UPDATE 1-MarketAxess Q2 profit up 14 pct, matches estimates

* Rise in commissions, lower expenses drive results

* Commissions rise 8 pct to $21.8 mln

* Revenue up 0.8 pct at $25.8 mln

July 28 (Reuters) - MarketAxess Holdings Inc (MKTX.O), an electronic bond-trading platform operator, posted a higher second-quarter profit that matched analysts' estimates, helped by a rise in total commissions and lower expenses.

Net income was $3.2 million, or 8 cents a share, compared with $2.8 million, or 8 cents a share, a year earlier.

Revenue increased marginally to $25.8 million from $25.6 million.

Analysts on average expected earnings of 8 cents a share, before special items, on revenue of $24.98 million, according to Reuters Estimates.

Total commission revenue rose 8 percent to $21.8 million.

Shares of the company closed at $11.06 Monday on Nasdaq. (Reporting by Abhinav Sharma in Bangalore; Editing by Mike Miller)