The author describes changing bid/sell prices based on new information (like a new press release putting pressure on value, say). He doesn't mention whether people are feeding the algos up/down pressure based on these press releases or if they're automatic.
I assume they're at least partially automated. In other words for every article that comes out about a given company, some algo (or human) gives it a plus/minus ranking and magnitude based on what it means for the company.
Assuming this is partially done by algos that crawl press releases looking for signals, or similar (in order to be first to market with latest news) one can imagine a new type of hacking.
Hack the press releases and watch the algo trades go haywire....
I assume they're at least partially automated. In other words for every article that comes out about a given company, some algo (or human) gives it a plus/minus ranking and magnitude based on what it means for the company.
Assuming this is partially done by algos that crawl press releases looking for signals, or similar (in order to be first to market with latest news) one can imagine a new type of hacking.
Hack the press releases and watch the algo trades go haywire....