actually, I don't believe you can buy more STX shares with Beach's 20c cash offer.
Beach's cheque in the mail will be followed by a CGT bill in the mail if your buy in is sub 20c. Now for WGO shares held over 1 year you get the 50% discount, for shares held less than a year, no 50% discount. Either way 32.5c tax in the $ takes a sizable chunk out of your profit, = less STX shares than if you went with STX's offer. With the merged STX/WGO entity = no shares sold = no CGT.
Now, if your buy in is 20c plus, no CGT but no chance to recoup your loss by staying with a merged STX/WGO going forward and with the synergies it has.
Not financial advice, consult a professional.
WGO Price at posting:
18.0¢ Sentiment: Hold Disclosure: Held