Ok, lets learn how order book works. Let's say there are only Binance & Coinbase in this scenario.
Current price on Binance & Coinbase : 28k
The small detail (like 28032 or 28010 etc) always exist, but for the sake of simplicity lets just skip this part
Here's an example of BUY orderbook on Binance BTC/USDT SPOT market :
at 27930 there are $30000 buy order
at 27860 there are $1000 buy order
at 27790 there are $700 buy order
at 27720 there are $8000 buy order
at 27660 there are $900 buy order
.....
at 26600 there are $1M buy order
The number (price&demand) will vary until all the way down.
Here's an example of SELL orderbook on Binance BTC/USDT SPOT market :
at 28070 there are $30000 sell order
at 28140 there are $3000 sell order
at 28210 there are $400 sell order
at 28280 there are $1000 sell order
at 28350 there are $2000 sell order
......
at 29400 there are $2M sell order
The number (price&supply) will vary until all the way up.
In order for the price to move up 1% (28k to 28280) there has/have to be a market taker that take the order equal to $34.4k ($30k+$3k+$400+$1k)..... but the price will only pump for a very short period of time.
In order for the price to stay at least on that price range, there has to be at least equal amount of buy pressure & sell pressure at the same time.
If sell pressure > buy pressure then price will go down but you can expect a higher lower high since people will FOMO to a pump. The price can go higher if buy pressure > sell pressure
Well the pump only happen on Binance & i only calculated a 1% price pump, for a 5% pump more money needs to be thrown at the instant buy button.
Extra : when price on Binance > Coinbase, traders on Coinbase will see BTC/USDT as underpriced therefore will instantly buy on Coinbase. The trader on Binance also sees their BTC/USDT price as overpriced therefore BTC holder there will immediately sell their BTC for "premium". This is the known as arbitrage trading "You buy where price is low & you sell where price is high"
I only calculate 1% pump, for 5% pump to happen you need to count all the sell pressure between the current market (28k) & your desired price (29.4k).
Let's say the total sell pressure in between those price are 3/7/ or whatever million dollars then that is what number you are looking for
The price could also go crazy when sell order is being removed by the market makers.
Then wtf does Coinbase has to do with this???