Falling oil prices and a broker upgrade of the semiconductor sector pushed stocks higher today, enticing buyers back into the market after the previous session’s losses.

Investors welcomed a lower-than-expected drop in wholesale prices and sent stocks higher today, ending a troubled week on Wall Street on a positive note.

Wall Street surged again today lifting the Nasdaq composite index to its best close in nearly 22 months as investors welcomed reports of strong growth in the nation’s manufacturing sector and a hefty rise in construction spending.