Wall Street in terms of market value, but in the eyes of the 128-year-old Dow Jones Industrial Average, its stock is ranked well below average. The semiconductor maker and leader of the artificial-intelligence boom officially became a member of the venerable index at 9:30 a.

A $1 gain in UnitedHealth would represent only a 0.18% change for the stock, compared to a significant 4.31% move for Intel. For Nvidia, a $1 change would be about 0.74%. Despite these percentage differences, the effect on the Dow remains the same. A $1 move in any Dow stock translates to roughly 6.6 points on the index.

Nvidia has emerged as a cornerstone of the global semiconductor industry, and shares have risen more than two-fold this year alone.

The ins and outs of membership in the 30-company group that represents success across industries and reflects stock market conditions.

Intel will be replaced by Nvidia on the blue-chip Dow Jones Industrial Average index after a 25-year run, underscoring the shift in the chipmaking market and marking another setback for the struggling semiconductor firm.

The Dow Jones Industrial Average held most of its midday gains in the afternoon session Wednesday as an inflation report showed price gains were in line with estimates. Meanwhile, a company backed by artificial intelligence giant Nvidia took a dive in the stock market today.