user62890: Lets say that $1B worth of money is going in to bitcoin and its current market cap is $100B. How much would the market cap increase with that $1B?
Would it go to $101B, $105B, $110B, $100.1B?
I know that it will change according to how the money is put in. If they find someone selling by hand locally than it wouldn't affect the market price/market cap at all. 
But I'm more curious on the average of the increase? I'm guessing there is a formula for it in finance? What is it?

user81926: Given that the Bitcoin market is pretty unstable + unregulated I don't think it is possible to predict the outcome of this.
Have a look at the paper Price Manipulation in the Bitcoin Ecosystem by Neil Gandal et al. to get an idea of why this is very hard (if not impossible) to predict.

62890: <p>Lets say that $1B worth of money is going in to bitcoin and its current market cap is $100B. How much would the market cap increase with that $1B?</p>

<p>Would it go to $101B, $105B, $110B, $100.1B?</p>

<p>I know that it will change according to how the money is put in. If they find someone selling by hand locally than it wouldn't affect the market price/market cap at all. </p>

<p>But I'm more curious on the average of the increase? I'm guessing there is a formula for it in finance? What is it?</p>
 81926: <p>Given that the Bitcoin market is pretty unstable + unregulated I don't think it is possible to predict the outcome of this.</p>

<p>Have a look at the paper <em>Price Manipulation in the Bitcoin Ecosystem</em> by <em>Neil Gandal et al.</em> to get an idea of why this is very hard (if not impossible) to predict.</p>
