Bayd76, FWIW I've held DDR for many years, used to have a...

Bayd76, FWIW I've held DDR for many years, used to have a sizeable 6 figure holding. I think the price has reached it's short term potential for a while and as such I have reduced my holding to a token amount. Not to say that the price won't keep appreciating, but in my view the risks are increasing; for example (list not complete!):
1/ general recession leading to reduction in tech purchases
2 / loss or key supplier (always a risk, losing HP was the last biggie I recall)
3 / David Dicker isn't getting any younger, what will be the impact if/when he reduces his influence on the company?
4 / Will David/Fiona ever decide to cash in their huge shareholding and enjoy their retirements? Who will these shares go to and what will be the impact on SP?
5 / Trade war (no idea what this means in fact but it sounds bad!! Perhaps application of tariffs which reduce sales and add administrative complexity)
6 / Funding for new warehouse - how much, how? Cap raising? Withhold/Reduce Dividend?
7 / General market collapse, imo the market generally is stretched, DDR valuations are pretty high at the moment - p/e of 26?

I'm sure there's more and others can add to the list. But in response to the OP I personally wouldn't keep buying more just because it has gone up in the recent past. Again only IMO this is not a "growth" stock like ATP, APX etc but a mature business which has just been re-rated.