Pretty basic question, anybody can explain ?

On Monday I bought ZYZ stock.

After hours: TWS showed bid: 32.30 ask: 32.38 And it was not changing all the time up to 7pm.

At about 5pm I went to check news on Yahoo Finance for this XYZ stock and saw after hours the stock jumped 1.5%

Anybody can explain this ? I would appreciate it. Thanks

 

Is that an actual ticker "ZYZ"? Probably not. Check the news for any announcements.

 

Well it is not an actuall ticker of course. My point is that on Monday the stock jumped after hours 1.5% from the monday's closing price according to Yahoo Finance.
But I did not see any change in price in my TWS. Is it possible ? Why it is so..

 

Don't know, maybe TWS is not showing afterhours trading.