Starwood

Would be helpful if you provided an ISIN, SEDOL or ticker so that we could at least identify the exact stock and avoid confusion over similar names listed on different exchanges.

Assuming you are taking about US85571B1052, surely the recent news headlines give you the reason ? (i.e. gap down after earnings miss).

Also, assuming it is US85571B1052, if you're panicking about a stock being down from 23 to 22.5, perhaps the stockmarket isn't for you ? (Or at least picking individual stocks).   You need to be able to ride out the short-term volatility and take the medium and long term views.

If you're talking about GG00B79WC100, then same again, read the news ? (i.e. they've just done a placing).

And same again, panicking over a fall from 107 to 104 ?

You don't need to subscribe to anything to read company news.  Both events listed above could be found in the relevant RNS.