Terranova said he was surprised by the S&P 500's ability to return to its previous highs.
"Ultimately, it all comes back to central bank policy," he said, adding that Japan's stimulus had "caught everyone short."
"You also have to factor in that oil continues to hover around $80. And everyone looks at oil around $80 and they say, 'Well, the S&P is not going to go up with oil trading around $80,'" he said. "And it's got everyone massively fooled, and I think that's where right now the mentality, the investment mentality, and the traders in the hedge-fund space you talk to right now is complete confusion. But central banks will continue to thrust the market higher."
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OptionMonster's Pete Najarian said that quarterly earnings results, which roughly three-fourths of the S&P 500 companies have reported, took stocks higher.
"When the focus goes back on the actual numbers, it seems like the markets go higher," he said, adding that CBOE Volatility Index is low once again. "Protection is cheap. The market can definitely go higher."
Stephen Weiss of Short Hills Capital joked, "Man, the nerve of those investors letting things like Ebola, China falling off a cliff, Europe collapsing distract them. That's terrible."
Weiss added that he was still long on U.S. growth, despite negative headlines.
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"The market sells off on that news when it first hits, and then it recovers and focuses on where it should, which is the U.S. because the U.S. is the strongest market because it's the strongest economy," he said. "I still think you want to be long the U.S. market, keep a little cash for events that happen like we saw mid-month again because they will happen again and you can buy them cheaper."
Rosecliff Capital CEO Mike Murphy brushed off the idea that the stock market was pulling forward next year's growth.
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"The spike up on the right-hand side of the V matches the spike down on the left-hand side. So, we're just back to where we were a month ago on the S&P, right. I don't think we're really pulling anything forward. I think that we had a liquidity crisis in a lot of names, spooked the market, and add in China, Ebola, all the other things out there," he said. "I think it's a quarter that deserves to get this kind of spike in the market, and I still believe the market has upside."