Market Internals (taken from sandp500analyst.com)

TRIN ($TRIN)

A contrarian indicator to detect overbought and oversold levels in the market. Because of its calculation method, the TRIN has an inverse relationship with the market.

Trending up = bearish Trending down = bullish

If the trin stays between =
.45-.60 = bullish
.65- .80 = neutral
.85- .95 = bearish, over 1.00 = bearish

First test of 1.5 = Over sold, buy signal
First test of 2 = Over sold buy signal

If TRIN opens at 2 and starts going down, that is a buy signal.

TICK ($TICK)

The Ticks compares the number of upticking (price increasing) and downticking (price decreasing) stocks on the NYSE (New York Stock Exchange), and calculates a ratio showing whether there are more upticking or downticking stocks.

Trending up = bullish Trending down = bearish

Over bought = + 800 and +1000
Over sold = -800 and - 1000

If you are preparing to go long, and you get a + 800 TICK reading, you may be better off waiting for a pullback. That's even if you're trading a stock and not an index. They can be used very effectively in conjuntion with major support/resistance areas.

You can also look to trade took hooks up or down, that take place near the low or high of the TICK's range for that day.

VIX ($VIX)

The CBOE Volatility Index® (VIX®) is a key measure of market expectations of near-term volatility conveyed by S&P 500 stock index option prices. Since its introduction in 1993, VIX has been considered by many to be the world's premier barometer of investor sentiment and market volatility.

Trending up = bearish Trending down = bullish

If market is up, vix down = bullish, If market is down, vix up = bearish, Market up, vix up = bearish and vice versa

Market Breadth ($ISSU)

Trending up = bearish Trending down = bullish

If the market breadth is over 1.5 = bullish, better to look for long entries, between 1.5 and .5 = neutral, under .5 = bearish, I will only look for short entries

Put/call (PCC-ST)

Trending up = bullish Trending down = bearish

If the put/call ratio stays below = .45 = very bearish, .45-.65= bearish, .65- .75 = slightly bearish, .70- .85= neutral, .85-.95 = bullish, over 1 = very bullish