The following indices DDF calculates and sends down the feed once every second.

$TICX:NYSE TICK - actual value
$TICK:NYSE TICK - value of the $TICX + 10,000

$TICX is defined as the number of stocks ticking up minus the number of stocks ticking down on the NYSE. 
If $TICX reads +500, for example, then there are 500 more stocks on the NYSE ticking up than there are 
ticking down. Conversely if $TICX reads -500, this means 500 more stocks are ticking down than are ticking up. 

If $TICX is displaying 500 then $TICK is displaying 10500. If $TICX is displaying -500 then $TICK is displaying 9500.

$NSHU:NYSE number of advancing stocks 
$NSHD:NYSE number of declining stocks 
$NSHF:NYSE advancing stocks minus by NYSE declining stocks
$NSHR:Ratio of NYSE advancing stocks divided by NYSE declining stocks

$NVLU:NYSE combined volume of advancing stocks
$NVLD:NYSE combined volume of declining stocks
$NVLF:NYSE advancing volume minus by NYSE declining volume
$NVLR:Ratio of NYSE advancing volume divided by NYSE declining volume
(volume in millions)

$TRIN is defined as the number of NYSE advancing stocks minus NYSE declining stocks divided by NYSE advancing 
volume minus NYSE declining volume.

$TRIN = ($NSHU - $NSHD) / ($NVLU - $NVLD)

NB: DDF uses the total volume of shares traded on the NYSE to calculate the share values. Some other sources use 
only the shares traded through NYSE itself to calculate the share values.

The following indices DDF calculates and sends down the feed once every minute.

$TIKX:DOW TICK - actual value
$TIKI:DOW TICK - value of the $TIKX + 10,000

$TIKI is the equivalent of the $TICK but only for the Dow 30 Stocks.

Similarily for the NASD and AMEX exchanges DDF also offers:

$TQCK:NASD TICK + 10,000
$TQCX:NASD TICK
$TRIQ:NASD TRIN
$QSHU:NASD Advancing Stocks
$QSHD:NASD Declining Stocks
$QSHR:NASD Advance Decline Ratio
$QSHF:NASD Advance Decline Difference
$QVLU:NASD Advancing Volume
$QVLD:NASD Declining Volume
$QVLR:NASD Advance Decline Volume Ratio
$QVLF:NASD Advance Decline Volume Difference

$TACK:AMEX TICK + 10,000
$TACX:AMEX TICK
$TRIA:AMEX TRIN
$ASHU:AMEX Advancing Stocks
$ASHD:AMEX Declining Stocks
$ASHR:AMEX Advance Decline Ratio
$ASHF:AMEX Advance Decline Difference
$AVLU:AMEX Advancing Volume
$AVLD:AMEX Declining Volume
$AVLR:AMEX Advance Decline Volume Ratio
$AVLF:AMEX Advance Decline Volume Difference


*The following indices DDF calculates using exchange delayed data and sends down the feed once every 10-minutes.

$BCMM:Barchart Market Momentum Index
$MMTW:Number of Stocks Above 20-Day Moving Average
$MMFI:Number of Stocks Above 50-Day Moving Average
$MMOF:Number of Stocks Above 150-Day Moving Average
$MMOH:Number of Stocks Above 100-Day Moving Average
$MMTH:Number of Stocks Above 200-Day Moving Average

$ADRN:NYSE Advance Decline Ratio
$ADVN:NYSE Advancing Stocks
$DECN:NYSE Declining Stocks
$UNCN:NYSE Unchanged Stocks
$ADDN:NYSE Advance Decline Difference

$AVRN:NYSE Advance Decline Volume Ratio
$AVVN:NYSE Advancing Volume
$DVCN:NYSE Declining Volume
$UVCN:NYSE Unchanged Volume
$AVDN:NYSE Advances Declines Volume Difference

$ADRA:AMEX Advance Decline Ratio
$ADVA:AMEX Advancing Stocks
$DECA:AMEX Declining Stocks
$UNCA:AMEX Unchanged Stocks
$ADDA:AMEX Advance Decline Difference

$AVRA:AMEX Advance Decline Volume Ratio
$AVVA:AMEX Advancing Volume
$DVCA:AMEX Declining Volume
$UVCA:AMEX Unchanged Volume
$AVDA:AMEX Advances Declines Volume Difference

$ADRQ:NASD Advance Decline Ratio
$ADVQ:NASD Advancing Stocks
$DECQ:NASD Declining Stocks
$UNCQ:NASD Unchanged Stocks
$ADDQ:NASD Advance Decline Difference

