** Shares of payroll processor Automatic Data Processing ADP.O rise 2.1% to $304.50 premarket
** Co posts Q2 revenue increase of 8% to $5.05 bln, compared with analysts' estimate of $4.97 bln- LSEG data
** Reports Q2 adj. EPS of $2.35 per share, compared with estimates of $2.29
** Second-quarter revenue was driven by healthy demand for co's human capital management and payroll software - Maria Black, CEO, ADP
** Four of 18 brokerages rate the stock "buy", 13 "hold" and one "sell"; their median PT is $297
** In 2024, ADP stock rose 59.8%