US stocks fall but now may be "perfect time to buy"

US stocks fell on Wednesday. The S&P 500 fell 0.5 percent, its second consecutive decline.

However, some analysts remain undaunted.

LMM Investments chairman and chief investment officer Bill Miller told CNBC that now is a perfect time to buy US stocks.

According to Miller, positives for equities included moderate economic growth, low interest rates and low inflation. By not raising interest rates, the Federal Reserve has essentially given investors a "free lunch".

Also positive about US stocks is Brian Rogers, chairman and CIO of T. Rowe Price.

"There are really a lot of high quality companies selling at good valuations, good dividend yields, [and] not particularly expensive in today's world," he said.