$AVRQ:NASD Advance Decline Volume Ratio
$AVVQ:NASD Advancing Volume
$DVCQ:NASD Declining Volume
$UVCQ:NASD Unchanged Volume
$AVDQ:NASD Advances Declines Volume Difference

$ADRT:Total Advance Decline Ratio
$ADVT:Total Advancing Stocks
$DECT:Total Declining Stocks
$UNCT:Total Unchanged Stocks
$ADDT:Total Advance Decline Difference

$AVRT:Total Advance Decline Volume Ratio
$AVVT:Total Advancing Volume
$DVCT:Total Declining Volume
$UVCT:Total Unchanged Volume
$AVDT:Total Advances Declines Volume Difference

$ADRD:OTC Advance Decline Ratio
$ADVD:OTC Advancing Stocks
$DECD:OTC Declining Stocks
$UNCD:OTC Unchanged Stocks
$ADDD:OTC Advance Decline Difference

$AVRD:OTC Advance Decline Volume Ratio
$AVVD:OTC Advancing Volume
$DVCD:OTC Declining Volume
$UVCD:OTC Unchanged Volume
$AVDD:OTC Advance Decline Volume Difference

$HIGN:NYSE New Highs
$LOWN:NYSE New Lows
$HIGA:AMEX New Highs
$LOWA:AMEX New Lows
$HIGQ:NASD New Highs
$LOWQ:NASD New Lows
$HIGD:OTC New Highs
$LOWD:OTC New Lows

$NDTW - Nasdaq 100 Stocks Above 20-Day Average
$NDFI - Nasdaq 100 Stocks Above 50-Day Average
$NDOF - Nasdaq 100 Stocks Above 150-Day Average
$NDOH - Nasdaq 100 Stocks Above 100-Day Average
$NDTH - Nasdaq 100 Stocks Above 200-Day Average

$DITW - Dow Industrials Stocks Above 20-Day Average
$DIFI - Dow Industrials Stocks Above 50-Day Average
$DIOF - Dow Industrials Stocks Above 150-Day Average
$DIOH - Dow Industrials Stocks Above 100-Day Average
$DITH - Dow Industrials Stocks Above 200-Day Average

$S6TW - S&P 600 Stocks Above 20-Day Average
$S6FI - S&P 600 Stocks Above 50-Day Average
$S6OF - S&P 600 Stocks Above 150-Day Average
$S6OH - S&P 600 Stocks Above 100-Day Average
$S6TH - S&P 600 Stocks Above 200-Day Average

$S5TW - S&P 500 Stocks Above 20-Day Average
$S5FI - S&P 500 Stocks Above 50-Day Average
$S5OF - S&P 500 Stocks Above 150-Day Average
$S5OH - S&P 500 Stocks Above 100-Day Average
$S5TH - S&P 500 Stocks Above 200-Day Average

$S4TW - S&P 400 Stocks Above 20-Day Average
$S4FI - S&P 400 Stocks Above 50-Day Average
$S4OF - S&P 400 Stocks Above 150-Day Average
$S4OH - S&P 400 Stocks Above 100-Day Average
$S4TH - S&P 400 Stocks Above 200-Day Average

$S1TW - S&P 100 Stocks Above 20-Day Average
$S1FI - S&P 100 Stocks Above 50-Day Average
$S1OF - S&P 100 Stocks Above 150-Day Average
$S1OH - S&P 100 Stocks Above 100-Day Average
$S1TH - S&P 100 Stocks Above 200-Day Average

$DCTW - Dow Composite Stocks Above 20-Day Average
$DCFI - Dow Composite Stocks Above 50-Day Average
$DCOF - Dow Composite Stocks Above 150-Day Average
$DCOH - Dow Composite Stocks Above 100-Day Average
$DCTH - Dow Composite Stocks Above 200-Day Average

$DTTW - Dow Transportation Stocks Above 20-Day Average
$DTFI - Dow Transportation Stocks Above 50-Day Average
$DTOF - Dow Transportation Stocks Above 150-Day Average
$DTOH - Dow Transportation Stocks Above 100-Day Average
$DTTH - Dow Transportation Stocks Above 200-Day Average

$DUTW - Dow Utilities Stocks Above 20-Day Average
$DUFI - Dow Utilities Stocks Above 50-Day Average
$DUOF - Dow Utilities Stocks Above 150-Day Average
$DUOH - Dow Utilities Stocks Above 100-Day Average
$DUTH - Dow Utilities Stocks Above 200-Day Average

