4 ms·

I see a lot of comments about how they could have figured out this data by just counting customers outside some Chipotle restaurants. This misses a key point: u

by joncp 12y ago

I see a lot of comments about how they could have figured out this data by just counting customers outside some Chipotle restaurants. This misses a key point: using their massive database, they were able to sift through thousands and thousands of businesses and actually figure out that Chipotle was one to watch. Without that data, they wouldn't know where to put their customer watcher. If they were a little savvier, they could have used their data from CapitalOne to decide which businesses to research and then create shill research, much like the FBI's "parallel construction" of evidence. I wonder whether that would have put them in the clear; when the SEC came knocking, they could have pulled out their research, saying "Look, we figured this out fair and square."

pbhjpbhj 12y ago
Wonder how closely footfall at high-street traders equates to their revenue - pretty close I'd imagine? I'm thinking whether a firm running city centre CCTV could do this with some computer vision systems. Mobile phone operators and ISPs that serve businesses must have similarly closely correlated signals to hand too.
- poikniok 12y ago
  What exactly does your first sentence mean? Trying to parse it and do not understand what "footfall at high-street traders" means.
  - deleted 12y ago
    [deleted]
  - mkehrt 12y ago
    "Foot traffic at high-end stores"
  - pbhjpbhj 12y ago
    as mkehrt says. >"Wonder how closely footfall at high-street traders equates to their revenue - pretty close I'd imagine?" To put it another way: I was thinking that the number of people who go in to shops in the high-street might correlate well with the revenue for those same shops.
titanomachy 12y ago
Since the investigation pulled out the actual database queries they made, it might not have helped anyway.
raincom 12y ago
Many hedgefunds follow the method of "Parellel Construction"; one such method is: many buys and sells before the stock moves. So, the defense is: we have been selling and buying for 2 weeks before the major change.

by joncp 12y ago

pbhjpbhj 12y ago

Wonder how closely footfall at high-street traders equates to their revenue - pretty close I'd imagine? I'm thinking whether a firm running city centre CCTV could do this with some computer vision systems. Mobile phone operators and ISPs that serve businesses must have similarly closely correlated signals to hand too.

poikniok 12y ago
What exactly does your first sentence mean? Trying to parse it and do not understand what "footfall at high-street traders" means.
- deleted 12y ago
  [deleted]
- mkehrt 12y ago
  "Foot traffic at high-end stores"
- pbhjpbhj 12y ago
  as mkehrt says. >"Wonder how closely footfall at high-street traders equates to their revenue - pretty close I'd imagine?" To put it another way: I was thinking that the number of people who go in to shops in the high-street might correlate well with the revenue for those same shops.

titanomachy 12y ago

Since the investigation pulled out the actual database queries they made, it might not have helped anyway.

raincom 12y ago

Many hedgefunds follow the method of "Parellel Construction"; one such method is: many buys and sells before the stock moves. So, the defense is: we have been selling and buying for 2 weeks before the major change.