Can't see NST holding its share price, page-1451

Exactly. You are allowed to sell whenever you want ,as long as you don't re-buy in the next few weeks in new FY for a similar price or higher price than what you sold for, without a legitimate reason eg a trading update that indicates future growth/profits then you can justify your reason for buying back in. They can't stop you buying back in if you have information that you can show you acted on. If you buy back in because the price drops substantially from what you sold for, then again, no issues there. That's profit making 101. They get a piece of that pie in income tax, and can't complain. If it's just for a small percentage of your portfolio and you can justify selling and repurchasing because of a new announcement or world economy news etc, then you should be absolutely fine.

It all comes down to logic and fairness, and you being able to show that you were doing it to MAKE PROFIT and not to AVOID TAX.