Technical analyst Rich Ross has a message for those considering buying stocks at record-high levels: Hold your horses.
"Anyone can trade the breakout, but you have to hold the breakout," Ross said. "So what you want to see is a Friday close above that old high of 2,130, 2,135. And in fact, we really want to see consecutive weekly closes above that level."
Ross' concern is that a risk-reward analysis doesn't favor buying stocks at these levels.
"If this is the beginning of the next secular multiyear bull market — of which I'm not convinced — then waiting two weeks is not going to kill you. But what will kill you, metaphorically speaking, is top-ticking a 7-year-old bull market … on a false, unconfirmed breakout to an all-time high."
"That would be bad," Ross added. "So let's wait before we get too excited about this breakout."
In addition, he warns that the "broadening top pattern" he spots "could suggest an impending reversal."
"Typically, I like a fresh breakout to an all-time high accompanied by strong breadth as much as the next trader," Ross said, "but in this case, not so much."
Prior to this week, the S&P had not closed at record highs in four consecutive sessions since November 2014, according to S&P Global.
Clarification: This story was revised to include dropped words "is a Friday close" in one of Ross' quotations.