When you bought it, you are a holder. It is a matter of good intention.
On the other hand, when you already sold it, you are no longer a holder although it has not been settled or you have not received the money. It is a matter of good intention to let other posters know about your holding position.
Settlement is a matter of administrative process.
SDL Price at posting:
0.5¢ Sentiment: Buy Disclosure: Held