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$3500/mo for splits and dividends is crazy. The data isn't that valuable and you can mostly get it for free by web scraping various sites. I'd pay something for a feed that's more convenient, more timely and more reliable than scraping, but probably not more than $50.

ZPRMN

Worth considering with the special ET pricing if the data quality is good. Is there anything you can tell us about the completeness and timeliness of the ORATS split/dividend data? Between the providers I looked at so far, the quality is shockingly variable.

Thank you Matt, It does look like the ORATS Daily Price endpoint could be used to get the current adjustment factor (clsPx/unadjClsPx). However with the limit of 10 tickers per call and monthly limit of 20K API calls it would not be possible to get whole market coverage using this method. Is...

How do you deal with the flakiness of the Nasdaq API? Just only insert in the database and never delete? I guess keeping some outdated dividends around is better than missing half.. How do you get dividends from IB? Do you use that Wall Street Horizon thing?

Back in the day, I used to use Yahoo! Finance API to fetch the adjusted previous close, and use that to calculate the true adjusted change % intraday. What are some of the best sources of this data currently? I have looked at IEX,polygon,FMP,nasdaq.com,marketchameleon.com free split & dividend...

This works with box spreads so theoretically it could/should work with t-bills too - AFAIK they are both held in the securities segment of your account. Let us know if you try it.

Weird journal. If my strategy is losing money for more than a few weeks in a row I'm already cutting my size and losses. Size should be down to zero well before losing 10 percent of equity. I cannot comprehend why someone would keep trading for YEARS with no edge.

Virtu famously lost money on only one day out of 5 years. It's definitely possible to be green every month.

Even though I found a broker willing to open the account, I discovered a fatal flaw in the idea of holding the account in the US: BEAT. https://taxfoundation.org/taxedu/glossary/base-erosion-anti-abuse-tax-beat/ By imposing a 10% tax on profits before deductions for payments to related...

I've inquired with 3 brokers about whether they could open an account for a US C-corp where one shareholder is Canadian resident. So far, One said yes it's no problem, what matters is the company's residence. One said they won't do it if any "partner" is Canadian resident. (Maybe they thought...

Thanks, I am in touch with him. The rest of your post, I don't really understand how it relates to my question.

I've opened many accounts with US brokers using my Canadian passport. So it's clearly the part about being resident that makes the difference. That one article referenced in your linked thread that talks about citizenship is incorrect. I suspect one reason relates to the tax information...

Thanks for the link. As I mentioned, I do high frequency stuff so I can't use just any old broker. IB definitely falls in that category, they are very slow.

I've been trading US equities professionally for nearly a decade now. I've been offshore to optimize taxes but now I'm looking to move back to my home country which is Canada. I want to continue to trade but there's a problem. The US based brokers I work with do not deal with Canadian resident...

The incredibly obvious solution to this problem is to design the exchange engine such that erroneous executions are not matched in the first place. In other words if an exchange matches a trade it should be "not erroneous" by definition. EDIT: I know, keep dreaming, right?

You don't get it. The problem is when the broker doesn't calculate the cap properly and you can't even buy at the ask. This can happen for any number of reasons; there are a ton of edge cases to handle and brokers definitely can not be trusted to get this right.

It becomes a problem when the broker's cap calculations are screwed up and they stop you from trading for no good reason. Worst case scenario, big losses because you can't exit a position.

For orders that are routed to an exchange I think it would make a lot more sense for the exchanges to implement the price caps instead of brokers. That way every participant on the exchange would have an even playing field, and not to mention it would be way easier for brokers to be compliant.

This is fantastic! I've added you to my NTP cluster. Lowest ping of any server in my list currently.