One day ago, i used 152.9 BTC to purchase 8266 ETH in a single transaction. Since then price has gone up a good bit, however, my order is still pending...
I would like to understand how things work a little better, my questions are...
1) how long do larger transactions take? so far ive waited over 24 hours, ive noticed smaller transactions are way quicker
The size alone is not important, the question is how high a fee per byte you pay.
2) did i capture price at time of buy?
I dont know, that depends on who poloniex works. I always had the impression that you need to deposit before you can trade. Which would imply that you have not yet traded.
3) is it better to break down my transaction by doing 10 smaller ones that equal 1 big buy?
No.
4) how do whales trade massive amounts?
If you transfer >50k USD, pay the few cents fee.
