The exchange is not Island now -- it is Nasdaq, and that is the primary exchange for that security -- that is also why its volume is so high at...
This is the official open from Nasdaq, I can confirm with my own data. It is NOT a VWAP, as an earlier poster had speculated (a good guess, but...
One major problem: it is a long-only strategy on AAPL, which returned 100,000% since 1993 (approximately 20 cents to $200, dividends reinvested)....
Did ChatGPT write that?
Yeah, the INTC historical volatility was closer to the mark I'd say. In any event, I would not trust TDAmeritrade's API to pick my sock color...
Probably it's daily (based on trading days only). So, assuming that's true, and since "volatility" in the retail options world is really an sd...
It's under "account settings" => "trading settings" or something like that. I don't have account access at the moment so if you can't find it pm...
Lime does not internalize at all, as far as I know. Also, you can opt out of that new IB internalization on IB Pro. Also, many retail brokers...
Part of this is also due to the explosion in number of contracts (exp dates and strikes) as well as number of options exchanges, all of which...
What is the CPU? Also, why buy a "workstation"? IMO most typical use cases will run much quicker on a "mainstream" CPU such as 12900K by Intel...
There is merit to competition in and of itself, but there are now far too many venues that offer little to nothing that's truly different or...
There's an interesting admission implicit in the source article (published in WSJ today) repeatedly referring to Citadel as Robinhood's "biggest...
All excellent points, thanks! More generally, any case in which the client trades only against their broker inherently (and severely)...
One issue with many preferred's is that under an acquisition of the company, the new management can make your shares worthless (or nearly so),...
I am not an accountant but my understanding is that the "disallowed" cost basis should always get pushed to some new position, so you should never...
For those of us who use Ameritrade's more customizable features such as APIs, I'd say that it is good news that it is delayed -- hopefully,...
Nanex Nxcore provides the full OPRA feed including CBOE best bid/offer real time for all US options for a few thousand per month, or just the OPRA...
Off-exchange TRF data does come via the SIP feeds. Nasdaq Level 2 technically means top-of-book for each NSDQ market maker. This has become far...
Thank you for sharing your setup! I don't know if this is helpful at all in your case, but you can host a (much flatter!) server in a major...
NxCore has a beta Linux version and will support it eventually. I use it in non-production cases and it seems to work well. It also runs well...
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