Weight made, among other things, the shares of appliance manufacturer Electrolux and index-heavy fashion giant H&M, which fell by 2.7 and 1.3 percent, respectively.
Instead, the major banks rose after SEB raised its recommendation for competitor Swedbank on Friday morning, which climbed 2.1 percent. And industry colleagues were pulled along in the upswing.
Another winner was real estate company SBB, which rose 4.1 percent.
Calculated over the entire past week, the OMXS rose 1.7 percent.
Leading indexes on the major European stock exchanges fell, with the CAC 40 in Paris dropping around 1.5 percent the most.