harmegido

15 ms·

91.
by harmegido 11y ago
I think this is absolutely what is meant by the value of history being in preventing previous mistakes. The lessons here could also likely be applied to Iran.
92.
by harmegido 11y ago
You don't get these freedoms as a student. Or at least, the school is free to discipline you (or kick you out) however they see fit for basically whatever reason. You'll notice that there was no mention of police in the article. O
93.
by harmegido 11y ago
The priority system of which market? There's something like 40+ exchanges where equities trade, each with different rules. There is no "market"
94.
by harmegido 11y ago
It looks like it says "valuation" now. However, he's not trying to pitch you on investing in anything, so he can use whatever language he wants. The point of the blog post that I took was that it is illegal to mislead potenti
95.
by harmegido 11y ago
Ok, so I did some quick numbers on performance. It looks like the first batch was in 2005, meaning ycombinator has been at this for 10 years. Have they always funded with 120k? Assuming that (and not present valuing the older money): Total
96.
by harmegido 11y ago
| because it's one of the few franchises that has been able to continually reinvent itself over the years. There are literally hundreds of such franchises. Just look at this summer's blockbuster lists. And in video games, there ar
97.
by harmegido 11y ago
That's because traders are generally flat at the end of the day. They don't have 30 years to wait for that knife to land on a rocketship and end up at the moon.
98.
by harmegido 11y ago
Individual investors really don't impact prices. It's big funds that are able to do very large trades that have an impact on supply/demand. And I'd also point out that nothing has to be bought/sold for prices to mov
99.
by harmegido 11y ago
I think they're concern is not foremost for the safety of the passengers. The main concern is airplanes going into buildings. Of course, this is definitely an example of fighting the last war. On a separate note, the TSA really pisses
100.
by harmegido 11y ago
I'd also point out that it can be more simple than that - what you've described is 100% arbitrage. However, perhaps someone simply buys several levels (sweeps) the BATS book. Assuming they didn't also take out ARCA and IWM an
101.
by harmegido 11y ago
Couldn't agree with you more. The question surrounding HFT should not be: "is this perfect?" , but instead should be: "is this better than before?". And also, I'd point out that it takes hundreds of thousands o
102.
by harmegido 11y ago
I disagree. Let's say that over the course of 1 second, there accumulate 100 lots to buy at 10 and 80 lots to sell at 10. Of those 100, who gets filled? There are several different algorithms for determining this in practice today, of
103.
by harmegido 11y ago
Haha you can say that about war too.
104.
by harmegido 11y ago
He's right though. Nearly a quarter of african americans in Florida are not allowed to vote - thanks in large part to the war on drugs, (well, and probably racism). Meanwhile, relatively very few people go to jail for insider trading.
105.
by harmegido 11y ago
There's this joke in trading: "You can't make money hedging." Of course, not losing $1 is the same as making $1. So to answer your question, you don't make money hedging, instead you prevent yourself from losing it.
106.
by harmegido 11y ago
I'm fine with this. I'll gladly take a trade where my probability of dying, via the general improvements gained from self-driving cars, decreases in most cases, but increases in other very specific, low probability cases. On avera
107.
by harmegido 11y ago
Just for future reference, you are using the term externality incorrectly. The word you seem to want to be using in its place is "competitor." Externality has a very specific, economics meaning: https://en.wikipedia.org
108.
by harmegido 11y ago
You say that like the TPP has passed?
109.
by harmegido 11y ago
In a random environment, there will be repeat winners produced merely by chance. See http://www.amazon.com/Fooled-Randomness-Hidden-Markets-Incer...
110.
by harmegido 11y ago
You have to find out why it stopped working. Was it an aggressive strategy that used to have a 100% fill rate, but now is only getting filled on 30% of the orders it sends out? Chances are that you've just become too slow for that trad
111.
by harmegido 11y ago
This would be an "aggressive" strategy. You get a signal from some source (looks like the author worked in news events, but the signal could be anything). If the signal indicates, via your model, that the product you are trading w
112.
by harmegido 11y ago
I think the more pressing thing to consider is P(injured player | play call). If you consider the fact that your quarterback is on the field for the 2 pointer, but not the 1 pointer (typically), the slight difference in point expectation is
113.
by harmegido 11y ago
Are you trying to imply that this didn't happen when computers weren't involved? Like the traders in the pits were all keen to make markets when volatility was spiking and prices were dropping?
114.
by harmegido 12y ago
The article completely buried the lede for me: very excited to here more about this company on the StartUp podcast.
115.
by harmegido 12y ago
I don't know... I've been looking through the comments to see if anyone else noticed the fact that the experiment was not a randomized control setup. They've let self-selection bias creep into the results, so I'm wonderi
116.
by harmegido 12y ago
I'm pretty sure you folks are arguing in the same direction.
117.
by harmegido 12y ago
They should be. There's no way the 5X charge is worth the active management. And yes, I realize that in this 10 year period it was, but that's just variance.
118.
by harmegido 12y ago
It's funny because the author did a similar trick. Vanguard's fees are 0.17. The pension fund paid ~0.25. That's a small difference because the numbers are small! Actually, that's nearly a 50% upcharge for the fund relat
119.
by harmegido 12y ago
I disagree with #2. I'm an individual investor. I can get into vanguard index funds for around a 0.05 fee, depending on the fund. The author estimates that the NYC pensions were paying a roughly 0.25 fee on their funds. That's a $
120.
by harmegido 12y ago
Not sure you really answered the question, which I found to be a very interesting one. The OP starts with these two assumptions, which it sounds like you agree with: 1) SMI is likely to occur at some point in the future. 2) SMI is likely to

More ›