Why the ADR stock price move in different way that its price in its market? For example, today, the TEVA stock was up in israel market while it is much down in its ADR
They are always basically at the same price at the same time, as any difference gets arbitraged away. I did see some longer lasting difference, but that was only during non functional markets, ie. no liquidity in ADR / main market, prior to special corporate action, or very hard to borrow during short squeeze. Of course if you look at daily closes they are different, as they are at different times. Also check out currency fluctuations. Stock can be flat and ADR up 1% if $ weakens 1%.
%% Good points. TEVA has had some unusually good bull runs/ that is ,when it closed above $14+not lately . I've been also buying + selling metals for years still surprised @% difference in same state ; occasionaly 100% difference on bid prices. 10% difference is real common among dealers with in 30 miles of each other. Closer to home, even in same state i could to afford pay more =less transportation expense+ no tariffs. Another extreme example\ is stock is frequently cheaper to employees; but that price is not available to public.