"Total" implies adding all the values which is clearly not what's being done.
That is exactly what is being done. If a bitcoin trades at $65 then the total dollar valuation (TDV) is the sum total of each bitcoin that exists at the trade value of $65.
Or am I misinterpreting your comment?
It isn't because not all bitcoins market at the same value. Bitcoins that have been destroyed, for example, have no value because they are not of any use. The term "market capitalization" is therefore better than "total dollar valuation", because market cap includes those assets which have low or reduced value (e.g., the market cap of a company includes unreleased and dead shares).
Exactly. Try buying all bitcoins at $73 or selling all at $73. It just doesn't work that way. So multiplying the current price times the number of coins (and which number do you use for that) is nothing more than producing a number which might vaguely track with the market. And what do you do with that number anyway? Bear in mind that it doesn't take account of velocity either.
Don't get me wrong, it's cool to hear that the number is going up but it's not a good number to attach any real significance to.
Monetary base for Bitcoins is $10.9 million BTC. The monetary base for Bitcoins has to be denominated in BTC, not dollars. I like total dollar valuation (TDV), it's a very descriptive term but I like market cap better. Why? Because everyone knows what the term "market cap" means (or should know the term), so lets keep it simple. I used to work with mutual funds and although technically they can't have a market cap, we used the term "market cap" for all the financial reports to the SEC. It is accepted finance lingo to say that shares outstanding multiplied by current price = market cap for any financial instrument whether or not the finance instrument really have "market cap".
With that, I say that I'm VERY interested in market cap and it's significance. Market cap is one of my primary reasons why I purchased BTC. There is 2 reasons.
A) Market cap determines liquidity. Major players cannot purchase Bitcoins if there is no liquidity. At our firm we classified "small cap" as companies with market caps of less than $500 million. Mid cap as companies with market caps of more than $500 million and less than 2 billion and Large Cap as companies with market caps of more than 2 billion. My opinion is that in order for the major players to purchase BTC, the market cap has to reach 2 billion or more. In order for the market cap of Bitcoins to reach this level the price for one BTC is around $180.
B) Reason A (above) I used market cap to valuate $180 as being the price where I think that the big money will roll in. Now I will use market cap to determine the price that I'm going to sell some of Bitcoins. I strongly believe that the market cap of Bitcoins will reach 1 trillion within 5 years. This is just a rough estimate, but I figure that there will be 14 million BTC outstanding at that time and it would put the price at $71,400 per 1 BTC. Now that may seem high, but just keep in mind that there is about 8 trillion dollars in money markets and equivalents whose 30 day yield is less than
1 cent. But in order to get the price to $71K, the market cap for bitcoins has to be more than 2 billion.