Read the Damn article! It is an extensive article, but it provides detailed information on put option trading days before 9/11.
Is there any truth in the allegations that informed circles made substantial profits in the financial markets in connection to the terror attacks of September 11, 2001, on the United States?
Arguably, the best place to start is by examining put options, which occurred around Tuesday, September 11, 2001, to an abnormal extent, and at the beginning via software that played a
key role: the Prosecutor’s Management Information System, abbreviated as PROMIS. [i]
PROMIS is a software program that seems to be fitted with almost “magical” abilities. Furthermore, it is the subject of a decades-long dispute between its inventor, Bill Hamilton, and various people/institutions associated with intelligence agencies, military and security consultancy firms. 
One of the “magical” capabilities of PROMIS, one has to assume, is that it is equipped with artificial intelligence and was apparently from the outset “able to simultaneously read and integrate any number of different computer programs or databases, regardless of the language in which the original programs had been written or the operating systems and platforms on which that database was then currently installed.” 
And then it becomes really interesting:
What would you do if you possessed software that could think, understand every major language in the world, that provided peep-holes into everyone else’s computer “dressing rooms”, that could insert data into computers without people’s knowledge, that could fill in blanks beyond human reasoning, and also predict what people do – before they did it? You would probably use it, wouldn’t you? 
Granted, these capabilities sound hardly believable. In fact, the whole story of PROMIS, which Mike Ruppert develops in the course of his book Crossing the Rubicon in all its bizarre facets and turns, seems as if someone had developed a novel in the style of Philip K Dick and William Gibson. However, what Ruppert has collected about PROMIS is based on reputable sources as well as on results of personal investigations, which await a jury to take a first critical look at.
This seems all the more urgent if you add to the PROMIS capabilities “that it was a given that PROMIS was used for a wide variety of purposes by intelligence agencies, including the real-time monitoring of stock transactions on all the world´s major financial markets”. 
We are therefore dealing with a software that
a) Infiltrates computer and communication systems without being noticed.
b) Can manipulate data.
c) Is capable to track the global stock market trade in real time.
Point c is relevant to all that happened in connection with the never completely cleared up transactions that occurred just before September 11,  and of which the former chairman of the Deutsche Bundesbank Ernst Weltke said “could not have been planned and carried out without a certain knowledge”. 
I specifically asked financial journalist Max Keiser, who for years had worked on Wall Street as a stock and options trader, about the put option trades. Keiser pointed out in this context that he “had spoken with many brokers in the towers of the World Trade Center around that time. I heard firsthand about the airline put trade from brokers at Cantor Fitzgerald days before.” He then talked with me about an explosive issue, on which Ruppert elaborated in detail in Crossing the Rubicon.
Max Keiser: There are many aspects concerning these option purchases that have not been disclosed yet. I also worked at Alex Brown & Sons (ABS). Deutsche Bank bought Alex Brown & Sons in 1999. When the attacks occurred, ABS was owned by Deutsche Bank. An important person at ABS was Buzzy Krongard. I have met him several times at the offices in Baltimore. Krongard had transferred to become executive director at the CIA. The option purchases, in which ABS was involved, occurred in the offices of ABS in Baltimore. The noise which occurred between Baltimore, New York City and Langley was interesting, as you can imagine, to say the least.
Under consideration here is the fact that Alex Brown, a subsidiary of Deutsche Bank (where many of the alleged 9/11 hijackers handled their banking transactions – for example Mohammed Atta) traded massive put options purchases on United Airlines Company UAL through the Chicago Board Option Exchange (CBOE) – “to the embarrassment of investigators”, as British newspaper The Independent reported. 
On September 12, the chairman of the board of Deutsche Bank Alex Brown, Mayo A Shattuck III, suddenly and quietly renounced his post, although he still had a three-year contract with an annual salary of several million US dollars. One could perceive that as somehow strange.
A few weeks later, the press spokesperson of the Central Intelligence Agency (CIA) at that time, Tom Crispell, declined all comments, when he was contacted for a report for Ruppert´s website From the Wilderness, and had being asked “whether the Treasury Department or FBI [Federal Bureau of Investigation] had questioned CIA executive director and former Deutsche Bank-Alex Brown CEO [chief executive officer], A B ‘Buzzy’ Krongard, about CIA monitoring of financial markets using PROMIS and his former position as overseer of Brown’s ‘private client’ relations.” 
Just before he was recruited personally by former CIA chief George Tenet for the CIA, Krongard supervised mainly private client banking at Alex Brown. 
In any case, after 9/11 on the first trading day, when the US stock markets were open again, the stock price of UAL declined by 43%. (The four aircraft hijacked on September 11 were American Airlines Flight 11, American Airlines Flight 77 and UAL flights 175 and 93.)
With his background as a former options trader, Keiser explained an important issue to me in that regard.
Max Keiser: Put options are, if they are employed in a speculative trade, basically bets that stock prices will drop abruptly. The purchaser, who enters a time-specific contract with a seller, does not have to own the stock at the time when the contract is purchased…..
Daniele Ganser: This is an important point. This is about demonstrating that there was insider trading on the international stock exchanges before 11 September. Specifically put options, ie speculation on falling stock prices were traded. Among the affected stocks were United Airlines and American Airlines, the two airlines involved in the attacks.
A colleague of mine, Marc Chesney, professor at the Institute of banking at the University of Zurich, has examined these put options. You first of all have to check if there may have been international speculation that the aviation industry would be experiencing a weak period and whether accordingly also put options on Singapore Airlines, Lufthansa and Swiss were bought. This was not the case.
Very significant put option trades were only transacted for these two airlines involved in the attacks. Secondly, you must examine the ratio of put options to call options and look if they had also been purchased to a similarly significant extent that would constitute speculations on rising stock prices. And that is also not the case. There were only significant put options and only significant transactions for United Airlines and American Airlines.
Now you need to look further in order to see who actually bought the put options, because that would be the insider who made millions on September 11. Most people are unaware that money was also earned with the attacks on September 11. The Security and Exchange Commission, SEC, the Securities and Exchange Commission of the United States, however, does not publish the information on who bought the put options, because you can do this anonymously. It is disturbing that this data is not made public.
What you have is the 9/11 Commission report, and here it is pointed out , that there has been insider trading, but that this insider trading cannot be traced to [al-Qaeda leader] Osama bin Laden, which means that it is highly unlikely that it had been Bin Laden….
Question: If this is not pursued any further, what does it mean?
Daniele Ganser: This means that the investigation of the terrorist attacks was incomplete, and always at the point where there are contradictions to the SURPRISE story, no further investigations are made. It looks very much as if one wants to examine only one story, the investigation is therefore one-sided. But this does not only apply to the put options
Read More: Asian Times