Tetra Tech traded at $36.09 this Friday September 5th, increasing $0.43 or 1.21 percent since the previous trading session. Looking back, over the last four weeks, Tetra Tech gained 3.17 percent. Over the last 12 months, its price fell by 19.89 percent. Looking ahead, we forecast Tetra Tech to be priced at 35.79 by the end of this quarter and at 34.91 in one year, according to Trading Economics global macro models projections and analysts expectations.