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Well, the conclusion is that it's not statistically significant as a PPE device in this particular setting. However, I recall that the study was flawed somehow but I am too lazy to re-read it. Newer studies do show some benefit to the wearer but much less than a proper respirator. If you are not...

Not really. Front-running (as defined by the SEC as opposed to zerohedge :D) very specifically has to take advantage of material non-public information about specific upcoming transaction(s). That's why guys who do fraud studies or recommend trades in the media, for example, are not considered...

The fact that the mask does not provide protection does not mean you should not wear one. Just like clothing. For example, your pants not only keep you warm but also prevent me from seeing your ugly butt.

https://wwwnc.cdc.gov/eid/article/26/10/20-0948_article Nobody is saying that it's 1-way filtering, however, as per this paper from CDC it does not provide adequate protection when exposed to the infected people. So the general idea that it is not a PPE, but is an important component for the...

Well, in fairness, deaths in Sweden are likely to be front-loaded while every other country is spreading them over time in hopes of a better treatment or vaccine. It's not clear if their approach was wrong, to be honest, it was just different. It was a consistent policy and they have stressed...

Cloth masks do not protect the wearer, but rather they prevent the exhalation of the vapor droplets and thus reduce the probability of person to person transmission. So you are not really deciding it for yourself but for others. It's an infectious disease, so if even if you are comfortable with...

You stole my thunder :P

The actual definition of front running is buying ahead of a large trade based on the advance knowledge of the trade (i.e. material non-public information). The advance knowledge is key here. If I tell you that I am long Tesla and you buy because I own it, it's not front running.

You do realize that it would actually make the collapse worse, right?

Sorry, where do you see front-running? They moved their best strategies from the public fund to the prop pool - there is nothing illegal about that. Everyone does that. Then they used "alpha capture", i.e. piggybacking on the trades by their best performers outside of their portfolio. Also...

In an identical situation at an adjacent firm, I price-checked the internal desk against the IDB and ended up trading with the with the street. You can imagine the type of anger that creates - how dares he not trade with us at inflated prices and instead going outside!

It was an OK year, enough for hookers and blow :)

Anyone who's been in finance for a long enough time would have stories like these, as well as fuckups that cost you money. The biggest one was definitely a result of a pure error, I've made 7 "units" during the flash crash because of a booking error. There was a bunch of far OTM options that...

LOL, it's evident from the very reason why these PFOF providers pay for the retail order flow. If you are a scalper, you are de facto making markets and are probably watching the tape very carefully. The market makers are trading with retail because it's uninformed flow and the market maker is...

If I recall correctly, you were able to get a job at Goldman Sachs after that?

As a side comment, it's incredible that it was the case. The whole idea of "up the staircase, down the garbage shoot" is as old as the hills, it's not that Black Monday was the first ever big move (though it was the biggest ever in recent history).

I gotta run to the gym before my slot is over (fucking hell), so I'll be brief about the topic that can take days to discuss. In short, the skew reflects the imperfect assumptions of the Black Scholes model. These are (a) normality of returns and (b) stationary volatility which clearly do not...

Depending on the species, the corals grow anywhere from 0.2 to 1 inch per year. So we probably talking hundreds of years to recover the damage. I hope Belize can twist the balls of his insurance company for some money and invest it into some reef recovery programs (environmental damage is...

https://www.spglobal.com/spdji/en/documents/methodologies/methodology-sp-us-indices.pdf Here you go. On the 4th page they have links to various supporting documents, too.

The general idea is that HFT MMs want "uninformed flow", i.e. guys who's trading is mostly random within their turnover horizon. Indeed, smart takers are probably scarier to a PFOF provider than a smart maker (a maker at least leaves them with the order optionality), but they don't like either...