rick bensignor attributed that trend to people investing their paychecks at the beginning of the month, but that certainly wasn't the case yesterday. so, what happened? bensignor says the market zigged when so many were looking for it to zag. in essence, he blames yesterday's 168-point drop on the spike in oil prices. next month, the first trading day is friday, april 1, so, susie, we'll see if the markets get tricked on april fool's day. >> susan: only if you're superstitious. >> tom: that's "nightly business report" for wednesday, march 2. i'm tom hudson. good night, everyone. and goodnight to you, too, susie. >> susie: good night, tom. i'm susie gharib. good night, everyone. we hope to see all of you again tomorrow night. "nightly business report" is made possible by: this program was made possible by contributions to your pbs station from viewers like you. thank you. captioning sponsored by wpbt captioned by media access group at wgbh access.wgbh.org >> more information about investing is available in "nightly business report's" video "how wall street works". to order this dvd, cal