LurkerMom: You do not take in account the pandemic was in full swing and already affecting the stock market.
Biden is now reaping the benefits of the up swing.

Incredibly wrong.

The Dow bottomed on March 16, 2020. The Dow plummeted nearly 3,000 points to close at 20,188, losing 12.9%. The drop in stock prices was so massive that the New York Stock Exchange suspended trading several times during that week.

That was ten months before Biden took office.

During election week in November 2020, the Dow had recovered almost 8,000 points from its bottom and traded around 28,000.

If anyone reaped the benefits of the post-pandemic upswing it was Trump, not Biden.

Why do you persist with this magical thinking?

Really, it's alright to say the Biden economy is firing on all cylinders but that inflation remains an ongoing challenge (here and around the world).

And the data is clear: Biden is the best jobs creating president at this point in office in modern history.

And it had nothing to do with Trump. C'mon, he's been out of office for over two years.

forbes.com - The coronavirus crash of and the investing lesson it taught US