Wall Street has yo-yoed to a mixed finish as rising oil prices and bond yields cranked up the pressure even higher on the stock market.

       The S & P 500 inched up by less than 0.1% Wednesday after taking several U-turns through the day. The Dow Jones Industrial Average fell 68 points, and the Nasdaq composite rose 0.2%.

       September is on track to be the worst month of the year for Wall Street as it tries to absorb a recent leap in Treasury yields. Yields rose further Wednesday, reaching heights unseen in more than a decade. Crude oil prices also rallied above $93 per barrel.

       On Wednesday:

       The S & P 500 rose 0.98 points, or less than 0.1%, to 4,274.51.

       The Dow Jones Industrial Average fell 68.61 points, or 0.2%, to 33,50.27.

       The Nasdaq composite rose 29.24 points, or 0.2%, to 13,092.85

       The Russell 2000 index of smaller companies rose 17.29 points, or 1% to 1,778.90.

       For the week:

       The S & P 500 is down 45.55 points, or 1.1%.

       The Dow is down 413.57 points, or 1.2%.

       The Nasdaq is down 118.96 points, or 0.9%

       The Russell 2000 is up 2.40 points, or 0.1%.

       For the year:

       The S & P 500 is up 435.01 points, or 11.3%.

       The Dow is up 403.02 points, or 1.2%.

       The Nasdaq is up 2,626.37 points, or 25.1%

       The Russell 2000 is up 17.66 points, or 1%.