Just need to compare falls in other Nickel producers to get a feel for where Sirius would be without the offer on the table, in particular, Western Areas. When you compare the respective charts you will see the impact the offer has on the SP, its pretty clear.
IGO Price at posting:
$3.32 Sentiment: Buy Disclosure: Held
SIR Price at posting:
$2.72 Sentiment: Buy Disclosure: Held