Massive spike to $7 (then $15.9499) sunday 3PM BST at MtGox

[Elwar]

Placed my $10 trades on the 25th (unfortunately the high went up to 10.19 and I missed the fall on those)

[memvola]

It's hard to trust MtGox if they let trades happen at $15 and not process $10 trades.  It completely distorts the market and is like a lottery win for the lucky guy at $15 and not a market.  If MtGox wants itself to be taken seriously it must address issues like this.

There was probably no trade at 15.

Don't think so. I'm sure we'll hear an explanation shortly. What about dark pools? Haven't been trading at MtGox for some time, looks like any mention of them have disappeared. AFAIK they allowed you to trade exclusively in dark pools, so that would explain trades at $15 before executing trades at $10.

[hugolp]

It's hard to trust MtGox if ...

Its hard to trust bitcointalk as well. Its very hard what to believe.

[froggy]

Yep, bitcoin monitor has the 43BTC @ 15

Where does bitcoin monitor get its data from?  If it's just a feed from mtgox then they're just using the same (apparently wrong) data.

[Cluster2k]

Bitcoin Monitor has lost its feed from MtGox.  Lots of Gox trades happening but they're not showing up now.

[dserrano5]

Yep, bitcoin monitor has the 43BTC @ 15

Where does bitcoin monitor get its data from?  If it's just a feed from mtgox then they're just using the same (apparently wrong) data.

You beat me to this.

[johnj]

Bitcoin Monitor has lost its feed from MtGox.  Lots of Gox trades happening but they're not showing up now.

Oooh oooh, I wasn't around to say it last time, so...

"Gox got goxxed!"

[julz]

Bitcoin Monitor has lost its feed from MtGox.  Lots of Gox trades happening but they're not showing up now.

Oooh oooh, I wasn't around to say it last time, so...

"Gox got goxxed!"

That implies an external agent doing the goxing..  I think it's more likely:  "Gox goxxed itself!"

[Vandroiy]

Mtgox more or less admitted long ago that the feeds get wrong data. I don't know what this is trying to accomplish, but it has been there for ages. The error is always a small trade showing absurd price.

The large spike? Someone bought. Maybe he's just crazy, maybe a faulty bot, maybe a try to start a rally. Who knows? I've seen much more insane movements on Bitcoin than that, so I don't know why people talk about rollbacks and stuff.

[johnj]

Bitcoin Monitor has lost its feed from MtGox.  Lots of Gox trades happening but they're not showing up now.

Oooh oooh, I wasn't around to say it last time, so...

"Gox got goxxed!"

That implies an external agent doing the goxing..  I think it's more likely:  "Gox goxxed itself!"

Gox on gox action?

[Cluster2k]

Okay, bitcoins have arrived at MtGox.  Hacker, please do your worst.  A spike up to $7 would be nice  

[grod]

Mtgox more or less admitted long ago that the feeds get wrong data. I don't know what this is trying to accomplish, but it has been there for ages. The error is always a small trade showing absurd price.

The large spike? Someone bought. Maybe he's just crazy, maybe a faulty bot, maybe a try to start a rally. Who knows? I've seen much more insane movements on Bitcoin than that, so I don't know why people talk about rollbacks and stuff.

Bots rely on pricing data to make their decisions.

Guess what happens when they get fed a bunch of bogus data?

[memvola]

Bots rely on pricing data to make their decisions.

Guess what happens when they get fed a bunch of bogus data?

Bot explanation doesn't fit, since orders didn't execute.

[Cluster2k]

Mtgox more or less admitted long ago that the feeds get wrong data. I don't know what this is trying to accomplish, but it has been there for ages. The error is always a small trade showing absurd price.

The large spike? Someone bought. Maybe he's just crazy, maybe a faulty bot, maybe a try to start a rally. Who knows? I've seen much more insane movements on Bitcoin than that, so I don't know why people talk about rollbacks and stuff.

Again, it's not feed data that's wrong.  MtGox itself is reporting today's high price as $15.94.  It's right there on their web site.  Are you suggesting MtGox reports incorrect data about its own trades?  If that is the case and it's a known issue, it's time to pull all money out of MtGox and close it down for good.

[grod]

Okay, bitcoins have arrived at MtGox.  Hacker, please do your worst.  A spike up to $7 would be nice  

I'm willing to sell at $6.  If I'm wrong, my cost to mine them is $3.50.  Seeing as I shut down but most of deepbit did not looks like 90% of miners get their coins for even less (3c/kwhr power or free?).  I have no worries about them being available much cheaper eventually -- like the bulls, I can think long term as well.

[johnj]

Gox trades on bitcoinmonitor are back up.

[Cluster2k]

Bitcoin Monitor is reporting multiple BTC movements of 50000 to 52500 in quick succession.  Looks like the fun is ending.

[Vandroiy]

Bots rely on pricing data to make their decisions.

Guess what happens when they get fed a bunch of bogus data?

Right, I didn't think of that. But the bot writers should know this problem, as it has been there for a while already. Still, it is a possible explanation.

I'm not so sure whether Mtgox gives warranty of their feeds being correct 100% of the time. I agree that this is very questionable, but might still be the case.

[nibor]

The spikes to $16 look very similar to the price BTC/PLN is trading at.

I wonder if there is a bit of a bug at mtgox that is getting confused about the pln vs usd traded prices?

[grod]

BTC sold: [tid:1315755389779696] 2.00000000 BTC at $6.00000

Thank you mr. hacker!  At least I covered the power to make those coins, even after paying Dwolla 25 cents to move those 12 bucks. =)