** Shares in SBB SBBb.ST rise 12% after the Swedish real estate company posted Q3 results showing gradual improvement
** Carlsquare analyst Bertil Nilsson says the Q3 report shows gradual improvement in net operating income and net interest income, plus significantly lower administration costs
** "Positive trend is consistent with that seen in Q2," the analyst adds
** Q3 net operating income rose 3.9% to SEK 614 million ($65.21 million)
** Nilsson marks CEO Leiv Synnes' optimistic statements about the Swedish housing and social property market
** The analyst also notes that significant short positions in SBB shares could trigger a notable price increase if short sellers close their positions following a positive Q3 report
** If gains hold, the stock will see its best day since May
($1 = 9.4155 Swedish crowns)
(Reporting by Jagoda Darlak)
((Jagoda.Darlak@thomsonreuters.com; +48 58 769 65 40;))