Earlier quoted context omitted.
> even every 1s. If we can do auctions for web ads, we can do auctions for the stock exchange. There was ~$107 billion in online advertising in 2018. There was ~$145 billion traded in Nasdaq listed equities yesterday . Global financial markets and online advertising have different requirements. [0] https://www.marketingcharts.com/advertising-trends/spending-... [1] http://www.nasdaqtrader.com/Trader.aspx?id=DailyMark…
> There was ~$107 billion in online advertising in 2018. There was ~$145 billion traded in Nasdaq listed equities yesterday. That is a pointless comparison. That $107b was all revenue for somebody (Google, Facebook, etc), while the $145b was just the nominal value of shares traded. (edited typo)
I was highlighting the difference between online advertising and financial markets. They operate at different scales.
> That $107b was all revenue for somebody (Google, Facebook, etc), while the $145b was just the nominal value of shares traded.
These are cash instruments, not derivatives, so that is indeed $145b of cash changing hands each day.