traded fund by VanEck were also dampeners.

"This has the feel that we could see some messy two-way action, and it wouldn’t surprise to see 68,000 capping the upside, 57,000 the downside." Chris Weston, head of research at brokerage Pepperstone in Melbourne, wrote in a client note.

In the past week, traders have become less willing to pay to hold long positions in bitcoin futures. Average funding rates fell to 0.00354% on Tuesday, according to cryptocurrency analytics platform CryptoQuant, their lowest since late September and down from 0.04122% on Nov. 10.

Funding rates represent sentiment in the perpetual swaps market, a major part of the bitcoin derivatives world.

Positive funding rates imply that traders are bullish, as they must pay to hold a long position, while negative rates mean traders must pay to hold a short position, and hence are bearish.

"With the funding rates now declining to neutral levels, it seems to be a healthy balance between long and short demand in the market," crypto analysts at Arcane research said in a research note.

Money pouring into bitcoin products and funds has hit a record $9 billion this year, and totalled $151 million last week in the 13th consecutive week of inflows, data from digital asset manager CoinShares showed on Monday.

Although flows have been positive recently, volumes have been subdued in the second half, averaging $750 million daily versus $960 million in the first, CoinShares said.

Singapore-based digital economy trading firm QCP Capital pointed to the relatively heavier selloff in ether (ETH) and said that might continue, alongside a pick-up in options activity on that token.

"We’ve turned quite neutral after this awaited leverage wash-out. We expect BTC (bitcoin) to be stuck around 60,000 given the strike gravity. And perhaps more volatility in ETH and altcoins," they wrote in a post on social media platform Telegram.