RE: Bank cartel - concerted effort to manipulate share price29 Apr 2025 13:09
@johnychainlocker, your post reflects naivity and lack of understanding on how banks operate. No issues, but I can tell you from first-hand experience working in BB, that your arguments do not hold any water, particularly in the UK at large bulge bracket banks like GS.
UK is a heavily regulated market and bank's internal complince systems are too strong to deter individuals (more so the bank itself) not to engage in market manipulations with heavy consequences (fines and jail terms) for individuals directly.
Directly addressing your question, note few points:
1) GS (as other banks) have different roles on corporate transactions with different teams (sitting on different floors) with different supervisions, compliance, motiviations, clients etc.) that serve different purpose independent of each other. For example their M&A team may be advising Sidara and hence possess material confidential information, which is not shared with their equity trading desk which works independently to execute institutional client trades. The moment anyone on trading desk gets a whiff of insider information, they are barred from trading and moreso, the individual from M&A teams are reprimanded very strongly (even to a job loss). Usually, M&A teams do not interact with traders in normal day to day course.
2) Separately, GS (as do other banks) do not do proprietary trading anymore. They only execute trades for their institutional clients. So, there is little incentive for individuals to go rogue in the way you describe.
3) Sidara is not allowed to trade stocks as insider at this stage. Even if they do, lets say via GS, they will have heavy penalty including for GS, and the individuals concerned will not only be penalised but may end up going to jail.
I can go on and on, but hope this gives you some understanding. Use ChatGPt may be to get more detailed perspective.