Bitcoin (BTC) trading is coming under the spotlight this week after another flash crash sparked concerns that traders are manipulating markets.

As various social media users noted, including statistician Willy Woo on November. 5, unusual occurrences on exchanges give reason to exist critical of Bitcoin price movements.

Woo: I'g "highly suspicious" of BTC/USD

Every bit Cointelegraph reported, terminal calendar week saw sudden erratic behavior at two exchanges — Deribit and Coinbase Pro — which appeared to influence BTC/USD.

On Tuesday, it was CME Group's Bitcoin futures which continued the tendency. In early trading, BTC/USD futures all of a sudden tanked to below $8,500 earlier rebounding to $9,300.

CME Bitcoin futures daily chart

CME Bitcoin futures daily nautical chart. Source: TradingView

That lower level previously formed a gap in futures trading — when i session begins college than where the last concluded. Analysts note that Bitcoin oft seeks to "make full" those gaps, but in this instance, it did so with minimal resources.

"I cannot believe how crazy trading BTCUSD on the brusk term is right at present. The gap on the CME has filled already. It's thinly traded yes. But man, I'm highly suspicious of the price action across all the exchanges of late, more and so than usual," Woo summarized.

Cointelegraph contributor filbfilb reacted similarly, noting the unusual nature of the price filling at CME.

"Don't know what happened there!" he told subscribers of his dedicated Telegram trading channel on Tuesday.

For Twitter analyst lowstrife meanwhile, the beliefs was a "good instance" of market place manipulation.

"If you look at my original tweet, all the volume printed before the bodily dump. Simply on the one minute chart it looks similar information technology was function of the entire motion. This is called painting the tape," the business relationship wrote.

BTC toll scarlet herring?

Bitcoin has seen two major run-ups in contempo weeks, defying the previous sentiment that markets would remain lower in the months before the May 2020 block reward halving upshot.

The moves seemed to take analysts past surprise, with BTC/USD recording its 2d-largest daily gains in history late last month.

Longer-term, 2019 has been characterized by periods of price stability punctuated by sudden up and downward movements occurring in a matter of minutes or hours.