How can the same currency cost $110 on one platform and $550 on another simultaneously, without arbitrageurs buying low to sell high? In a normal market, this gap would last seconds. In February 2014, it persisted, and the explanation was clear: nothing could be withdrawn from MtGox. No dollars, no bitcoins.
Arbitrage—buying where cheap and selling where expensive—is the market's most basic mechanism. It works only if money and assets can circulate. When exit doors close, the price of the same asset in two venues stops being a single price: it becomes two different prices for two different problems. At MtGox, the issue was recovering funds. At Bitstamp, it was speculation.
Why is Bitcoin cheaper on MtGox?
Because all withdrawals were blocked, both cash and bitcoin. A balance on screen means nothing if it cannot be realized: a bitcoin on MtGox was not a bitcoin, but an indefinite payment promise. The wait was long; forum threads claimed SEPA transfers took around two months.
With this lockout, the quote ceased to be a price and became a risk discount. The $110 was not what a bitcoin was worth: it was what someone paid for a bitcoin that might never leave the exchange. The gap with Bitstamp ($550) was the premium demanded for trading where money actually moves.
From "Technical Error" to Fraud Suspicions
One participant noted MtGox promised to fix a technical error and restore withdrawals. This made the trade tempting: buy at $110 what is worth double elsewhere, waiting for the gap to close.
The problem was verification. With the system closed externally, internal accounting was impossible to audit, and real liabilities might differ significantly from displayed balances. The worst-case scenario suggested millions of non-existent bitcoins had been sold within the system—figures cited near 5,000,000—to cover deficits before repurchasing them. There was no proof, nor any way to refute it.
$110 vs $550: The Hole
The gap was enormous. MtGox quotes fell to $110 while Bitstamp held at $550. A bitcoin over four times more expensive in one venue than another was no longer a market anomaly; it was a public judgment on the exchange's solvency.
For those with balances, the only exit was selling cheaply to avoid total loss. The issue with bank runs is that the price seen when starting to run is not the price found upon arrival. Everyone acts individually, and the floor drops away.
Six-Figure Bets on Bitcoin Collapse
The price divergence led to broader debates about Bitcoin itself, involving real money. Cross-offers reached 10 to 1 odds on whether the currency would be above or below $300 by January 1, 2015, using midnight Bitstamp prices as reference.
The mechanics were striking. Those betting on a drop committed to depositing €100,000 as collateral against rivals posting €10,000. Since deposits were in bitcoins at a rate of €435 per unit, coverage required 230 bitcoins versus 23. Arguments included CFA Level 2 credentials and investment fund positions; opponents questioned these resumes. Without agreed terms, the bet remained unresolved.
Is Buying Cheap on MtGox Worth It?
It depends on one thing: whether the promise to reopen withdrawals holds. If yes, buyers at $110 see more than double upside to Bitstamp levels. If not, they hold a worthless claim with no counterparty. Optimistic analysis assumes a temporary halt and gap closure. Pessimistic views assume blocked funds are gone.
Amidst this lies an undeniable fact: while the same asset differs by more than double between platforms, the market signals one is not worth its stated value.
Given these numbers, buying on MtGox looks like a bargain. So did buying at $900 during the peak.
Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication.
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