Shares in Emaar Properties sink 5.2 percent to 6.87 dirhams as they go ex-dividend.
Monday was last day for shareholders to claim 0.42 dirham special dividend related to listing of Emaar Development.
Stock has technical support at December's 13-month low of 6.75 dirhams.
Other Dubai real estate developers mixed after weakness on Monday; Union Properties up 1.3 percent and Deyaar up 1.9 percent, but DAMAC falls 0.6 percent.
Dubai stock index falls 1.1 percent (Reporting by Andrew Torchia)
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