At what prices I will be buying/selling bitcoins? Scenario 1:

I bought k bitcoins at unit rate X in the past, with amount A. If I want to sell them now, I look at three unit prices:


Buy Price
Sell Price
Spot Price


Question # 1: At which price I will be selling the k bitcoins that I have?



Scenario 2:

I have A dollars with me and I want to buy bitcoins with it. I am looking at 3 unit prices:


Buy Price
Sell Price
Spot Price


Question # 2: At which of these unit prices I will be buying the bitcoins?



For the sake of understanding, lets say I am using either Coinbase or GDAX

List item

to buy/sell in both above scenarios.

Thanks
Scenario 1

Using a simpler example, if you visit bitcoin.com.au to sell Bitcoin you will get the sell price for k Bitcoins. In this example, it is a spot sell price.

Scenario 2

Using a simpler example, if you visit bitcoin.com.au to buy Bitcoin you will pay the buy price for k Bitcoins. In this example, it is a spot buy price.

Elsewhere

On market exchanges, the buy and sell price are market indicators. These are the general level of the buy and sell orders. You can creae a buy or sell order for, usually, any price you like but the indicators show current trade values.

If the exchange lists a spot price, this is usually their spot buy price, for if you wish to sell to the exchange directly without creating a market order and waiting.