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German Bund futures erased early losses to stand up 13 ticks on the day at 139.88. It saw its biggest one-day loss in more than a month in the previous session when Moody's defied market expectations and affirmed Spain's investment grade rating.
"It's probably a small reversal around supply from yesterday's move," one trader said.
Spain sells up to 4.5 billion euros of three-, four- and 10-year paper.