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The best explanation is that AMC has not been trading on fundamentals for two years. The apes see APE as a second class citizen. Shorting AMC and going long APE carries the risk that APE will trade closer to fundamental value than AMC has been.

You need Ameritrade to "mention it" before you trade? Why do you care?

These are not "market makers" in the traditional sense. If you call the 1-800 number at TD they refer to them as "market makers" and it just makes your blood boil.

https://www.sec.gov/ix?doc=/Archives/edgar/data/0001639825/000163982522000100/pton-20220825.htm

Yes, IB does not show all trades on the charts you see. Other big brokers do not either. You'd complain and call them if they did. You can direct orders to a particular exchange at IB if you prefer. Or you can use their SMART router. They won't send it to PFOF guys with SMART. All orders go...

I'm not going to write an academic paper here with all the details but the high level version is that I wrote software to send orders at identical times to both IB and TD and compare total costs. Sometimes TD was over $100 higher cost when spending just $5,000. These were trades for volatile...

How do you know? lol

The rules are different for them. They can essentially do a contract for difference, they just call it something different. A CFD kinda looks like a credit default swap. Not identical but you are just making side bets on some asset. Same thing.

Plus exchange fees, SEC fees, etc. I'm well aware of all the costs as I've been paying them! lol. And I took every bit of that into account in my testing.

Yep, I believe that's not allowed.

Also keep in mind that if you really want ticks you will then have to look at the trade condition for each one and decide if it is meaningful to you. This is not a trivial matter and you can't just filter out trade conditions you are not interested in and accept the others. You'll see trades...

Interactive Brokers. Their API is great. TWS is a bit frustrating but I hardly use it.

Not in my case and I tested it thoroughly. There might be one exception. If you are buying/selling stocks over $1 that have a 1 penny spread and you are buying/selling only 100 shares at a time then it should be difficult for the PFOF guys to take advantage of you. But this isn't a typical...

IB's API is great but it's not meant to be used as a data source. You will drive yourself crazy. Polygon.io is the best I have found for reliable data and an API that is clean and straight forward. So use IB to enter orders and polygon to get data.

"free" trades don't have a cost per trade. It's a statistical process. The biggest penalty you take with a "free" trade is missing out on dark liquidity between the spread. The SEC allows Citadel (your "order processor" that robs you and who TD sells your order to) to give you NBBO or better...

Because macro economic forces impact all businesses to different degrees. (Everything in the stock market is correlated and when volatility spikes correlations move toward 1)

"free" trading is absolutely not free. And you can prove it. No need to throw around subjective ideas and pretend you are calculating something.

TWS sure isn't as good as TOS but for running my algorithms their API is the bomb and I do feel like their SMART router is doing a good job. If someone has very detailed data on where it is failing us I'd like to see it.

Enjoying your "free" commissions at the other places? lol.

Yes, it's true. Options are a side bet. When you create an options contract you did not also create a physical asset, productive business, etc.