Controversy has returned to cryptocurrency trade Coinbase after an altcoin it listed surged 200% in 15 minutes — solely to crash instantly afterward.

Presently a subject of curiosity on social media, Coinbase’s itemizing of OmiseGo (OMG), the 34th ranked cryptocurrency by market capitalization, additionally sparked acquainted accusations of insider buying and selling.

Coinbase ‘premium’ reaches 80%

“OmiseGO (OMG) is launching at and within the iOS and Android apps inside the subsequent 15 minutes,” the corporate tweeted on Could 21.

The primary day’s buying and selling was marked by OMG buying and selling at a major premium over different exchanges, notably Binance. At one level, the premium reached 82% on five-minute closing costs.

Matt Casto, an analyst at crypto asset buying and selling group CMT Digital, described the scenario as “ridiculous” and argued that the premium was creating “new lifetime bagholders.”

One 15-minute interval additional noticed a 200% value improve, after which the altcoin virtually instantly crashed.

OMG/USD chart showing Coinbase premium versus Binance

OMG/USD chart displaying Coinbase premium versus Binance. Supply: Matt Casto/ Twitter

A historical past of doubtful launches

Coinbase has but to supply public touch upon the criticism, which for longtime merchants will likely be paying homage to earlier altcoin launches by the trade.

Maybe most infamous was Coinbase’s assist of Bitcoin Money (BCH), which started climbing in value even earlier than any public announcement of the trade supporting it. This in flip led to accusations of insider buying and selling, and even an investigation by Coinbase itself, which in the end discovered no proof of foul play.

This time, nonetheless, commentators famous that OMG likewise started its uptrend earlier than an official announcement — so far as seven days prior.

“When will accountability be held? Inform me it’s simply coincidence or is it insider buying and selling,” Twitter account Crypto Pilot responded.

OMG goes stay on Coinbase on Could 21, however for some unknown motive it began a 65% rise on Could 14, 7 days in the past.

At press time, OMG buying and selling costs throughout exchanges had stabilized to round $1.90 per coin.

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