$ON breached the 0.2 level!
Stay calm for two seconds. Make sure you understand the key price levels before acting.
Common ways to judge whether a break below the level is valid include: the close is below it, a retest fails to reclaim it, and trading volume increases as the price breaks through.
Indicators can fail, but risk management shouldn't be skipped: decide in advance what you'll do if you're wrong. That's more important than guessing right.