...released by Morgan Stanley, traders said.
The stock price was up 4.98 percent at 3,565 crowns at 1055 GMT, after reaching a record high of 3,629 earlier.
One trader said the Morgan report put Orco on a target price of 160 euros, equal to 4,520 crowns at Wednesday's exchange rate.
Shares in another property developer, ECM were up 2 percent at 1,570.
The wider market gained 0.97 percent, measured by the PX index.
No one at Morgan Stanley could immediately be reached for comment.
[PRAGUE/Reuters/Finance.cz]