Are equity markets waiting for Godot? One good compromise out of Washington and we lift higher? Zacks' Kevin Cook doesn't think so. He's now turned into "sell the rallies" mode. While he remains a bull long term, he advises that investors take caution. Watch the video as he gives you his market timing expertise on why the odds of a bigger correction have increased and his stock market forecast for October 2013.

Why Zacks Investment's Kevin Cook says his probability of testing the June lows at 1560 has increased to 35%.

What if you had just one technical signal to warn you before the market tops? Watch the video as Kevin Cook goes over what he believes to be the best correction indicator.

Watch the video as Zacks' Kevin Cook shows you four charts in four minutes and gives you a look at the broader market from a technical perspective, including the price action of the market. More choppiness ahead, but current strength bodes well for 2nd half new highs.