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> 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

> 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-and-spenders-108416 https://www.marketingcharts.com/advertising-trends/spending-... [1] http://www.nasdaqtrader.com/Trader.aspx?id=DailyMarketSummary http://www.nasdaqtrader.com/Trader.aspx?id=DailyMarketSummar...

dlhavema 7y ago
How is the 145 billion calculated? If I buy and sell with a 100$ 100 times does that count as $10,000 or $100?
- dmoy 7y ago
  The number quoted is total volume, so it would be $10k
buzzdenver 7y ago
> 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)
- nickles 7y ago
  > That is a pointless comparison. 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.
  - huac 7y ago
    not necessarily, money has velocity; market participants don't have $145B to spend, they spend a fraction of that and then reconcile balances at the end of the day. see https://en.wikipedia.org/wiki/Clearing_(finance) https://en.wikipedia.org/wiki/Clearing_(finance)
  - kasey_junk 7y ago
    I’ve worked in both. For the purpose of the earlier conversation, the auctions for ad exchanges happen at about 1 order of magnitude more than for exchange tradable symbols. That is to say there is no tech reason that financial exchanges couldn’t run auctions. Aside: personally I think that continuous exchanges are great & people who have problems with them usually don’t know what they are talking about.

dlhavema 7y ago

How is the 145 billion calculated? If I buy and sell with a 100$ 100 times does that count as $10,000 or $100?

dmoy 7y ago
The number quoted is total volume, so it would be $10k

buzzdenver 7y ago

> 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)

nickles 7y ago
> That is a pointless comparison. 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.
- huac 7y ago
  not necessarily, money has velocity; market participants don't have $145B to spend, they spend a fraction of that and then reconcile balances at the end of the day. see https://en.wikipedia.org/wiki/Clearing_(finance) https://en.wikipedia.org/wiki/Clearing_(finance)
- kasey_junk 7y ago
  I’ve worked in both. For the purpose of the earlier conversation, the auctions for ad exchanges happen at about 1 order of magnitude more than for exchange tradable symbols. That is to say there is no tech reason that financial exchanges couldn’t run auctions. Aside: personally I think that continuous exchanges are great & people who have problems with them usually don’t know what they are talking about.