"Should the takeover be successful and rms subsequently goes to 50c, that’s another 10c, making your exu worth 25c??"
Not quite. Any increase in RMS share price would be divided by 4, as you've paid 4 EXU shares to get 1 RMS share. RMS would have to go to 80c for the EXU equivalent to be 25c.
EXU Price at posting:
13.0¢ Sentiment: Hold Disclosure: Held