BUENOS AIRES, Feb 16 (Reuters) - Argentina's stock, currency and bond market trends on Monday.
* The benchmark MerVal stocks index .MERV fell back 0.97 percent to 1,123.82 points in meager trade, hurt by the absence of institutional investors due to a U.S. market holiday.
* The Buenos Aires-listed shares of index heavyweight Tenaris TENA.BA, a top global supplier of seamless steel tubes for the energy industry, shed 1 percent to 39 pesos.
* On the broad market, volume was paltry at less than $1 million, its lowest level since Sept. 2, 2002, coinciding with another U.S. market holiday. Of active issues, 5 advanced, 23 declined and 15 were unchanged.
* No significant deals on government bonds were made in over-the-counter trade in Buenos Aires due to the U.S. holiday.
* In formal exchange between banks, where the central bank regularly intervenes to avoid abrupt movements, the peso currency weakened 0.07 percent to 3.4925/3.4975 per dollar ARS=RASL.
* In informal trade between foreign exchange houses, as measured by Reuters, the peso firmed 0.14 percent to end at 3.535/3.54 ARSB=. (Reporting by Walter Bianchi; writing by Hilary Burke; editing by Jeffrey Benkoe)