Tracking the proposed new circuit breakers

[finpress2000]

Although the detailed proposal has not been published yet,
the SEC is proposing a temporary trading halt in any
S&P500 stock that falls 10% or more in any five minute period.

Some reports indicate a rise or fall of 10%.

Based on those two possibilities,
what is the best way (or any way) to continuously track the circuit breaker level(s) in QCharts?

-alan

[finpress2000]

No ideas from anybody?

If this means the answer is "no", may I suggest
that the Qcharts team please quickly
add a "study" that will support this.

Here's the rule:

Temporary halt if the transaction price of the security moves ten percent or more from a price in the preceding five-minutes.

So, what is needed are two calculations.

A = (Price - High)/High, where High is High over the
most recent 5 minutes.

B = (Price - Low/Low, where Low is the Low over the
most recent 5 minutes.

If either B >= 10% or A <= -10%, there will be a halt.
(>= means greater than or equal, etc.)

So, we need a study that will show a running calculation
of A and B -- that way you can tell how close we
are to a halt.

Personally, I don't use the studies beyond the Volume,
but this new one would be quite useful. It looks
somewhat similar to the ROC, as far as I can tell, but
the ROC looks not quite right for various reasons.

The new circuit breakers go into effect tomorrow!
http://www.sec.gov/rules/sro/bats/2010/34-62252.pdf