If nothing else this is notable for merely how long the Rydex ultra short NDX fund(RYVNX) had been on a continuous sell signal on its LONGTERM category(not short-term) for "eons" and finally changed it to buy TODAY.
It had been in a continuous LONGTERM sell mode longer than any index on RYDEX, 539days!
So it is now listed as days 0 as the signal just was put in place.
Their criteria is automatic.
This explains the criteria for an automatic change from sell to buy in the LONGTERM category
<<PRICE MOMENTUM MODEL SIGNALS
The SWENLIN PRICE MOMENTUM MODEL is intended to catch long-term price moves.
Model Signals are mechanically generated by a 200-day exponential moving
average crossover in conjunction with a 10% price move in the opposite
direction of the current signal extreme. For example, assume that the current
signal is a BUY. If the price drops 10% from the signal high, and also drops
below the 200 DMA, a SELL Signal will be generated automatically. The
MOMENTUM MODEL SIGNALS work best when prices are trending and changing
direction smoothly. When prices are volatile, particularly in a 10% range,
results will be extremely poor. By design, these signals will always miss at
least the first 10% of a move. Rather than wait for a signal reversal, it is
best to use trend analysis and other indicators to decide when to exit a
position. New signals should alert you to the possibility that a change in
direction is taking place. Once alerted, watch price movement and other
indicators to determine an optimum entry point, if any.>.
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