FNMA at 4.50+ had an RSI of 90+, it's ADX was at 70 (which I have rarely ever seen in a stock) it just was a 5-6 bagger within a few days and the at the candle was almost 2 bucks above the BB to the upside. Did you really fear it would run away from there???? :-)
Littlefish - FNMA - Fannie preferred are effectively trading at a deep discount to the common .... of course they might both be worthless. There are many preferred series trading, mostly redeemable at $50, but some at $25.
I have no position, but shorting the common and going long the preferred might be a good bet .... except there are no shares of FNMA available to short so it's strictly hypothetical.