They can only buy what is available without massively pushing the price, which is why when those large blocks came on the ask recently, they did not last long at all before being slapped away.
For the past month there has been a significant increase in accumulation and buying anything available. Even today there was still large bids lurking lower. Being that .0128 was a paint there was no reason to slap 600k that high and will wait it out to try and load as much as possible below .01
If that 600k was at .009 I believe it would have been taken out.
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