Tech companies are hanging onto record amounts of cash, and industry watchers want to see more of it reinvested in the companies or distributed to shareholders. FactSet, a financial research firm, tallied all the cash and marketable securities held by the S&P 500, excluding companies in the financials sector. Collectively, these non-finance companies reported $1.29 trillion in cash and short-term investments at the end of the first quarter, a gain of 7.8 percent compared to year-earlier numbers.