One such company is Macerich Co. ( NYSE: MAC), which saw buying by Senior EVP Thomas J.

FORBES: Connect

Art Coppola, Macerich's chairman and chief executive, said he anticipates that Penney will remain a viable tenant for mall owners.

WSJ: Mall Landlords Get a Penney for Thoughts

Macerich has 36 Penney stores in its U.S. portfolio of 62 malls.

WSJ: Mall Landlords Get a Penney for Thoughts

In 2010, Macerich forfeited Valley View to the special servicer overseeing its securitized mortgage, reasoning that the mall wasn't worth its mortgage balance.

WSJ: Bond Investors Strip Malls Off Shopping Lists

"If Macerich couldn't make it work as a mall, it's probably not viable over the long term as a mall, " said Scott Beck, Beck Ventures president.

WSJ: Bond Investors Strip Malls Off Shopping Lists

In November, mall owner Macerich Co. introduced the Samo's Clubhouse play area at its newly redeveloped Santa Monica Place mall, just a few blocks from the beach in Santa Monica, Calif.

WSJ: If Kids Can Play, Will Mom Shop?

The FTSE NAREIT Retail Capped Index Fund ( RTL) has 23.2% in Simon Property (SPG), 11.94% in Kimco Realty (NYSE:KIM) and 10.81% in Macerich Co. (NYSE:MAC) for a total of 45.95% of the ETF.

FORBES: Ridiculously Concentrated ETFs

Among the largest underlying components of IJK, in trading today Perrigo Company ( NASD: PRGO) is off about 1.3%, Hansen Natural Corporation ( NASD: HANS) is up about 2.9%, and Macerich Company ( NYSE: MAC) is relatively unchanged.

FORBES: Notable ETF Outflow Detected - IJK

Among the largest underlying components of RWR, in trading today Kimco Realty Corporation ( NYSE: KIM) is up about 0.7%, Macerich Company ( NYSE: MAC) is up about 0.7%, and Digital Realty Trust Incorporated ( NYSE: DLR) is up by about 0.9%.

FORBES: RWR, KIM, MAC, DLR: ETF Outflow Alert