raviolo

As someone who never worked anywhere: what’s IB?

Don’t many CRE buildings do exactly this, and have been for years? As a notable example, Goldman building built in NYC over 10 years ago:

https://chenected.aiche.org/2014/08/goldman-sachs-new-deep-f...

CTO of an HFT firm here. My opinion: repo (and probably author’s comments) are LLM-generated. That said, many questions and techniques touched upon are real. So even though I certainly would not use any of these verbatim (as I wouldn’t do with any other LLM code), as a list of pointers for someone relatively new to the field this is actually pretty useful.

Saves you a “generate low-latency trading system” prompt anyway.

It does not. If this was the case, round trip wire to wire latency below 1.0-1.2 microseconds in software would’ve been impossible. But it clearly is possible - see benchmarks by Solarflare, Exablaze, and others.

Is it a coincidence it’s 42 megawatts and not 41 or 43?

They were most definitely IFR. Not because of the weather but because IFR is required above certain altitude 18,000 ft in the U.S. and typically lower in Europe (depends on a country). Jets including small private jets are almost always on IFR. Airliners with passengers - always.

Don’t call me Shirley!

For the confused (or to get more confused!):

https://youtu.be/bZe5J8SVCYQ

Russian propaganda does not say that. Putin himself said on multiple occasions that any theories of staging moon landings are silly. Don’t have a reference at the moment but I have seen several Putin’s interviews to that effect.

Russian propaganda is alive and well on many topics but denying American moon landings is not one of them.

One does not need a lot of bandwidth to trade successfully. In fact, a limited number of signals agreed upon ahead of time is enough. E.g. signal “A” could mean “buy 10 contracts”, signal “B” - “sell 100 contracts”, etc. And you can of course wrap 256 such signals into one byte. So transmitting a single byte at an opportune time let’s you control your trading on the other continent in a quite precise fashion. If you make such transmission, say, 10 times per day your bandwidth utilization is technically 10 bytes per day or about 0.001 bps - yet you can make a ton of money.

Could be these guys - they are publicly advertising Chicago to Europe data link via HF radio (for traders, of course):

https://www.raft-tech.com/

Could be the same pilots who do cherry drying: https://youtu.be/UBe9GEhc7pE

Respect and courtesy are nice but I think the reason this style is so effective is different. It makes the counterparty believe that you are collecting the paper trail to file a lawsuit. And behaving like you are preparing to file a lawsuit is much more effective than just claiming you will be filing a lawsuits.

I imagine that when presented with a choice of $88 payment or having to deal with a lawsuit, 100% of decision-makers will chose the former. And it’s not about the lawsuit outcome. Even if some complete garbage is filed which has no chance of success, the burden it creates on the business is clearly much higher than $88.

Oh man. No protections against abuse for sure!

And I know a business owner who is shopping for a new house after getting a PPP “loan”. Sure, PPP money is supposed to be used for payroll. No problem, one can indeed use PPP money for payroll 100%. But then use the business revenue, 90% of which would normally be used for payroll, to take out a nice bonus and buy a house.

Why do we pay taxes then if the government can just borrow that money?

So, what if a business was successful, not impacted by covid, and wasn’t planning to lay off any employees anyway? Say, technology consulting company with 100 employees. Took out a PPP “loan”, which will be promptly forgiven since they keep the staff, who gets to keep the money? Something tells me 100% goes to business owner and 0% to employees.

I think there are quite a few companies like this. Hence “money goes to those who least need it”.

Comments about storage costs are nice theory but don’t tell me those storage costs went up 50 dollars a barrel to cause CLK0 to go from +10 to -40 within something like 30 minutes. It was all forced liquidation by brokers like IB and people absolutely bamboozled by negative prices puking their positions. Nothing to do with costs for actual storage.

Strategic Petroleum Reserve uses salt caverns to store crude oil and has the capacity of 797 million barrels [1], which is equivalent to roughly 500-700 larger tankers. Both construction cost and carry cost per barrel are, of course, much lower vs. tankers.

[1] https://en.m.wikipedia.org/wiki/Strategic_Petroleum_Reserve_...

Would creating, say, online marketplace to help people lose desired amount of money with certainty - for example, via some sort of specially crafted financial instrument - violate any applicable rules & regs? Idea for the next YC batch?

Ironically, the per-terabyte price to buy HDD storage these days is roughly equal to what Amazon charges for object storage per month.

Source: Amazon store ;)

Yeah but those with the term of one day is just replacing maturing repos - not adding new ones.

I hope one day we stop comparing rail to cars on passenger-mile basis - like infrastructure costs per passenger-mile. These are apples and oranges. There is zero similarities between riding on modern trains and driving.

I’ve taken hundreds of trips, anywhere between 2 and 8 hours, on TGV, ICE, and Eurostar trains in Europe. I loved it every time and came out refreshed even after longer trips. At times when I wanted to get work done (probably 60-75% of total time spent on trains) I was as productive - likely more productive, due to lack of distractions - as at the office. In contrast, I don’t think I can remember any road trip lasting more than 2 hours when I could say I enjoyed it; many times I was so exhausted that I needed rest upon arriving to destination.

So, if we are going to try to fit this into some sort of economic model let’s not forget about countless billions of hours of productivity loss due to people stuck behind the wheel staring at traffic.

Not to mention both emotional and physical strain associated with driving (nope, can not stand up when you like, or walk over to the buffet car for a coffee), respective health care costs, and more productivity losses. Once we do that, the picture will be very different. It’s sad we in the US haven’t realized this yet.

HFTs quote in a given symbol, often derivative e.g. “AMZN 2000 strike call option” based on market in another symbol, often outright e.g. “AMZN stock“. They are willing and happy to trade at prices quoted while market in AMZN remains what it is. Once it moves, they re-price their quotes in option(s). Their quote sizes are usually pretty small.

Spoofers put out orders without intention to trade. In fact, usually they would be horrified if their entire order trades. Their order price is not based on another market; their only intention is to impact prices in the book where they put the spoofing order. To achieve that, they often use disproportionately large order sizes, such as posting quantity 1000 where most other orders are between 1 and 20. Often they keep “applying the pressure” on the market by modifying the large spoofing order multiple times towards the market - moving the sell order lower and buy order higher - not as a response to changing market conditions in some other instrument but with the sole intention of impacting the price in the book in question.

This is great but what jurisdiction does SEC have over Ukrainian entity? Sounds a bit like robo-callers with gozilian in fines issued and near zero collected.

One more interest feature which was not clearly described: you can attach two or more ssh connections (belonging to the same system user) to the same tmux session. Each displays the same thing in real time and has full control.

We use this all the time for these two use cases:

1. Semi-permanent connections to the same tmux session on the server from multiple locations e.g. work and home. Come home and find things exactly the way you left them at work, and vice versa.

2. A sort of collaborative environment. We have something like “demo” user running tmux session, and multiple people from different remote locations login as “demo” and attach to the same tmux session. Again, everyone has full control and we can see each other’s actions as we also talk on the voice call in parallel. Usually much better experience vs. some sort of screen+control sharing solution, especially when some participants are on low-quality connections.

These “income share agreements” seem to be an emerging phenomenon. I wonder if anyone here could comment on any limitations to their use. When someone voluntarily signs an agreement giving me P percent of their income from working as E, for Y years in return for some consideration C: are there restrictions on (P, E, Y, C)? And what sort of laws/rules generally regulate these in the U.S.?

You may want to correct “receieved” typo here:

https://codebreakersacademy.com/about-us/

This is why I enjoy HN community

I’ve seen several combinations of B’s and 8’s - like “8B88B8”. Wonder how effective they are at confusing plate readers.