Just watch that support line, we can't go any lower without it breaking and if we do we're f**ked
But do you mean:
1. This is such a strong support line - no chance that it will break - hold
or
2. If it breaks such a strong support line - then it will go down back to 400s and maybe even it will retest 339. Sell now when you still have some profit.
I would be quite surprised if it did break due to it's large significance over the past 2 years.
On 'normal' volume I would not expect it to break but you never know with this SR auction we might get some high volume dumps.
Anyway, I'm bullish and think after the auction will be the best time to buy a long as we are above the support line..