Kävisiköhän tuossa Qt:n NYSE-listauksessa “Nokiat” eli rinnakkaislistattu osake nousee aina jenkeissä, mutta sitten Suomen aamupörssi avaa eilisen Suomen pörssin sulkuun 
Eli kaikki hyöty jäisi rapakon toiselle puolelle, kun esim. Nordnet ei anna ostaa Nokia ADR:ää, joka lienee kävisi myös Qt ADR:n kanssa.
E:
Vai oliko se nyt niin, että saa ostaa, mutta konversiokustannukset syövät kaiken edun siitä.
Mutta toki jos se NYSE vetää Qt:ta ylöspäin myös Suomessa, niin olisihan siitä etua. Vähän jäänyt fiilis, että jenkit eivät mielellään osta osakkeita Euroopan pörsseistä?
Pikahaku löysi tällaisen, jossa on pari mielenkiintoista kohtaa:
Direct Shares of European Stocks
This method is the most direct, though often the least familiar, to American investors who have only owned domestic securities. For the sake of illustration, let’s say that you want to own shares of a large chocolate company in Switzerland.
The specifics of how you go about buying shares differ based on the brokerage firm you use to execute your trades. If you are a retail investor, check with the institution with which you have a brokerage account. A brokerage should help you exchange U.S. dollars for Swiss francs for settlement, and it will also charge a spread and inform you of the final execution price and the commission amount. The commission amount will usually involve an additional commission for the local broker in Switzerland with which your broker has a relationship.
When the shares appear in your brokerage account, they will be shown without a ticker symbol (or with a ticker symbol that cannot be traded online). The shares will also be shown in the U.S. dollar equivalent, not the actual quoted price in Swiss francs. As a result, they can appear to fluctuate wildly, even if they have not changed in quoted value on the Swiss stock exchange. The custodian (which is probably also your broker) will tell you what the stock would be worth if you sold the position and converted the resulting Swiss francs to U.S. dollars.
Equally as important, any dividends received in Swiss francs are going to be automatically converted to U.S. dollars and deposited in your brokerage account as a net spread (in light of the currency conversion). Foreign taxes to the government of Switzerland will also be withheld, usually at a rate of 35%. To avoid this, you would have to go through the trouble of filling out a specific set of paperwork that claims your right as an American citizen, under a tax treaty between the United States and Switzerland, to opt for the lower 15% foreign dividend tax withholding rate.1 In rare cases, your custodian might be able to show the quoted value of the shares in Swiss francs and allow you to hold multiple currencies in your account so that the dividends also arrive in Swiss francs.
One drawback to this investing method is that it requires investing at least several thousand dollars per transaction. You may not technically need thousands of dollars to buy European stocks this way, but the added commissions and expenses will take a chunk out of your profits, and you can minimize their impact by trading in bulk. You may also want to consider prioritizing buy-and-hold investments to minimize the currency exchange costs that make switching between positions expensive.
Tuon kuvauksen perusteella hyvin samanlainen prosessi kuin täältä jenkkeihin päin, mutta vähän epäilen meneekö heillä veropaperit automaattisesti 
Tässä markkinassa toki kaikki puhallukset ovat mahdollisia.
Minä en ainakaan tiedä onko Qt 10 vuoden päästä edes olemassa, vai onko se kenties Suomen suurin pörssiyhtiö, joten koita nyt siinä sitten arvioida paljonko kassavirtaa tulee 