Goldman reveals very little about its giant trading operations. That's partly why investors got nervous following a disappointing performance that remains mostly unexplained.
Revenue fell 2%, but still beat Wall Street's expectations of $7.8 billion. Excluding the effects of losing the Costco branded-card deal, it actually rose.
If you piece things together from what companies tell you, the picture is pretty positive.
Crude oil prices threaten to crack $50 a barrel, just weeks to go before OPEC and other producers have to sign off on a new deal to hold down production.