700BTC buy in finex.
I feel pretty confident. Thank fuck I took in a long position yesterday at $465.

Looks like net=0 on that. Sell of 683 followed by a Buy of 683. Unlikely its just a coincidence.
Why would anyone sell at 691 and then buy at 697... unless they thought that there deliberate dump did NOT work, and they were going to miss the train?... but looks way too soon in time (only 2 minutes between the sell and the buy)
It does not have to be one selling and then buying.
It could be the same guy selling in both thrades, alternatively, the same guy buying. When you sell, you have the choice to accept an offer or place an offer that is later accepted by someone else. It is quite common for a trader to buy or sell the same quantity repeatedly. It is even common to identify the trades with odd numbers, like repeatedly buying f.ex 1.0035 BTC. It is the same with shares of equity. It could be a secret language between traders. Culture, in other words.
It still seems to be a strange phenomenon when there seems to be manipulation to keep the price up; however the example given, if it is NOT fake, seems to be that 683BTC was sold at
$691 $491 and then 2 minutes later 683BTC was bought at
$697 $497. As far as I can infer, that seems to be an attempt to manipulate the price upward, but it did NOT get any legs or momentum b/c the top of the prices only got to
$697 $497... so that explanation as an attempted upward manipulation makes NO sense ... The whole thing makes NO sense... whether done by one person or multiple people, and even if it were a coincidence, it makes little sense either that the BTC price would NOT have gone up after a 683BTC buy at
$697 $497 (top of the day's price).
Maybe a more convincing explanation is that there was some kind of faking of BTC transactions going on? Or alternatively, that there was some kind of software glitch, and that trade did NOT really take place? Actually, I looked at the price and the BTC history, and the price was
$497.24 (the number that exactly shows the bitfinex high price of the day).. NO SLIPPAGE?
Edit: Again fixed $697 to $497... due to my repeated mistyping (maybe I am finding it subconsciously impossible to accept these current $4xx price points as BTC current and real status?).