The S & P 500 index notched its best January in more than three decades. Gains for the major benchmark, in fact, have been made impressive in January since the year "Fatal Attraction" made its theatrical debut.
The S & P 500
SPX, + 0.86%
climbed 7.9% for its best January since 1
on Thursday, the final trading session of the month, gained 7.2%, its best January since it posted 8% January gain in 1989, according to Dow Jones Market Data.
The broad-market benchmark S & P was looking at its best month overall since October 2015, while January has been set to deliver the best monthly Dow gain since March 2016.
Meanwhile, the Nasdaq Composite Index
COMP, + 1.37%
had its best January since 2001 with a 9.2% monthly gain.
Check out: MarketWatch's intraday snapshot of the market
This has been made possible by a remarkable turnaround in appetite for stocks, given that December is the worst month for the three main equity gauges since the 2008 financial crisis global markets.
What's changed? Not much and quite a bit.
Although many people claim that they have lost their lives, they have failed. S / P 500 are at 17.66, down from 23.09 a year ago (see chart below):  Source: FactSet
On top of that, the Federal Reserve has adopted a decidedly more dovish stance in recent weeks, culminating in Wednesday's policy update, where the central bank said it was going to "patient" about its plans to normalize crisis-era policy.
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For better or worse Alongside those factors, corporate quarterly results have not been as bad as many investors had feared.
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