Is TTEK Worth Buying in 2026?

Tetra Tech Inc

STOCK SERVICES-ENGINEERING SERVICES Updated 2026-05-24

Here’s whether Tetra Tech Inc (TTEK) is worth buying in 2026 — based on weekly-updated price trend, RSI momentum, and return vs. the S&P 500. Our current read: Bearish.

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Bearish

Concerns: trading below the 200-day MA (long-term downtrend); below the 50-day MA (medium-term momentum negative); 50-day MA is falling (-4.73% over 10 days); RSI 23 — oversold; weak 1-year return of -22.0%; 3-month momentum negative (-15.9%); rising volume on a downtrend (distribution, 1.23x avg). Currently 35.9% off its 52-week high. Score: -7/7.

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TTEK is trading below its 200-day MA ($34.00) — a key warning sign the longer-term trend is under pressure. An RSI of 22.8 has dropped into oversold territory, which has historically preceded short-term bounces. The 1-year return of -22.0% compares to +27.9% for SPY (trailed the market by 49.9%). The current 35.9% drawdown from the 52-week high reflects elevated risk for momentum-based strategies.

$10,000 invested 1 year ago → $7,800 today
vs. S&P 500 (SPY) — same period trailed market by 49.9%

1-Year Price Chart

Daily candles
MA-50 MA-200 Up Down

Signal Check

Above 200-day MA ($34.00)
Above 50-day MA ($30.43)
!RSI(14) neutral zone (30–70) — currently 22.8
Positive return (-22.0%)
!Within 10% of period high (−35.9%)
Period Range $27.65
$25.81 $43.14
RSI (14) 22.8
0 · OversoldOverbought · 100

Key Metrics

Price$27.65
Period Return-22.0%
Period High$43.14
Period Low$25.81
Drawdown−35.9%
MA-50$30.43
MA-200$34.00
RSI (14)22.8
Avg Volume (30d)3.5M
vs. SPYtrailed by 49.9%
Return Rank#903 of 1236

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