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Scan Center
Shared Scans
TD%F

Name
TD%F

Submitted by
Chad Payne

Periodicity
Daily

Elements
CL: Close
PREV: Yesterday's Close
OP: Open

Explanation
This scan is based on the TD%F described in Thomas DeMark's book DeMark on Daytrading Options.  First, you should create a quotepage of call options which are just slightly "in-the-money" and very near expiration.  Then create a Scan which runs on this newly created options quotepage, with a "Daily" periodicity, and with the simple signal below.  When an call options reaches this level, DeMark considers this an entry point.  This scan should be run frequently throughout the trading session.  The signal finds options whose current price is between 48 and 55 percent of the previous days closing price.  The option must not open below 55% of the previous days close.  A similar signal for put entry is also shown below.

Signal

Call Entry
(CL >= (PREV*0.48)) AND (CL <= (PREV*0.55)) AND (OP > (PREV*0.55))

Put Entry
(CL >= (PREV*1.90)) AND (CL <= (PREV*2.04)) AND (OP < (PREV*1.90))

Parameters
No parameters needed for this scan.
Import
To import the scan into Investor/RT, simply copy the italicized text below into a text file, save the text file, and then from the Investor/RT menu, choose FILE:OPEN:FILE and then select your saved text file.  Ensure that your parameters and periodicities match those above.

BEGIN INVESTOR/RT SCAN DEFINITION
COMMENT=TD PERCENT FACTOR from linnsoft.com
SOURCE=Chad Payne
DATE=07/06/99
VERSION=3.7
DATAFEED=myTrack
NAME=TD_PERCENT_FACTOR
QP=.Options
PERIODICITY=0
ELEM=CL:Close
ELEM=PREV:Yesterday's Close
ELEM=OP:Open
SCAN=(CL > (PREV*0.48)) AND (CL < (PREV*0.55)) AND (OP > (PREV*0.55))
ALERT=NO
SOUND=NO
FREQUENCY=0
-
- Comments
-
END INVESTOR/RT SCAN DEFINITION