$M1HX:1-Month Highs Overall
$M1HN:1-Month Highs NYSE
$M1HA:1-Month Highs AMEX
$M1HQ:1-Month Highs NASDAQ
$M1HD:1-Month Highs OTCBB
$M1HH:1-Month Highs Price gt $10
$M1HL:1-Month Highs Price lt $10
$M1HV:1-Month Highs Volume gt 100k
$M1HU:1-Month Highs Volume lt 100k
$M1HE:1-Month Highs ETFS

$M1LX:1-Month Lows Overall
$M1LN:1-Month Lows NYSE
$M1LA:1-Month Lows AMEX
$M1LQ:1-Month Lows NASDAQ
$M1LD:1-Month Lows OTCBB
$M1LH:1-Month Lows Price gt $10
$M1LL:1-Month Lows Price lt $10
$M1LV:1-Month Lows Volume gt 100k
$M1LU:1-Month Lows Volume lt 100k
$M1LE:1-Month Lows ETFS

$M3HX:3-Month Highs Overall
$M3HN:3-Month Highs NYSE
$M3HA:3-Month Highs AMEX
$M3HQ:3-Month Highs NASDAQ
$M3HD:3-Month Highs OTCBB
$M3HH:3-Month Highs Price gt $10
$M3HL:3-Month Highs Price lt $10
$M3HV:3-Month Highs Volume gt 100k
$M3HU:3-Month Highs Volume lt 100k
$M3HE:3-Month Highs ETFS

$M3LX:3-Month Lows Overall
$M3LN:3-Month Lows NYSE
$M3LA:3-Month Lows AMEX
$M3LQ:3-Month Lows NASDAQ
$M3LD:3-Month Lows OTCBB
$M3LH:3-Month Lows Price gt $10
$M3LL:3-Month Lows Price lt $10
$M3LV:3-Month Lows Volume gt 100k
$M3LU:3-Month Lows Volume lt 100k
$M3LE:3-Month Lows ETFS

$M6HX:6-Month Highs Overall
$M6HN:6-Month Highs NYSE
$M6HA:6-Month Highs AMEX
$M6HQ:6-Month Highs NASDAQ
$M6HD:6-Month Highs OTCBB
$M6HH:6-Month Highs Price gt $10
$M6HL:6-Month Highs Price lt $10
$M6HV:6-Month Highs Volume gt 100k
$M6HU:6-Month Highs Volume lt 100k
$M6HE:6-Month Highs ETFS

$M6LX:6-Month Lows Overall
$M6LN:6-Month Lows NYSE
$M6LA:6-Month Lows AMEX
$M6LQ:6-Month Lows NASDAQ
$M6LD:6-Month Lows OTCBB
$M6LH:6-Month Lows Price gt $10
$M6LL:6-Month Lows Price lt $10
$M6LV:6-Month Lows Volume gt 100k
$M6LU:6-Month Lows Volume lt 100k
$M6LE:6-Month Lows ETFS

$MAHX:12-Month Highs Overall
$MAHN:12-Month Highs NYSE
$MAHA:12-Month Highs AMEX
$MAHQ:12-Month Highs NASDAQ
$MAHD:12-Month Highs OTCBB
$MAHH:12-Month Highs Price gt $10
$MAHL:12-Month Highs Price lt $10
$MAHV:12-Month Highs Volume gt 100k
$MAHU:12-Month Highs Volume lt 100k
$MAHE:12-Month Highs ETFS

$MALX:12-Month Lows Overall
$MALN:12-Month Lows NYSE
$MALA:12-Month Lows AMEX
$MALQ:12-Month Lows NASDAQ
$MALD:12-Month Lows OTCBB
$MALH:12-Month Lows Price gt $10
$MALL:12-Month Lows Price lt $10
$MALV:12-Month Lows Volume gt 100k
$MALU:12-Month Lows Volume lt 100k
$MALE:12-Month Lows ETFS

$MYHX:YTD Highs Overall
$MYHN:YTD Highs NYSE
$MYHA:YTD Highs AMEX
$MYHQ:YTD Highs NASDAQ
$MYHD:YTD Highs OTCBB
$MYHH:YTD Highs Price gt $10
$MYHL:YTD Highs Price lt $10
$MYHV:YTD Highs Volume gt 100k
$MYHU:YTD Highs Volume lt 100k
$MYHE:YTD Highs ETFS

$MYLX:YTD Lows Overall
$MYLN:YTD Lows NYSE
$MYLA:YTD Lows AMEX
$MYLQ:YTD Lows NASDAQ
$MYLD:YTD Lows OTCBB
$MYLH:YTD Lows Price gt $10
$MYLL:YTD Lows Price lt $10
$MYLV:YTD Lows Volume gt 100k
$MYLU:YTD Lows Volume lt 100k
$MYLE:YTD Lows ETFS