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Thanks a lot for the feedback. I will have a look at Julia as well. The objective is primarily analysis only, so I guess R should be sufficient, however, I won't rule out future expansions, so I guess I will pass on R and look for a more general purpose programming language for that. Thanks again.

Because the broker doesn't know if you are holding the short position overnight or simply closing it out on the same day. Moreover, the trade must be settled, whether it was closed out on the same day or not. If brokers don't locate the shares in case of intraday shorting and covering, then...

Read this from IB (Futures Options Physical Delivery): https://www.interactivebrokers.com/en/index.php?f=1567&p=delivery Most other brokers will follow the same methodology unless the broker allows physical delivery of futures held to expiration.

Well, if done through an SPV, you can essentially default the SPV leaving the lenders with the collateral to recover their money.

That has nothing to do with capital efficiency. They realized that Softbank screwed them. They invested 10's of Billions of dollars in Softbank related portfolios and startups and they discovered that they have been ripped off big time, but too late. This loan is an alternative to an exit from...

It looks like they are not there anymore (I checked on IB website, they are not there), though they charge cancellation/modification fees for orders directed through the API (US stocks) in special cases. But it's true, the option exchanges used to charge order cancellation fees before, but...

Thanks for the clarification, it's always good to get the insight from someone within the field & have expert knowledge.

When you cancel an order, you are actually removing liquidity from the book and they don't want this to happen, hence why they charge the cancellation fee. It's unfair by all means because they don't credit you when you place your order (Inject liquidity), they only credit you when your order...

You are absolutely right. Things change and progress is made continuously and what was impossible just 30-40 years ago is now in the hand of every child on the planet. I am just saying that based on my up-to-date knowledge. My wife is a pharmacist and I have a bunch of doctors in my family, so...

Can you imagine why this announcement is out, magically, on May options expiration date??

I am not a doctor but I have some basic medical background. Viral Infections DO NOT have cures, you can only immune yourself against a certain viral infection through a vaccine. If you have not been vaccinated earlier and you get infected, there is nothing you can do except to let your immunity...

Doesn't happen with me, I click on the offer and it opens a buy ticket, normal. Maybe you experienced a bug. Simply add the option to your watch list and see what it says in the position column 1 or -1.

Your option value changes based on several factors, so the premium change you see is the net effect of all those (Delta, Vega and Theta being the 3 most influential ones). The P/L you see highly depends on your broker (IB) position valuation algorithm. You also have to know that VIX Index...

Some points here seem valid, others not. It's true that a large portion of the FX liquidity is controlled by around 4-5 banks as mentioned (Citi, Deutsche, JP Morgan, UBS). These are the banks with the most connections to corporations, transacting with them for international trade and foreign...

Agree, some hedge funds might use the FX market to protect their global portfolios & neutralize the effect of currency moves. It largely depend on the Hedge Fund strategy in the first place. Some Hedge Funds are non-directional, some are quants, some are macro, some are pure directional, some...

I do GDX only. Have positions from $16.5 and $22. Still expecting it to go much higher

There is enough liquidity in Airline stocks to offload a 5% stake over the course of several days. Take Delta Airlines as an example, if Buffet owned 5%, that would be around 30 million shares, not a problem to sell those over the course of 4-5 trading sessions. All transactions must go through...

No you don't have to pay interest. You only pay interest when you purchase securities with a gross value of more than $20,000 (In your case), hence you get financed by IB by whatever the amount above the $20,000 and that's what you pay interest on.

Yes, they used to do and it was revealed (Read this: https://en.wikipedia.org/wiki/Forex_scandal). It wasn't exactly that they were sharing the direction of the market or their order flow, they were organizing a coordinated fix for the WM/Reuters Spot rates. WM/Reuters fixes are considered the...

Buffet did not listen to the Fed probably.